Looking for a Martal Group Alternative? 5 Cold Email Agencies to Consider in 2026

If you're searching for a Martal Group alternative for cold email, you're probably running into one of a few common friction points — the 3-month pilot commitment, mixed lead quality in niche verticals, or pricing that doesn't match the volume you actually need. The good news: the cold email agency space in 2026 is deep, and there are legitimate options depending on whether you need hyper-personalization, enterprise scale, or a pure done-for-you execution model. This article breaks down five strong alternatives so you can make a call without wasting weeks on discovery calls.

What Is Martal Group and Why Are People Looking Elsewhere?

Martal Group is a global B2B lead generation agency with 15+ years of experience, 200+ sales executives, and an AI-driven prospecting platform trained on 40+ million emails. They run omnichannel outreach across email, LinkedIn, and cold calling, covering 50+ industries and 2,000+ clients. On paper, it's an impressive operation.

But Clutch and G2 reviews tell a more nuanced story. Recurring complaints point to mixed lead quality in complex or niche verticals, delayed testing cycles, and a 3-month pilot program requirement before you can go month-to-month. For companies that need fast iteration or have a highly specific ICP, that onboarding structure can feel like a roadblock. Clients also note that CRM integration and reporting sometimes require more manual attention than expected.

None of that makes Martal a bad agency — they've earned Clutch Global Leader status multiple years running and G2 Grid Leader in Spring 2025. But if their model doesn't match your stage, budget, or ICP complexity, there are better fits. Here's what they look like.

What to Actually Look For in a Cold Email Agency

Before you start comparing agencies, get clear on what your sales motion actually needs. Most companies pick the wrong agency because they optimize for brand recognition instead of fit. A few questions that actually matter:

• Do you need email-only or multi-channel? Email-only agencies move faster and cost less. Omnichannel adds coordination overhead — make sure you actually need it.
• What's your ACV (average contract value)? Low ACV deals need volume. High ACV deals need personalization. These require completely different approaches.
• How niche is your ICP? If you're selling into a very specific industry or role, you need an agency that does deep list research — not one that fires 10,000 templated emails.
• What's your timeline? Some agencies take 6-8 weeks to set up. If you need pipeline in 30 days, that's a problem.
• Contract flexibility? Month-to-month vs. quarterly commitments matters a lot if you're still validating your outbound motion.

According to Instantly.ai's 2026 Cold Email Benchmark Report, the average cold email reply rate sits at 3.43%, with top-performing campaigns hitting 10%+. Campaigns using advanced personalization — beyond just first name and company — hit reply rates as high as 18%. That stat alone should tell you what to look for in an agency: evidence they personalize, not just proof they send volume. Your cold email deliverability also plays a massive role — an agency that skips proper domain setup is burning your sender reputation from day one.

With that framework in place, here are five agencies worth comparing.

5 Martal Group Alternatives for Cold Email in 2026

1. Belkins

Belkins is one of the most well-known names in B2B cold email, and for good reason. They run a full omnichannel suite — cold email, cold calling, LinkedIn, CRM consulting, and account-based marketing — with a heavy emphasis on hand-vetted lead research. Every prospect gets manually checked against your ICP's specific criteria before a single email goes out.

Their standard cold email cadence runs 4–5 emails, brief and outcome-focused, with follow-up waves that provide value without hammering inboxes. They also handle the full deliverability stack: DNS setup, mailbox creation, warm-up, and daily volume calibration. According to their public website, Belkins has scheduled 200,000+ appointments for nearly 1,000 clients.

Best for: Mid-market to enterprise companies that need a full omnichannel outbound operation with strong account-based capabilities.

Watch out for: Pricing typically runs $5,000–$15,000/month, which is on the higher end. If you're running email-only outbound, you're paying for channels you may not use.

2. CIENCE

CIENCE is part agency, part tech platform. They pair managed SDR services with their proprietary AI system (graph8) for multi-channel outbound at enterprise scale — email, phone, chat, SMS, and ads, all blended with human SDRs for research, sequencing, and campaign management. Founded in 2015 and headquartered in Denver, they're built for large sales organizations that need systematic pipeline generation with complex CRM integrations.

They hold a 4.2★ rating on Clutch across 140+ reviews. Some clients note limited customization relative to their scale, which tracks — at enterprise volume, standardization is part of how they maintain consistency.

Best for: Enterprise companies with large sales teams that need structured, process-driven outbound integrated into existing operations.

Watch out for: There's typically a $5,000 one-time GTM setup fee (or $2,500 for startups) plus ongoing monthly retainers. If you're a growth-stage company looking for quick iteration, the setup overhead can slow things down. Their B2B outbound system is built for scale, not speed-to-launch.

3. SalesBread

SalesBread is a boutique agency founded by Jack Reamer that operates on a completely different philosophy than high-volume agencies: one hyper-personalized lead per day. Their model is built around manual, CCQ-style personalization for every single prospect — 30+ ICP filters for list building, strategy workshops upfront, and inbox monitoring throughout the campaign.

They include premium data tools (ZoomInfo, Sales Navigator) in their service, so clients don't need separate subscriptions. The upside is extremely high signal-to-noise. The downside is you're not getting volume — you're getting precision. According to SalesForge's directory profile, SalesBread charges around $3,000/month plus a one-time setup fee.

Best for: Smaller B2B companies with high-ACV offers ($20k+ deals) where quality of conversation matters far more than volume of replies.

Watch out for: If you need to book 20+ meetings a month from cold email alone, this model won't get you there. It's a fit for consultative sales — not transactional volume plays. Make sure your cold email offer is tight enough to justify the per-lead investment.

4. Leadium

Leadium is a US-based outbound agency that positions itself around quality over volume, running omnichannel appointment setting across email, cold calling, LinkedIn, SMS, and even curated gifting. Co-founded by veterans of the outsourced sales industry, they emphasize transparency — shared Slack channels, real-time analytics, and deep ICP strategy work upfront.

What makes Leadium interesting is that according to their public website, 68% of all meetings booked through their campaigns come from cold calling efforts, with an average connect rate of 12.5%. That's a notably phone-heavy model wrapped inside an omnichannel package — something to factor in if you're specifically looking for email-first execution. Their contracts start month-to-month from $1,000, which gives you more flexibility than most.

Best for: Companies that want strategic guidance plus execution, with a strong cold calling component supporting the email outreach.

Watch out for: If you're looking for a pure cold email play, Leadium's model skews heavily toward phone — you'd be paying for capability you may not prioritize. Also worth thinking through how your B2B outbound sales process is set up before adding call-heavy outreach on top of email.

5. Arvani Media

Arvani Media is a done-for-you B2B outbound agency founded by Anthony Volz, specializing in cold email, LinkedIn outreach, and AI-powered automation. The focus is on building and running complete outbound systems — from building the B2B lead list to managing email infrastructure, writing sequences, and handling deliverability end-to-end.

The key differentiator is the AI-powered personalization layer. Rather than templating at scale or manually writing one email at a time, Arvani uses AI-driven workflows to produce personalized outreach efficiently — which means campaigns can run with high personalization without the per-email labor cost that boutique agencies carry. This is the same approach making AI outreach tools for sales teams increasingly relevant in 2026.

Services include done-for-you cold email campaigns, LinkedIn outreach, email infrastructure management, lead list building, and AI-powered personalization. The methodology follows a multi-channel approach combining email and LinkedIn — because cold email vs. LinkedIn isn't an either/or decision for most B2B companies.

Best for: B2B companies that want a fully managed outbound system with AI-powered personalization, without the overhead of enterprise agency pricing or boutique agency volume limitations.

Watch out for: If you need cold calling as a primary channel, Arvani's focus is email and LinkedIn. Phone-first companies should factor that in.

Feature Comparison Table

Here's a side-by-side look at how these five agencies stack up on the dimensions that actually matter for most B2B buyers:

Pros and Cons: Quick Reference

Martal Group

• ✅ Massive scale across 50+ industries
• ✅ Experienced SDR team + AI platform
• ✅ Strong reviews on Clutch and G2
• ❌ 3-month pilot before month-to-month
• ❌ Mixed quality at complex or niche verticals
• ❌ Higher price point for smaller teams

Belkins

• ✅ Full omnichannel with manual lead verification
• ✅ Strong deliverability infrastructure
• ✅ Proven appointment-setting track record
• ❌ Premium pricing ($5k-$15k/month)
• ❌ May be overkill for email-only campaigns

CIENCE

• ✅ Enterprise-grade tech stack (graph8)
• ✅ Strongest for large, structured sales orgs
• ✅ Multi-channel at scale
• ❌ High setup cost ($5k GTM fee)
• ❌ Less flexibility for smaller or nimble teams
• ❌ Limited customization at enterprise scale

SalesBread

• ✅ Most personalized model on this list
• ✅ Premium data tools included
• ✅ Founder-led, responsive service
• ❌ Volume is intentionally low (1 lead/day)
• ❌ Expensive per-lead at low ACV

Leadium

• ✅ Flexible month-to-month contracts
• ✅ Strong cold calling capability
• ✅ Real-time reporting and Slack transparency
• ❌ Phone-heavy — not ideal for email-first strategies
• ❌ Email plays more of a supporting role

Arvani Media

• ✅ Done-for-you cold email + LinkedIn
• ✅ AI-powered personalization at scale
• ✅ Full email infrastructure management included
• ✅ Lead list building built into the service
• ❌ No cold calling channel
• ❌ Focused on email and LinkedIn — not ads or SMS

Which Agency Is Right for You?

There's no universal answer here, but the decision tree is pretty clean once you know your situation.

If you're at enterprise scale and need a fully staffed SDR team running omnichannel across email, phone, LinkedIn, and ads — Belkins or CIENCE are the most mature options. Budget accordingly: you're paying for infrastructure, not just execution.

If you run a high-ticket B2B sale and care more about the quality of one conversation than the quantity of replies, SalesBread's hyper-personalized model is hard to beat. Just don't expect volume — that's not the point.

If you want flexible month-to-month contracts and your sales motion is phone-heavy, Leadium gives you the most flexibility. Their cold calling numbers are strong for a company at their size.

If you're a growth-stage B2B company that needs a fully managed cold email and LinkedIn system — with real AI-powered personalization baked in, not bolted on — Arvani Media is worth a conversation. The model is built around building a B2B outbound system that runs on your behalf, not just sending emails and reporting back numbers. That includes everything from fixing deliverability issues and setting up infrastructure to writing sequences informed by B2B buying signals.

Cold email in 2026 isn't just about volume — it's about the right message reaching the right person at the right time. According to Hunter.io's State of Cold Email report, the average reply rate across 31 million analyzed emails is 4.5%, but campaigns with strong personalization and follow-up strategy consistently outperform that. The difference between an average campaign and a high-performing one almost always comes down to ICP precision and personalization depth — which should be your primary filter when evaluating any agency on this list.

Worth reading if you're still building out your thinking: cold email agency pricing models explained, and how to evaluate AI reply classification for managing inbox responses at scale.

Frequently Asked Questions

If you're searching for a Martal Group alternative for cold email, you're probably running into one of a few common friction points — the 3-month pilot commitment, mixed lead quality in niche verticals, or pricing that doesn't match the volume you actually need. The good news: the cold email agency space in 2026 is deep, and there are legitimate options depending on whether you need hyper-personalization, enterprise scale, or a pure done-for-you execution model. This article breaks down five strong alternatives so you can make a call without wasting weeks on discovery calls.

What Is Martal Group and Why Are People Looking Elsewhere?

Martal Group is a global B2B lead generation agency with 15+ years of experience, 200+ sales executives, and an AI-driven prospecting platform trained on 40+ million emails. They run omnichannel outreach across email, LinkedIn, and cold calling, covering 50+ industries and 2,000+ clients. On paper, it's an impressive operation.

But Clutch and G2 reviews tell a more nuanced story. Recurring complaints point to mixed lead quality in complex or niche verticals, delayed testing cycles, and a 3-month pilot program requirement before you can go month-to-month. For companies that need fast iteration or have a highly specific ICP, that onboarding structure can feel like a roadblock. Clients also note that CRM integration and reporting sometimes require more manual attention than expected.

None of that makes Martal a bad agency — they've earned Clutch Global Leader status multiple years running. But if their model doesn't match your stage, budget, or ICP complexity, there are better fits. Here's what they look like.

What to Actually Look For in a Cold Email Agency

Before comparing agencies, get clear on what your sales motion actually needs. Most companies pick the wrong agency because they optimize for brand recognition instead of fit. A few questions that actually matter:

• Do you need email-only or multi-channel? Email-only agencies move faster and cost less. Omnichannel adds coordination overhead — make sure you actually need it.
• What's your ACV? Low ACV deals need volume. High ACV deals need personalization. These require completely different approaches.
• How niche is your ICP? If you're selling into a very specific industry or role, you need an agency that does deep list research — not one firing 10,000 templated emails.
• What's your timeline? Some agencies take 6–8 weeks to set up. If you need pipeline in 30 days, that's a problem.
• Contract flexibility? Month-to-month vs. quarterly commitments matters a lot if you're still validating your outbound motion.

According to Instantly.ai's 2026 Cold Email Benchmark Report, the average cold email reply rate sits at 3.43%, with top-performing campaigns hitting 10%+. Campaigns using advanced personalization — beyond just first name and company — hit reply rates as high as 18%. That stat alone should tell you what to look for: evidence an agency personalizes, not just proof they send volume. Your cold email deliverability also plays a massive role — an agency that skips proper domain setup is burning your sender reputation from day one.

With that framework in place, here are five agencies worth comparing.

5 Martal Group Alternatives for Cold Email in 2026

1. Belkins

Belkins is one of the most well-known names in B2B cold email outreach. They run a full omnichannel suite — cold email, cold calling, LinkedIn, CRM consulting, and account-based marketing — with a heavy emphasis on hand-vetted lead research. Every prospect gets manually checked against your ICP's specific criteria before a single email goes out.

Their standard cold email cadence runs 4–5 emails, brief and outcome-focused, with follow-up waves that provide value without hammering inboxes. They also handle the full deliverability stack: DNS setup, mailbox creation, warm-up, and daily volume calibration. According to their public website, Belkins has scheduled 200,000+ appointments for nearly 1,000 clients.

Best for: Mid-market to enterprise companies that need a full omnichannel outbound operation with strong account-based capabilities.

Watch out for: Pricing typically runs $5,000–$15,000/month. If you're running email-only outbound, you're paying for channels you may not use.

2. CIENCE

CIENCE is part agency, part tech platform. They pair managed SDR services with their proprietary AI system (graph8) for multi-channel outbound at enterprise scale — email, phone, chat, SMS, and ads, all blended with human SDRs for research, sequencing, and campaign management. Founded in 2015 and headquartered in Denver, they're built for large sales organizations that need systematic pipeline generation with complex CRM integrations.

They hold a 4.2★ rating on Clutch across 140+ reviews. Some clients note limited customization relative to their scale — at enterprise volume, standardization is part of how they maintain consistency. Building your B2B outbound system inside CIENCE's infrastructure is a serious commitment.

Best for: Enterprise companies with large sales teams that need structured, process-driven outbound integrated into existing CRM operations.

Watch out for: There's typically a $5,000 one-time GTM setup fee (or $2,500 for startups) plus ongoing monthly retainers. If you're a growth-stage company looking for quick iteration, the setup overhead can slow things down significantly.

3. SalesBread

SalesBread is a boutique agency founded by Jack Reamer that operates on a completely different philosophy than high-volume agencies: one hyper-personalized lead per day. Their model is built around manual, CCQ-style personalization for every single prospect — 30+ ICP filters for list building, strategy workshops upfront, and inbox monitoring throughout the campaign.

They include premium data tools (ZoomInfo, Sales Navigator) in their service, so clients don't need separate subscriptions. The upside is extremely high signal-to-noise. According to SalesForge's agency directory, SalesBread charges around $3,000/month plus a one-time setup fee.

Best for: Smaller B2B companies with high-ACV offers ($20k+ deals) where quality of conversation matters far more than volume of replies.

Watch out for: If you need to book 20+ meetings a month from cold email alone, this model won't get you there. Make sure your cold email offer is tight enough to justify the per-lead investment before signing up.

4. Leadium

Leadium is a US-based outbound agency positioning itself around quality over volume, running omnichannel appointment setting across email, cold calling, LinkedIn, SMS, and even curated gifting. Co-founded by veterans of the outsourced sales industry, they emphasize transparency — shared Slack channels, real-time analytics, and deep ICP strategy work upfront.

According to their public website, 68% of all meetings booked through Leadium campaigns come from cold calling, with an average connect rate of 12.5%. That's a notably phone-heavy model wrapped inside an omnichannel package. Their contracts start month-to-month from $1,000, which gives more flexibility than most agencies on this list.

Best for: Companies that want strategic guidance plus execution, with a strong cold calling component supporting the email outreach.

Watch out for: If you're looking for a pure cold email play, Leadium's model skews heavily toward phone. Also worth mapping out your B2B outbound sales process before adding call-heavy outreach on top of email.

5. Arvani Media

Arvani Media is a done-for-you B2B outbound agency founded by Anthony Volz, specializing in cold email, LinkedIn outreach, and AI-powered automation. The focus is on building and running complete outbound systems — from building the B2B lead list to managing email infrastructure, writing sequences, and handling deliverability end-to-end.

The key differentiator is the AI-powered personalization layer. Rather than templating at scale or manually writing one email at a time, Arvani uses AI-driven workflows to produce personalized outreach efficiently — which means campaigns can run with high personalization without the per-email labor cost that boutique agencies carry. This is the same approach making AI outreach tools for sales teams increasingly relevant in 2026.

Services include done-for-you cold email campaigns, LinkedIn outreach, email infrastructure management, lead list building, and AI-powered personalization. The methodology follows a multi-channel approach combining email and LinkedIn — because cold email vs. LinkedIn isn't an either/or decision for most B2B companies worth their salt.

Best for: Growth-stage to mid-market B2B companies that want a fully managed outbound system with AI-powered personalization — without enterprise agency pricing or boutique volume limitations.

Watch out for: Arvani's focus is email and LinkedIn. If cold calling is your primary channel, that's not their lane.

Feature Comparison Table

Here's a side-by-side look at how these five agencies stack up on the dimensions that matter most for B2B buyers:

Pros and Cons: Quick Reference

Martal Group

• ✅ Massive scale across 50+ industries
• ✅ Experienced SDR team + AI-driven platform
• ✅ Strong recognition on Clutch and G2
• ❌ 3-month pilot commitment before monthly billing
• ❌ Mixed lead quality at niche or complex ICPs
• ❌ Higher price point for smaller teams

Belkins

• ✅ Full omnichannel with manual lead verification per prospect
• ✅ Strong deliverability infrastructure built in
• ✅ 200,000+ appointments on public record
• ❌ Premium pricing ($5k–$15k/month)
• ❌ May be overkill for email-only campaigns

CIENCE

• ✅ Enterprise-grade tech stack with graph8 AI
• ✅ Strongest option for large, structured sales orgs
• ✅ True multi-channel at scale
• ❌ High setup cost ($5k GTM fee)
• ❌ Less flexibility for fast-moving, smaller teams
• ❌ Some reviewers note limited customization

SalesBread

• ✅ Most personalized outreach model on this list
• ✅ Premium data tools included (no extra subscriptions)
• ✅ Founder-led, highly responsive service
• ❌ Intentionally low volume — not a pipeline fire hose
• ❌ Expensive per-lead for low-ACV offers

Leadium

• ✅ Flexible month-to-month contracts
• ✅ Strong cold calling connect rates (12.5% avg per public site)
• ✅ Real-time Slack reporting and transparency
• ❌ Phone-heavy — email plays a supporting role
• ❌ Not ideal for email-first outbound strategies

Arvani Media

• ✅ Done-for-you cold email + LinkedIn system
• ✅ AI-powered personalization built into the workflow
• ✅ Full email infrastructure management included
• ✅ Lead list building is part of the service
• ❌ No cold calling channel
• ❌ Focused on email and LinkedIn — not ads or SMS

Which Agency Is Right for You?

The decision tree is pretty clean once you know your situation.

If you're at enterprise scale and need a fully staffed SDR team running omnichannel across email, phone, LinkedIn, and ads — Belkins or CIENCE are the most mature options. Budget accordingly: you're paying for infrastructure, not just execution.

If you run a high-ticket B2B sale and care more about the quality of one conversation than the quantity of replies, SalesBread's hyper-personalized model is hard to beat. Just don't expect volume — that's not the point.

If you want flexible month-to-month contracts and your sales motion is phone-heavy, Leadium gives you the most flexibility with the strongest cold calling numbers for an agency at their size.

If you're a growth-stage B2B company that needs a fully managed cold email and LinkedIn system — with real AI-powered personalization baked in, not bolted on — Arvani Media is worth a conversation. The model is built around building a complete outbound operation that runs on your behalf, not just sending emails and reporting back numbers. That includes everything from fixing deliverability problems to writing sequences informed by B2B buying signals. Also worth understanding how AI reply classification can help manage inbound responses at scale once your campaign is live.

One more thing worth knowing: according to Hunter.io's State of Cold Email, follow-up emails generate 42% of all campaign replies. Whatever agency you pick, make sure they have a disciplined follow-up strategy — not just a strong first-touch sequence. That's where most cold email programs quietly fall apart. For industry-specific plays, also check out what's working in cold email for SaaS, cold email for financial services, and cold email for staffing — the right agency should understand your vertical, not just your ICP filters.

Frequently Asked Questions