# Best cold email agencies in the US in 2026

> **Quick answer**: For B2B cold email in the US, Belkins leads with 230+ verified Clutch reviews and a 4.9/5 rating, operating as an SDR-as-a-service at $4,000-$10,000/month. Martal Group ranks second for bespoke engagements. Before signing with any agency, most operators enrich and verify their prospect lists independently using Derrick at €9/month to retain data ownership and avoid vendor lock-in on their contact database.

> **Summary** 8 B2B cold email agencies in the US compared in 2026: pricing, specialties, target clients, pros and cons. Ranking based on 4 verified sources (Clutch, G2, Google SERP top 10, agency direct sites).

*Published: 2026-05-05 · Updated: 2026-05-05 · Canonical: https://derrick-app.com/en/best-cold-email-agencies-us/*

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> **If you read just one thing**: for B2B cold email in the US, **Belkins** is the safest pick (Clutch 4.9/5, 230+ reviews) and the most-reviewed agency in the category. If you want a smaller, more bespoke shop, **Martal Group** ranks consistently across independent listings. Tighter budget? Look for a US-based freelancer through [Upwork](https://www.upwork.com) or LinkedIn. Ranking based on 8 agencies in May 2026.

> **Before signing with an agency: build your list with Derrick** Before paying a US cold email agency $2,000-$10,000/month, make sure your list is clean. [Derrick](/en/) lets you enrich and verify 1,000 B2B emails in minutes, directly from Sales Navigator or Apollo. You own the data, the agency just executes. That’s what most senior cold email operators do to avoid getting locked into an external agency’s data stack. [**Create your free Derrick account**](/signup) — 50 free credits, no card required.

*Updated May 5, 2026. Ranking based on 4 verified sources (Clutch, G2, Google SERP top 10 May 2026, agency direct sites).*

## Ranking methodology

This ranking covers 8 cold email agencies headquartered in the United States or with a dominant US client base in May 2026. It relies on 4 distinct sources:

- **[Clutch](https://clutch.co)** — average rating, verified review count, agency profile
- **[G2](https://www.g2.com)** — service-category profiles when available
- **Google SERP top 10** for queries “best cold email agency US”, “best cold email agency”, and “best B2B cold email agency 2026” (crawled May 2026)
- **Direct agency sites** to verify services, published case studies and pricing when public

Agencies are included only if they appear in **at least 3 distinct sources** (internal cross-check rule). Pricing is marked “NDA” when the agency does not publish it on their site and no external source converges on a reliable range.

**Stated bias**: Derrick edits this content. None of the listed agencies are Derrick customers as of publication, but some may become so. Rankings move — quarterly review planned.

**Out of scope**: this ranking does not cover non-US agencies (see our [best cold email agencies in France](/en/best-cold-email-agencies-france/) article) or cold email SaaS tools (see our [Lemlist alternatives](/en/alternatives-lemlist-2/)).

## Top 8 cold email agencies in the US

### 1. Belkins

- **Specialty**: B2B cold email + appointment setting, outsourced SDR-as-a-service
- **Pricing**: NDA. Estimated $4,000-$10,000/month based on Clutch and G2 client testimonials.
- **Target clients**: B2B SaaS, professional services, Series A-C scale-ups
- **Rating**: 4.9/5 on [Clutch](https://clutch.co) (230+ reviews, May 2026), 4.8/5 on G2 (90+ reviews)

Belkins is the most-reviewed cold email agency on the market, period. Founded in 2017 with US headquarters, they operate as an SDR-as-a-service with a globally distributed team. Their public Clutch profile shows hundreds of detailed reviews with verified buyer information — an order of magnitude above most competitors.

**Ideal use case**: B2B SaaS or professional services that wants to industrialize outbound without hiring an internal SDR team, with a monthly budget of $5K+.

**Pros**:

- Most solid verified reviews on the market (gold standard)
- Mature outbound stack (warming, deliverability, tested sequences)
- Track record across multiple verticals (SaaS, fintech, services)

**Cons**:

- Pricing on the higher end of the market
- Structured process can feel heavy for an agile team
- Less flexible on bespoke or one-off projects

[**Visit Belkins**](https://belkins.io)

### 2. Martal Group

- **Specialty**: B2B sales-as-a-service (cold email + cold calling + LinkedIn)
- **Pricing**: NDA. Estimated $4,500-$8,000/month based on Clutch testimonials.
- **Target clients**: B2B tech, SaaS, IT services, mid-market
- **Rating**: 4.9/5 on [Clutch](https://clutch.co) (60+ reviews, May 2026)

Martal Group is a North-American sales-as-a-service shop active since 2009. They run multi-channel outbound (email + phone + LinkedIn) with a heavy emphasis on tech B2B verticals. Their team mixes US and Canadian SDRs, useful when the ICP spans both markets.

**Ideal use case**: B2B tech company that wants outbound and discovery calls handled together, by US SDRs with a vertical-specific playbook.

**Pros**:

- 15+ years of operational history (Clutch 2009 listing)
- Multi-channel (email + phone + LinkedIn) under one contract
- Vertical playbooks for tech, SaaS, IT services

**Cons**:

- Less specialized: cold email is one channel among others
- Smaller pure-cold-email team than Belkins
- Pricing requires a sales call

[**Visit Martal Group**](https://martal.ca)

### 3. CIENCE Technologies

- **Specialty**: outbound SDR + data + tech, full-stack lead generation
- **Pricing**: NDA. Estimated $5,000-$15,000+/month based on G2 and Clutch testimonials.
- **Target clients**: enterprise, mid-market B2B, complex sales cycles
- **Rating**: 4.4/5 on [G2](https://www.g2.com) (700+ reviews, May 2026)

CIENCE is one of the largest pure-play outbound shops in the US, with a stack that combines SDR services, proprietary data and tech. They serve enterprise and complex mid-market deals where the cycle requires several touchpoints. Their G2 review volume (700+) is the highest in the category, with a more mixed signal than Belkins (4.4 vs 4.9).

**Ideal use case**: mid-market or enterprise B2B with complex sales motions and budget for a multi-month engagement.

**Pros**:

- Largest review sample on G2 in the category
- Combined SDR + proprietary data stack
- Track record on enterprise and complex sales

**Cons**:

- Mixed reviews, lower average than Belkins / Martal
- Heaviest engagement — not for short campaigns
- Higher minimums on commitment

[**Visit CIENCE**](https://cience.com)

### 4. SalesRoads

- **Specialty**: B2B appointment setting, outbound calling and email
- **Pricing**: NDA. Estimated $4,000-$8,000/month per Clutch testimonials.
- **Target clients**: B2B services, mid-market tech
- **Rating**: 4.8/5 on [Clutch](https://clutch.co) (50+ reviews, May 2026)

SalesRoads is a US-based outbound shop with a strong emphasis on appointment setting. They’ve been in the market since 2007 and combine cold calling with cold email in a single playbook. They market themselves around “guaranteed appointments”, which is unusual but worth scrutinizing on case studies.

**Ideal use case**: B2B services or mid-market tech that wants real human SDRs picking up the phone in addition to email.

**Pros**:

- Combined email + calling under one team
- Long operating history (since 2007)
- Clear US English voice and phone presence

**Cons**:

- Less of a pure cold email specialist
- “Guaranteed appointment” claims need case-study verification
- Smaller scale than CIENCE / Belkins

[**Visit SalesRoads**](https://salesroads.com)

### 5. EBQ

- **Specialty**: outsourced sales + marketing + Salesforce admin
- **Pricing**: NDA.
- **Target clients**: B2B mid-market, SaaS, tech services
- **Rating**: 4.8/5 on [Clutch](https://clutch.co) (40+ reviews, May 2026)

EBQ is a Texas-based outsourced sales and marketing shop. They handle appointment setting, lead nurturing and Salesforce admin in a single bundle, which makes them less of a pure cold email shop and more of a fractional sales department.

**Ideal use case**: B2B mid-market that wants a packaged outsourced sales motion (cold outreach + CRM ops + nurturing) rather than just cold email.

**Pros**:

- Bundled sales + marketing + CRM ops
- Salesforce-native team
- Texas-based, US-Central time zone

**Cons**:

- Not a pure cold email specialist
- Bundled offering may include services you don’t need
- Less SERP visibility on cold-email-specific queries

[**Visit EBQ**](https://ebq.com)

### 6. Operatix

- **Specialty**: B2B SaaS sales development, US + EMEA
- **Pricing**: NDA.
- **Target clients**: B2B SaaS, cybersecurity, devtools
- **Rating**: 4.6/5 on [G2](https://www.g2.com) (40+ reviews, May 2026)

Operatix is a sales development agency with a strong focus on B2B SaaS, particularly cybersecurity and devtools. They run US and EMEA SDR teams, useful when targeting cross-Atlantic accounts. Their case studies skew enterprise SaaS rather than SMB.

**Ideal use case**: B2B SaaS in cybersecurity, devtools or similar technical verticals targeting US and EMEA.

**Pros**:

- Vertical specialization (SaaS, cybersecurity, devtools)
- US + EMEA coverage in one team
- Strong enterprise case studies

**Cons**:

- Less suited for SMB or consumer-adjacent verticals
- Higher minimum engagement commitment
- Pricing on the upper end

[**Visit Operatix**](https://www.operatix.net)

### 7. SalesNash

- **Specialty**: outbound prospecting + appointment setting, B2B mid-market
- **Pricing**: NDA. Public mentions cite roughly $3,000-$6,000/month.
- **Target clients**: B2B services, mid-market SaaS
- **Rating**: 4.8/5 on [Clutch](https://clutch.co) (45+ reviews, May 2026)

SalesNash is a Canadian-US outbound shop with a positioning between Belkins and Martal: medium-sized, focused on appointment setting, with a fair price point in the $3K-$6K/month range based on public testimonials. They emphasize industry-specific SDRs.

**Ideal use case**: B2B mid-market that wants a mid-priced, mid-sized agency with named industry SDRs.

**Pros**:

- Pricing in the more affordable mid-tier
- Industry-specific SDR pairing
- Strong Clutch profile for the size

**Cons**:

- Smaller team capacity than Belkins / CIENCE
- Less brand recognition than top 3
- Public pricing still requires a sales call

[**Visit SalesNash**](https://salesnash.com)

### 8. CloudTask

- **Specialty**: B2B SDR-as-a-service marketplace
- **Pricing**: starting around $2,500/month per SDR (public on site)
- **Target clients**: B2B SaaS, services, mid-market
- **Rating**: 4.6/5 on [G2](https://www.g2.com) (30+ reviews, May 2026)

CloudTask runs a marketplace model where buyers pick SDRs from a pool. It’s closer to a hybrid between agency and freelance platform. The pricing per SDR is published, which is rare in this category and useful to budget exactly.

**Ideal use case**: B2B SaaS or services that wants SDR capacity with predictable per-seat pricing and quick ramp.

**Pros**:

- Public per-SDR pricing — rare transparency
- Marketplace model — faster sourcing
- Mix of email + LinkedIn + dialer

**Cons**:

- Less integrated playbook than Belkins / CIENCE
- Quality varies by SDR picked
- Less suited for highly technical verticals

[**Visit CloudTask**](https://www.cloudtask.com)

## How to choose a US cold email agency

**Pick a top-3 agency (Belkins, Martal, CIENCE)** if:

- You want maximum verified reviews before signing
- You have a $5K+/month outbound budget for at least 6 months
- You need an industrialized SDR machine, not a small team

**Pick a mid-tier agency (SalesRoads, EBQ, Operatix, SalesNash, CloudTask)** if:

- Your budget is $2,500-$5,000/month
- You want a more bespoke or vertical-specific playbook
- You can accept a smaller review base in exchange for flexibility

**Go with a freelancer** (see [best cold email freelancers in Paris](/en/best-cold-email-freelancers-paris/) for an EU example) if your budget is < $2,000/month or if you want a one-off setup without a long-term contract.

## Comparison of the 8 US agencies

| Agency | Source rating | Specialty | Pricing (est.) | Best for |
| --- | --- | --- | --- | --- |
| Belkins | 4.9/5 Clutch (230+) | Cold email + SDR | $4-10K/mo | SaaS Series A-C |
| Martal Group | 4.9/5 Clutch (60+) | Email + phone + LinkedIn | $4.5-8K/mo | Tech B2B |
| CIENCE | 4.4/5 G2 (700+) | SDR + data + tech | $5-15K+/mo | Enterprise / complex sales |
| SalesRoads | 4.8/5 Clutch (50+) | Calling + email | $4-8K/mo | Services + mid-market |
| EBQ | 4.8/5 Clutch (40+) | Outsourced sales + ops | NDA | Bundled sales motion |
| Operatix | 4.6/5 G2 (40+) | SaaS sales dev | NDA | SaaS / cybersecurity |
| SalesNash | 4.8/5 Clutch (45+) | Outbound + appointment | $3-6K/mo | Mid-market |
| CloudTask | 4.6/5 G2 (30+) | SDR marketplace | $2.5K+/SDR/mo | Predictable per-seat |

*Pricing estimates based on Clutch / G2 client testimonials and public agency mentions. Always confirm directly.*

## Why use Derrick before or with a US cold email agency

When you pay a US cold email agency $5,000-$10,000 a month, you pay for execution. But execution on bad data gives bad results: high bounce rate, low reply rate, burned domain in 3 months. That’s the #1 reason outbound campaigns fail, regardless of the agency.

[Derrick](/en/) solves that part of the problem. You take a Sales Nav list of 1,000 prospects, run it through Derrick: you get 1,000 verified emails with bounce rate < 2%, enriched with current role, company size, tech stack, and a recency signal (job change, funding round, hiring).

Here’s what you can do with Derrick before or in parallel with an agency:

- **Mass email verification** — bounce rate < 2%, essential before any campaign
- **Full company enrichment** — size, industry, tech stack, [LinkedIn employee count](/en/find-company-employee-count/), ICP signals
- **Find work email from name + company** — match rate > 70% if the agency asks you to provide a clean file
- **Direct export to Lemlist, Smartlead, La Growth Machine** — the agency just orchestrates the sequence

Derrick is used by 31,000+ B2B operators, including senior cold email consultants in the US and Europe. The logic: the agency focuses on orchestration and copy, you keep control of the data.

If you work with an agency, you can even share your Derrick workspace (read-only) so they enrich and clean the lists before pushing them into sequence. You keep the data, they execute. No more lock-in, no more surprise when the contract ends. API access and the MCP endpoint (Claude Desktop, ChatGPT) are available from the Standard plan ($20/mo minimum).

[**Create your free Derrick account**](/signup) — 50 free credits, no card required. [See all plans](/pricing) — starting at $19/month.

## FAQ

**How much does a US cold email agency cost in 2026?** Observed ranges go from $2,500/month per SDR seat (CloudTask marketplace) to $15,000+/month for an enterprise CIENCE engagement. Most US agencies running a small SDR team for a SaaS land between $4,000 and $8,000/month all-in.

**What’s the difference between a US cold email agency and an offshore one?** US agencies bring native English SDRs, US time-zone coverage and stronger compliance posture (CAN-SPAM, state privacy laws). Offshore shops are cheaper but the buyer-side voice quality and compliance maturity is uneven.

**How long until you see results with a US cold email agency?** Count 4-8 weeks for setup (domain warm-up, sequences, files) then 6-12 weeks to stabilize a meeting volume. Any agency promising results in 30 days is either lying or cutting corners on deliverability.

**How do I evaluate a US cold email agency before signing?** Ask: (1) the Clutch / G2 rating and review count, (2) 3 recent case studies with verifiable contacts, (3) the technical stack used for warm-up and deliverability, (4) who owns the data at the end of the contract, (5) who owns the sending domains.

**Do I need a tool like Derrick if I hire a US agency?** Yes, especially if you want to keep control of your prospect lists and not be dependent on the agency’s data when the contract ends. Derrick lets you provide clean enriched lists to the agency, so they can focus on execution and copy.

**Are US agencies better than European ones for the US market?** Generally yes for cultural codes and time-zone fit. For SaaS targeting both US and EU, agencies with a distributed team (Belkins, Operatix) make sense.

**Do US cold email agencies work with tools like Lemlist or Smartlead?** Yes, most use a mix of Lemlist, Smartlead, Instantly or La Growth Machine. See our [Lemlist alternatives](/en/alternatives-lemlist-2/) if you want to understand which tool your agency uses.

## Conclusion

The US cold email agency market in 2026 is mature and segmented. Top-tier agencies (Belkins, Martal Group, CIENCE) bring the strongest verified-review guarantees and the most industrialized SDR machines. Mid-tier agencies (SalesRoads, EBQ, Operatix, SalesNash, CloudTask) offer more flexibility, sometimes vertical depth, and a lower entry point.

Whichever you pick, don’t sign without validating two things: data quality at input and ownership of that data when the contract ends. That’s exactly what Derrick lets you keep under control.

[**Create your free Derrick account**](/signup) — 50 free credits, no card required.

**See also:**

- [Best cold email agencies in France](/en/best-cold-email-agencies-france/) — for FR market context
- [Top 10 Lemlist alternatives](/en/alternatives-lemlist-2/) — for the cold email tool layer
- [LinkedIn data extraction guide 2026](/en/linkedin-data-extraction-guide-2026/) — for the LinkedIn layer of your prospecting