1. A-Sales.co:

Score: 5.0/5 ⭐
Quick Reason: Performance-based lead generation for agencies — hyper-personalized campaigns, zero fluff, and pay-only-for-results pricing.

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Why A-Sales Is the Best Lead Gen Agency for Agencies in 2025:

A-Sales is purpose-built for growth-focused agencies who are tired of unpredictable pipelines, flaky lead sources, and outdated outreach methods. Whether you're a digital marketing firm, branding studio, CRO shop, dev agency, or boutique consultancy — A-Sales helps you book high-quality sales meetings with your ideal clients, fast.

What sets A-Sales apart? Their pay-per-performance model: you only pay when meetings get booked with qualified buyers. It’s the clearest sign they stand behind their work — and that you won’t waste budget on vanity metrics or empty promises.

Unlike generic SDR services, A-Sales builds agency-specific campaigns tailored to your value prop, ICP, and positioning. They specialize in helping service-based businesses break into hard-to-reach markets, secure discovery calls with key decision-makers, and shorten sales cycles with laser-targeted outbound.

Whether you sell high-ticket retainers or strategic projects, A-Sales becomes your go-to partner for client acquisition.

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A-Sales: Services Built for Agencies:

🟠 Agency Appointment Setting: Custom-crafted campaigns designed to book qualified intro calls — not “leads,” real conversations.

🟠 Cold Email Campaigns: Hyper-personalized copy that positions your agency’s offer to resonate with CMOs, founders, and marketing heads.

🟠 LinkedIn Outreach: Strategic connection building and warm messaging flows to start sales conversations with agency buyers.

🟠 Intent-Based Cold Calling: Human-first cold calls based on digital intent signals to capture high-interest leads.

🟠 Outsourced SDR Teams: Trained sales reps managing full-funnel outreach without the cost or headache of hiring in-house.

🟠 Agency ABM Campaigns: Custom campaigns focused on dream accounts — niche verticals, strategic brands, or regional targets.

🟠 Agency Outbound Training & Strategy: Done-with-you support for in-house teams needing playbooks, scripts, and conversion optimization.

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✅ Pros:

• Performance-based model — only pay for booked meetings, not guesswork
  
• Fast results — most agencies get meetings on the calendar within 7–14 days
  
• 100% SDR-led campaigns with strategy, copy, and delivery included
  
• Custom-built to your service offering — from brand to PPC to HubSpot setups
  
• Used by 50+ marketing, dev, SEO, branding, and full-service agencies
  
• Clear deliverables, transparent reporting, and frictionless onboarding

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🚫 Cons:

• ❌ Not a good fit for DIYers — A-Sales is for agencies ready to scale with expert help
  
• ❌ Not focused on inbound content — they deliver direct outbound performance

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A-Sales in Action:

• 📅 140+ meetings booked in 30 days for a branding agency targeting e-commerce brands
  
• 💰 $400K+ pipeline created in 6 weeks for a boutique creative studio
  
• 🎯 33 booked demos/month on average for a HubSpot implementation partner
  
• 🧲 3 closed retainer clients in 90 days for a marketing automation consultancy

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A-Sales Pricing for Agencies:

All packages are pay-for-performance — no retainers, no hourly fees. You only pay when qualified meetings are booked with your ICP. Pricing depends on your target audience, deal size, and volume goals.

📞 Book a Free Discovery Call
🔗 www.a-sales.co

2. Belkins:

Score: 4.8/5 ⭐
Quick Reason: Done-for-you outbound engine built for creative, marketing, and consulting agencies that need predictable pipeline growth.

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Why Belkins is a Top Choice for Lead Generation Agencies:

Belkins brings the firepower of an enterprise-grade outbound sales team to agencies looking to scale client acquisition without the chaos of in-house prospecting. With over 2,000 B2B clients served, Belkins specializes in creating omnichannel campaigns that book agency decision-makers at scale — whether you're a branding agency, SEO shop, design studio, or fractional CMO firm.

What makes Belkins perfect for agencies is their Center of Excellence model: a dedicated pod of experts — from SDRs to copywriters and tech leads — that plug into your team like an outsourced growth engine. Whether your ICP includes CMOs, founders, or B2B ops leaders, Belkins builds custom playbooks to put you in front of the right people fast.

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Belkins Services for Agencies:

🔹 Outbound Appointment Setting – Book calls with decision-makers at brands you actually want to work with
🔹 LinkedIn & Cold Email Campaigns – Human-driven, tailored messaging to cut through inbox noise
🔹 Multichannel Prospecting – Add layers with phone, SMS, voicemail drops, and retargeting
🔹 List Building & Lead Research – Highly targeted prospecting lists based on vertical, revenue, tech stack
🔹 CRM Setup & Deliverability Audits – Ensure emails land and leads flow properly
🔹 Paid Ads & ABM Campaigns – For agencies targeting larger enterprise brands
🔹 Dedicated SDR Teams – Fully managed outbound teams aligned to your sales goals

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Pros:

✅ Battle-tested with 300K+ appointments booked across industries
✅ Dedicated team of 5–7 professionals per client account
✅ Perfect for mid-market to enterprise agencies looking for scale
✅ Launch campaigns within 7–10 days
✅ Strong reporting, A/B testing, and tech infrastructure
✅ Great for outbound-driven client acquisition

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Cons:

🚫 High monthly retainers with 3–6 month minimums
🚫 Onboarding complexity — not a plug-and-play solution for small teams
🚫 Less nimble than performance-based agencies like A-Sales
🚫 May over-engineer outreach for boutique agencies or solo founders

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Belkins in Action (Agency Results):

📞 Booked 180+ meetings for a UK creative agency expanding into the US
🎯 Helped a PR firm land discovery calls with 5 Fortune 1000 brands
📈 Built a 400K pipeline in 90 days for a fractional CMO collective
📬 Reduced no-show rate by 36% for a marketing ops firm

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Belkins Pricing for Agencies:

Belkins operates on monthly retainer models starting from $3K–$7K/month, depending on volume, team size, and complexity.

💼 Common plans include:

• 100–400 appointments/year
  
• Dedicated SDR + copy + research team
  
• LinkedIn/email/phone outreach
• A/B testing, CRM sync, weekly optimizations

3. Leadium:

Score: 4.7/5 ⭐
Quick Reason: U.S.-based SDR experts delivering high-converting outbound for agencies with precision, personalization, and powerful strategy.

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Why Leadium Is Perfect for Agencies:

Agencies don’t need fluff — they need qualified sales conversations with decision-makers who need their services. That’s where Leadium shines. With over $1B in client-generated pipeline and 1,500+ successful outbound programs, Leadium is built to deliver high-intent leads through smart, channel-matched campaigns.

From marketing consultants to branding firms to adtech providers, Leadium acts like an extension of your agency — bringing in appointment-setting firepower without hiring, onboarding, or managing SDRs in-house. Their team doesn’t just copy-paste sequences — they build outbound systems rooted in persona-based research, conversion psychology, and data science.

If your agency’s sales motion depends on education, thought leadership, or high-ticket pitches — Leadium gives you a revenue team, not just a campaign.

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Leadium’s Agency-Focused Services:

• Outbound Appointment Setting – Cold outreach via email, phone, SMS, and LinkedIn, customized to attract ideal agency clients
  
• Inbound SDR Support – Fast-response lead qualification to convert form fills and content leads into meetings
  
• Custom ICP Research – Persona-driven lead lists with job titles, intent, firmographics, and tech usage
  
• Sales Playbook Creation – Full scripting, copywriting, objection handling, and channel tuning
  
• Deliverability & Tech Stack Setup – Inbox warming, CRM integration, and call/email infrastructure
  
• U.S.-Based SDR Team – Trained and managed reps who communicate your agency’s value clearly and effectively
  
• Analytics + Coaching – Weekly refinement sessions to optimize sequences and double down on what works

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Pros:

✅ Month-to-month — perfect for project-based or seasonal agencies
✅ High-touch onboarding and ICP alignment
✅ U.S.-based reps fluent in complex agency offerings
✅ Deep personalization — not just automated templates
✅ Consultative approach: audits, reporting, sales strategy included
✅ Strong track record in M&A, VC-backed growth, and complex services

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Cons:

🚫 Not ideal for entry-level campaigns — pricing fits more mature agencies
🚫 No cheap/freemium model
🚫 Requires 2–3 week ramp time for campaign readiness
🚫 Limited international language/localization support

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Leadium In Action for Agencies:

📞 120+ discovery calls set for a U.S. brand agency in Q1
📈 3X pipeline increase for a paid ads agency entering the fintech vertical
🎯 79% reply rate improvement after shifting to channel-matched messaging
💡 Client roster includes HubSpot agencies, RevOps consultants, and marketing automation pros

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Leadium Pricing:

Leadium offers custom packages based on number of SDRs, desired appointment volume, and outreach complexity.

📦 Every Plan Includes:

• Fully managed outbound SDR(s)
  
• Custom sales scripts & lead research
  
• Weekly coaching + performance reviews
  
• CRM and tech setup
  
• Manual lead list building with 5+ filters
  
• Strategic reporting with conversion insights
  

4. Leadbird:

Score: 4.6/5 ⭐
Quick Reason: AI-enhanced cold email that helps agencies consistently book calls with brands — no retainers, no fluff.

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Why Leadbird Is a Top Pick for Agencies:

Leadbird has become a favorite among marketing, branding, and digital agencies who need a fast, lean way to land new accounts. Their standout model? Pay-per-lead. That means no bloated retainers, no mystery dashboards — just clear, meeting-ready opportunities.

Agencies love Leadbird because it lets them keep creative and strategic teams focused on client work, while Leadbird handles outbound campaigns behind the scenes. With proprietary tools like Quicklines.ai and Scrubby.io, they personalize outreach at scale — scraping websites, job posts, and intent signals to craft hyper-relevant cold emails that actually get replies.

Leadbird has run campaigns for branding firms, ad agencies, media shops, and fractional CMOs — and consistently lands meetings with decision-makers at companies like Pepsi, Hershey’s, and Klarna. If your agency is tired of referrals slowing down, Leadbird helps you take back control of your pipeline.

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Leadbird Services for Agencies:

• Done-for-You Cold Email: Fully managed outreach that books calls with decision-makers at brands you want.
  
• Pay-Per-Meeting Model: You only pay when they land a qualified meeting on your calendar.
  
• Hyper-Personalized Messaging: Website scraping + AI-enhanced copy that feels human and specific.
  
• Dedicated Campaign Manager: Weekly reporting, live optimization, and feedback loops.
  
• Lead Research & Targeting: Human-verified leads based on your niche (e.g. DTC, tech, SaaS, ecommerce).
  
• Inbox Setup & Deliverability: Domain warm-up, SPF/DKIM, and inbox health taken care of.
  
• Weekly Lead Drops: Consistent, drip-fed meetings to keep your calendar full — not overwhelmed.

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Pros:

✅ Performance-based pricing (no retainers)
✅ Super fast setup — campaigns go live in <10 days
✅ Works great for creative, growth, and performance agencies
✅ AI tools make personalization at scale easy
✅ Meetings with big logos: Klarna, Pepsi, Shopify, Hershey’s
✅ Great for testing outbound before building an SDR team

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Cons:

🚫 Cold email only — no calling or LinkedIn sequences
🚫 Not ideal for enterprise deal cycles or long-form consultative sales
🚫 No native CRM sync — manual export required
🚫 Doesn’t offer nurturing or deal follow-up
🚫 Pay-per-lead means you might need to filter for quality

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Leadbird in Action (Agency Wins):

🎯 Booked 30+ meetings in 3 weeks for a creative agency targeting food brands
📦 Landed 2 closed deals for a marketing automation agency in under 6 weeks
🏷️ Helped a growth agency break into Fortune 1000 retail and DTC brands
💼 Consistently gets meetings with CMOs, Heads of Brand, and Marketing Directors

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Leadbird Pricing for Agencies:

📦 Pay-per-meeting-ready-lead model — you’re only charged when a qualified prospect is ready for a meeting.
🗓️ No setup fees, no minimum contract, cancel anytime
✅ Includes strategy, lead research, inbox setup, and deliverability

5. Growth Engine X:

Score: 4.5/5 ⭐
Best For: Boutique creative agencies & consultancies wanting cold email that actually works

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Why Growth Engine X Works for Agencies:

If you run a marketing, branding, content, or creative agency, chances are you’ve heard: “Your cold email feels like spam.” Growth Engine X exists to kill that narrative. This agency turns cold outreach into an inbound trigger — leveraging clever copy, laser-targeted prospect lists, and precise deliverability setup to help agencies stand out and book meetings with decision-makers.

Founded by cold email expert Eric Nowoslawski, Growth Engine X is best for agencies with a niche or consultative offer (like fractional CMO, CRO, creative strategy, video, or branding) who want to build awareness while booking real opportunities. Their done-for-you model helps agency owners skip the SDRs and scale booked calls via email-only systems that don’t feel like every other agency’s pitch.

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Growth Engine X Services for Agencies:

• ✉️ Cold Email Copy & Strategy – Crafts email flows that reflect your agency's voice — no templates
  
• 🔥 Inbox Infrastructure & Deliverability – Full tech setup (warmup, domains, inboxes) to avoid spam
  
• 🔍 Hyper-Personalized ICP Research – Use 20+ sources to build dream-client lists (from CMOs to Founders)
  
• 🧠 Campaign Testing + Feedback Loops – Multi-variant subject lines, CTAs, tone, and cadence experimentation
  
• 🎓 Cold Outreach Playbooks – Plug-and-play guides for agency teams to build internal outreach
  
• 🎥 Training Content – Cold email teardown videos, weekly testing docs, and advanced segmentation tactics

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Pros:

✅ One of the few cold email agencies designed for other agencies
✅ Personalized email strategy that mirrors brand tone, no generic spam
✅ Strong deliverability setup: SPF, DKIM, domain warming, list hygiene
✅ Trusted by both startups and other lead gen agencies
✅ Great for creative founders who want to grow pipeline without SDRs

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Cons:

🚫 Not scalable beyond ~500 contacts/month — not for mass lead farming
🚫 No SDRs, no calling — email only
🚫 Manual research takes time — longer prep before launch
🚫 Waitlisted at times due to boutique size
🚫 Lacks CRM, ABM, or nurture support — outbound only

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Growth Engine X in Action:

📌 Booked $60K+ in revenue in 3 months for a podcast production agency
📌 Generated 12+ qualified leads/month for a UX design firm targeting DTC brands
📌 Launched full-stack cold email systems for fractional CMOs and advisory consultants
📌 Built 500+ ICP-matched lists for media agencies and boutique PR firms
📌 Helped other lead gen agencies improve deliverability and reply rates

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Pricing:

Growth Engine X is boutique, meaning pricing is customized — but you can expect:
💼 What You Get:

• Email copy & strategy from Eric + team
  
• 100–500 highly-targeted prospects/month
  
• Deliverability setup (domains, inbox warmup, verification)
  
• Testing, optimization, and performance tracking
  

💰 Typical Engagement:

• ~$3,000–$7,500/month based on complexity & prospect volume
• Email-only, no SDRs or ABM

6. CIENCE:

Score: 4.6/5 ⭐
Quick Reason: Enterprise-grade SDR-as-a-Service with human + AI orchestration — ideal for agencies seeking scale, structure, and process-driven pipeline generation.

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Why CIENCE Works for Agencies:

CIENCE isn’t just a lead gen vendor — it’s a fully operational outbound sales infrastructure. With a team of 1,000+ SDRs and a robust AI-powered platform (CIENCE GO), they provide B2B agencies with the structure, predictability, and scale to generate high-quality leads without building internal sales teams from scratch.

Whether you're an SEO agency targeting CMOs, a creative firm trying to reach founders, or a RevOps shop needing to land B2B SaaS clients — CIENCE offers deep ICP targeting, SDR management, intent signals, and omnichannel outreach built to match your go-to-market playbook.

Agencies juggling multiple service lines or targeting niche verticals benefit from CIENCE’s data-backed methodology, tech-stack integration, and seamless outbound execution — all with a team that behaves like your own.

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CIENCE Services for Agencies:

📞 SDR-as-a-Service – Human + AI SDR teams running cold email, calling, and LinkedIn at scale
🧠 GTM Strategy – Custom outbound design, ICP refinement, and positioning
📈 CIENCE GO Platform – All-in-one system for targeting, tracking, and optimizing outreach
💬 Inbound SDR Services – Handle demo requests and website leads with speed and professionalism
🔍 Data Research & List Building – Firmographic, technographic, and intent-based lead targeting
🎯 Campaign Playbooks – Persona-based cadences and messaging by industry
📊 Analytics & Performance Reviews – Weekly reports, KPI dashboards, and optimization sprints

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Pros:

✅ Massive outbound capacity — scale from 1 to 50 SDRs
✅ Hybrid model — combines AI-driven sequences with U.S. or global human SDRs
✅ White-glove support — strategy, playbooks, and rep training done for you
✅ Fully managed outreach, including compliance, deliverability, and tools
✅ Ideal for agencies with long sales cycles or mid-market/enterprise targets
✅ Built to support multi-vertical agency plays and reseller GTM

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Cons:

🚫 Not nimble — slower onboarding and limited flexibility for micro-agencies
🚫 Minimums start high (~$10K/month), not ideal for lean budgets
🚫 Platform and campaign structure may overwhelm smaller internal teams
🚫 AI-led outreach can miss creative nuance in messaging
🚫 Requires 6–12 month commitment to realize full ROI

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CIENCE in Action for Agencies:

• Helped a content marketing agency 4x their deal flow with SDR + inbound response programs
  
• Ran outbound for a branding agency targeting high-growth DTC startups — $350K+ pipeline in 60 days
  
• Enabled an SEO agency to shift from referrals to outbound by building vertical-specific cadences
  
• Developed scalable campaigns for agency partners selling to manufacturing, SaaS, and healthcare.

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CIENCE Pricing for Agencies:

📦 Engagement Options:

• Performance-Based: Pay-per-meeting (limited availability)
  
• SDR-as-a-Service: Dedicated SDR + manager + platform access (most popular)
  
• Enterprise Custom: Custom GTM teams, reporting, and tech-stack integration
  
  

💡 Expect starting monthly fees between $9,500 – $18,000, depending on SDR capacity and targeting complexity.

✅ All plans include:

• 100% managed SDRs (hiring, training, oversight)
  
• Weekly meetings and reporting
  
• List building + campaign copy
  
• Multi-channel campaign deployment
  
• CRM and inbox integration
  

7. Martal Group:

Score: 4.7/5 ⭐
Quick Reason: Onshore SDRs + AI automation for agencies needing reliable outbound without hiring in-house.

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Why Martal Group Is a Smart Pick for Agencies

Agencies that want more meetings but don’t want the hassle of building an internal SDR team often turn to Martal Group. With 15+ years of experience and clients in 50+ industries, Martal delivers fully managed outbound appointment setting — particularly valuable for creative, media, or marketing firms expanding into new verticals.

Whether you’re pitching marketing retainers, enterprise consulting, or creative packages, Martal uses onshore SDRs and AI-backed workflows to fill your pipeline with warm prospects. Their approach feels tailored, professional, and aligned with high-ticket B2B agency offerings — not spammy outreach.

From building contact lists to refining your agency’s pitch, Martal acts as an embedded sales team designed to help you grow faster without internal overhead.

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Martal’s Services for Agencies:

🔹 Outbound Appointment Setting – Cold email, LinkedIn, and voice cadences that open doors for agency services
🔹 Lead Qualification & Nurturing – No just "leads" — Martal qualifies them so your team meets decision-makers
🔹 Sales Outsourcing – Fully managed SDR teams for short-term pilots or ongoing sales motion
🔹 AI-Driven Engagement – Behavior-based personalization that makes outreach relevant
🔹 Multi-Region Prospecting – Scalable campaigns across the US, EMEA, and LATAM
🔹 Consulting & Playbooks – Support in sharpening your offer and pitch for different verticals

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Pros:

✅ Onshore SDRs (U.S., Canada) — high-quality convos, no offshore scripting
✅ Built-in AI systems to personalize and optimize outreach
✅ Works across industries: marketing, branding, recruiting, tech services, and more
✅ Strong traction with B2B agency models pitching $10K–$100K retainers
✅ Optional support beyond prospecting — onboarding, upsell, client management

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Cons:

🚫 Steep entry cost — minimums start around $7.5K/month
🚫 No budget-friendly starter tier for new/small agencies
🚫 Requires 3-month minimum for most engagements
🚫 Not ideal for DIY or hybrid teams — they handle the whole engine
🚫 Focused on B2B — not suitable for B2C or creative influencer agencies

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Martal Group in Action:

📈 Helped a design agency close 14 new retainer clients in 3 months
💼 Landed $40K/month content contracts via outbound for a creative studio
🌍 Enabled expansion from the U.S. into EMEA with full SDR setup
🔁 Deployed email + phone + LinkedIn campaigns that achieved 2–3x response rates compared to in-house

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Martal Group Pricing for Agencies:

Martal operates on a monthly flat-rate model with service tiers based on campaign complexity.

📦 All Tiers Include:
✔️ Dedicated SDR
✔️ Contact research & list building
✔️ Cold email, phone & LinkedIn outreach
✔️ Weekly reporting + strategy calls
✔️ Campaign optimization

8. Flowd:

Score: 4.6/5 ⭐
Quick Reason: Cold email agency with proven experience helping marketing, recruitment, and creative agencies book qualified client meetings — fast.

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Why Flowd Works Well for Agencies:

Flowd is a go-to for agency owners who want one thing: more qualified client calls without hiring SDRs or doing manual prospecting. Specializing in email-first outreach and backed by clients like Sony, Chanel, and IKEA, Flowd knows how to position agencies to win attention — even in saturated markets.

Whether you're a boutique creative shop, a recruitment agency, or a B2B marketing firm, Flowd plugs into your GTM motion and handles the dirty work of identifying ICPs, writing messaging, managing inboxes, and booking calls with decision-makers. Their standout stat? 94% of meetings actually happen — meaning your sales team isn’t wasting time on no-shows.

Unlike complex retainer agencies or overly tech-heavy platforms, Flowd offers a fully-managed outbound service that’s built to deliver quick wins and sustainable growth for agencies of all sizes.

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Flowd’s Services for Agencies:

✉️ Cold Email Prospecting – Multi-step, human-written email campaigns to get you noticed
🛠️ Fully Managed Campaigns – Flowd handles targeting, messaging, testing, inbox rotation, and deliverability
📚 Custom Sales Messaging – Tailored scripts and subject lines that showcase your agency’s positioning
🌍 ICP Targeting by Vertical – Target B2B buyers across SaaS, retail, finance, healthcare, and more
📊 Reporting + Performance Insights – ROI calculators, campaign dashboards, and weekly reviews
🤝 Lead Nurturing & Follow-up – They keep the conversation going until the call gets booked

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Pros:

✅ Ideal for agencies with a defined niche or offer (e.g. SEO, branding, recruiting)
✅ Strong email copywriting and personalization — no generic spam
✅ Very high delivery and response rates (8x ROI reported on average)
✅ Used by creative, talent, and service agencies to land 5–6 figure clients
✅ No CRM setup required — just tell them your ICP and they get to work

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Cons:

🚫 Email-only — no calling or LinkedIn as part of standard package
🚫 Doesn’t support ABM or long-cycle enterprise selling
🚫 No internal SDR support or hybrid coaching — it’s fully managed or nothing
🚫 Pricing not publicly listed — must request a quote
🚫 Not ideal for B2C, DTC, or influencer-style agencies

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Flowd in Action:

🎯 57 meetings and £375K pipeline for a procurement consultancy
🧠 205 meetings and £109K pipeline for a bid writing service
🎥 Booked 89 agency pitch meetings and closed £2M+ for Jobbio
📈 Delivered 239 meetings for a commercial real estate agency
💼 High win rates in creative, recruiting, and strategy verticals

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Flowd Pricing for Agencies:

Flowd offers custom quotes based on:

• Monthly meeting targets
  
• Your ICP complexity (e.g. C-suite vs mid-level buyers)
  
• Geography (UK, EU, US, etc.)
  
• Industry and offer value
  

9. SalesRoads:

Score: 4.6/5 ⭐
Quick Reason: U.S.-based, phone-first agency that delivers high-quality, conversation-ready leads for agencies looking to scale via high-touch outreach.

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Why SalesRoads Works for Agencies:

SalesRoads is one of the most established outbound sales agencies in North America — and for agencies, that means predictable, high-touch pipeline generation without needing to build an SDR team in-house.

With over 100,000 meetings booked for 500+ clients, SalesRoads has perfected the art of appointment setting, especially in verticals that require strategic selling: digital services, performance marketing, paid media, SEO, branding, and B2B consultancies. Their strength lies in voice-first outreach (cold calling) backed by human reps, market research, and CRM-integrated workflows.

If your agency has a solid offer but lacks the bandwidth for consistent outbound, SalesRoads plugs in quickly, learns your pitch, and delivers sales-ready meetings — no fluff, no MQL dumping.

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SalesRoads Services for Agencies:

📞 Full SDR Appointment Setting – Human-led cold calling to decision-makers with expert scripts and rebuttals
📊 Market Research & Lead Sourcing – Ideal for niche service agencies or regional targeting
🧠 Campaign Strategy & Sales Playbooks – Built custom to your industry and client profile
⚙️ CRM Integration & Pipeline Syncing – Direct integration into HubSpot, Salesforce, or your CRM of choice
📈 Weekly Performance Reports – Track lead stages, conversion metrics, and campaign ROI
🤝 Live U.S.-Based SDRs – Not outsourced or AI — real people, trained in your positioning

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Pros:

✅ Proven track record: 17+ years and 500+ clients
✅ Ideal for agencies offering B2B services, including SaaS, PPC, Web Dev, etc.
✅ U.S.-based reps deliver premium experience (no offshore risks)
✅ 4-week testing model before committing
✅ Supports complex sales cycles — not just “demo booked”
✅ Custom scripting + positioning = no canned outreach

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Cons:

🚫 Higher entry price: ~$9.5K/mo minimum
🚫 Not agile — heavy onboarding and longer ramp times
🚫 Voice-led model might not suit all buyer types
🚫 No ABM, paid ads, or content support
🚫 Focused only on outbound — no inbound lead generation

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SalesRoads in Action (For Agencies):

✔️ Booked 937 sales calls for a marketing analytics agency targeting government contracts
✔️ Generated 300+ agency-qualified leads per quarter for SEO and PPC firms
✔️ Helped a web design firm break into 75 new regional markets within 6 months
✔️ Created custom lead-gen funnels for full-funnel agencies and media buyers targeting SaaS clients

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SalesRoads Overview:

Founded in 2007 and based in Florida, SalesRoads is built to serve firms that depend on high-trust, relationship-driven deals — a perfect fit for agencies. Their SDRs undergo rigorous training to understand client service offerings, and the campaigns are fully tailored with your agency’s tone, ICP, and sales goals.

Agencies working with SalesRoads often report shorter sales cycles, cleaner pipeline visibility, and higher close rates — especially when targeting decision-makers in marketing, HR, operations, or finance.

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SalesRoads Pricing for Agencies:

📦 Starts at: $9,500 per 4-week cycle
🧠 Includes:

• Dedicated U.S. SDR
  
• SalesOps support + campaign manager
  
• Fully managed CRM integration
  
• Custom scripts, rebuttals, objection handling
  
• Weekly reports + live dashboards
  

10. Callbox Inc:

Score: 4.6/5 ⭐
Quick Reason: Enterprise-grade, multi-channel lead gen across 60+ markets — built for global agency growth, not small-scale DIY.

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Why Callbox Stands Out for Agencies:

Callbox is a global B2B lead generation powerhouse with 20+ years of experience serving agencies, tech firms, and enterprise brands across 5 continents. For agencies that work with clients across multiple verticals — from SaaS to logistics to MedTech — Callbox provides an expansive platform for appointment setting, ABM campaigns, event promotion, and inbound qualification.

What makes Callbox unique is its “Human + AI” approach, pairing real sales reps with machine-powered lead scoring, CRM sync, and automation to drive outreach at scale. Whether you're an agency looking to generate leads for yourself or fulfill lead gen services on behalf of clients, Callbox can act as an outsourced growth engine tailored to your region, ICP, or vertical.

Callbox’s proprietary SMART Engage™ platform enriches contacts in real time, supports multi-touch outreach across voice, email, LinkedIn, SMS, and even webinars — and delivers sales-ready leads with custom campaign reporting.

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Callbox Agency-Focused Services:

🔹 Client-Fulfillment Campaigns – White-label lead generation for agency clients across B2B verticals
🔹 Agency Self-Promotion – Build your own qualified pipeline via cold email, calling, and ABM
🔹 Event & Webinar Marketing – Fill virtual or live events with targeted, high-intent attendees
🔹 Inbound Lead Qualification – Nurture and qualify inbound leads through voice, email, and chat
🔹 Global Outreach – Scale lead gen across EMEA, APAC, LATAM, and North America
🔹 SMART Engage™ Platform – Orchestrated outreach with predictive scoring and CRM sync
🔹 Sales Consulting & Setup – Campaign planning, messaging, persona building, and handoff strategy

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Pros:

✅ Truly global lead gen — 60+ countries supported across multiple languages
✅ White-label campaigns available for agencies reselling lead gen services
✅ Multichannel orchestration — email, voice, social, SMS, and webinar outreach
✅ Great for client acquisition or scaling done-for-you fulfillment
✅ 20-year track record with 15K+ clients and 10K+ successful campaigns
✅ Strong in regulated or hard-to-penetrate industries like finance, healthcare, and enterprise IT

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Cons:

🚫 Not optimized for startup or lean agencies — minimums may be too high
🚫 Pricing only revealed after multiple sales calls
🚫 Heavy onboarding and process overhead
🚫 Campaigns can feel "templated" without enough customization
🚫 Lacks nimble, feedback-driven campaign iteration like smaller agencies offer

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Callbox in Action:

📌 Helped a digital marketing agency scale into the U.S. market with 40+ meetings in 60 days
📌 Delivered 100+ ABM appointments for a global agency’s enterprise client in cybersecurity
📌 Supported event registrations and webinar attendance for PR and branding agencies
📌 Provided white-label SDR support for agencies without internal sales teams
📌 Enabled cross-border campaigns for creative and media firms expanding globally

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Callbox Overview:

Founded in 2004 and headquartered in California, Callbox Inc. is one of the most experienced players in outsourced B2B lead generation. Their hybrid human + AI model combines SDR teams with marketing automation, allowing agencies to scale lead gen across geographies without hiring in-house or building tech from scratch.

Whether you're targeting marketing decision-makers, CMOs, or vertical-specific stakeholders, Callbox offers industry-aware messaging, data-backed targeting, and cross-channel campaigns that can fuel both agency growth and client success.

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Callbox Pricing Overview:

📦 Custom Pricing Based on:

• Number of leads or appointments
  
• Territories & industries targeted
  
• Fulfillment vs in-house lead gen use case
  
• Duration & campaign complexity

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💼 Packages typically include:
✅ SDRs + Multilingual Support
✅ SMART Engage platform access
✅ CRM integration & enrichment
✅ Weekly campaign analytics
✅ Optional inbound lead qualification

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