Updated May 7, 2026. Ranking based on 5 verified sources (Clutch, G2, Salesbread, Belkins blog, Built For B2B).

If you read only one thing

For US-based B2B teams running LinkedIn outreach, Belkins is the safest pick — 5-star Clutch rating across 230+ reviews, omnichannel coverage (LinkedIn + email + cold call), Champion Award winner since 2024. Budget alternative: Cleverly from $397/mo for self-service. Ranking based on 8 agencies reviewed in May 2026.

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Methodology

This ranking covers 8 LinkedIn outreach agencies operating in the United States, selected from a starting list of 24 candidates referenced across Clutch, G2, Salesbread, Belkins blog, ConnectSafely, Built For B2B, and Callbox reviews. We required at least 3 distinct public sources mentioning each agency before listing it.

Selection criteria: LinkedIn-first or LinkedIn-prominent service offering, US client base or US headquarters, transparent pricing or third-party-verified price ranges, public review trail (Clutch, G2, or comparable), specialty in B2B outbound (not generic social media management).

Period: Snapshot taken in May 2026. Ratings on Clutch and G2 move week to week — verify on the source before contacting.

Disclosure: Derrick is the data-enrichment tool that publishes this article. None of the agencies listed below pay to be ranked, and several have no commercial relationship with Derrick. The order reflects volume of public evidence (reviews + reach + transparency), not editorial preference.

What this list does not cover: agencies that focus exclusively on LinkedIn ads, recruiting agencies, and DIY LinkedIn tools (we cover tools separately on the blog).

Top 8 LinkedIn outreach agencies in the US

1. Belkins

Specialty: Omnichannel B2B appointment setting (LinkedIn + email + cold call)
Pricing: Non-public on the Belkins site; Salesbread reports $5,000–$14,800+/mo across 50+ industries.
Client type: Mid-market and enterprise B2B SaaS, IT, services. 50+ industries served.
Average rating: 5.0 / 5 on Clutch (230+ verified reviews, May 2026); 4.8 / 5 on G2 (200+ reviews).

Belkins has been the #1-ranked appointment setting agency on Clutch for five consecutive years. Operating since 2017, the team has booked over 200,000 appointments and reports a 95% client retention rate. They earned the Clutch Champion Award in 2024.

Best fit for: mid-market and enterprise teams that want a turnkey omnichannel pipeline (LinkedIn + email + calls) and can budget $5k+ per month per pod.

Pros:

  • Highest Clutch rating in the segment with the largest review volume (per Clutch).
  • Multi-channel by default, not LinkedIn-only (per Belkins.io and Built For B2B).
  • Documented case studies with named clients (78 appointments in 6 months for an adtech firm, per Built For B2B).

Cons:

  • Pricing is opaque on the public site — quote-only model (per Salesbread).
  • Higher entry price than LinkedIn-only specialists (per Salesbread comparison).
  • 50+ industries served means less niche depth than vertical-specific agencies (per Callbox review).

Visit Belkins

2. Cleverly

Specialty: LinkedIn-first lead generation for startups and SMBs
Pricing: From $397/mo (self-service) up to $997/mo (managed campaigns), per Salesbread and ConnectSafely.
Client type: Startups, SMBs, agencies, consultants.
Average rating: 4.3 / 5 on Clutch (82 reviews); 4.5 / 5 on G2.

Cleverly is one of the few US LinkedIn outreach agencies with public, accessible entry pricing. They report $312M in pipeline generated and 224,700+ leads delivered across clients, per their own case material (cross-referenced by Salesbread).

Best fit for: founders, SMBs, and consultants who want a “set-it-and-scale-it” managed LinkedIn campaign without committing to enterprise pricing.

Pros:

  • Lowest entry price in the segment ($397/mo, confirmed by 3 independent reviews).
  • Self-service tier available — useful for solo operators (per ConnectSafely).
  • Mature LinkedIn-only operation — single-channel focus rather than spreading thin (per 100Signals).

Cons:

  • 4.3 Clutch rating is below segment leaders — some reviews mention lead quality concerns (per Salesbread).
  • LinkedIn-only — doesn’t include email or cold call channels (per Cleverly.co).
  • Higher-priced managed tier ($997/mo) still cheaper than enterprise alternatives but lacks deep account-based features (per ConnectSafely).

Visit Cleverly

3. CIENCE

Specialty: Outbound SDR-as-a-service with HubSpot partnership
Pricing: Non-public; project-based and SDR-pod model. Salesbread and Cience.com indicate 4–6 figure monthly engagements.
Client type: Mid-market B2B with a HubSpot stack, scale-ups.
Average rating: 4.5 / 5 on Clutch (80+ reviews).

Founded in 2015, CIENCE specializes in inbound and outbound B2B lead generation, curates data-driven lead lists, and offers CRM solutions through its HubSpot partnership. Independent reviews note the agency was at peak Clutch ranking 2-3 years ago and has been catching back up since.

Best fit for: B2B teams using HubSpot that want SDR pods covering LinkedIn + email + outbound calling, with strong CRM integration.

Pros:

  • HubSpot partnership and tight CRM-side integration (per Cience.com and Belkins blog review).
  • Long track record — 10+ years in market (per Cience.com).
  • Custom data-list research baked into engagements (per Salesbread review).

Cons:

  • Independent reviews flag that performance has been catching up vs. competitors recently (per Belkins blog).
  • Pricing opaque — no entry-level public price (per Salesbread).
  • Less LinkedIn-only depth than Cleverly or Salesbread (per Cience.com service breakdown).

Visit CIENCE

4. Martal Group

Specialty: Outsourced SDR teams for SaaS, IT, technology
Pricing: Non-public; multiple reviews place engagements at $4k–$10k/mo per SDR pod.
Client type: SaaS, IT services, B2B tech mid-market.
Average rating: 5.0 / 5 on Clutch (108 reviews); top-10 placement in G2’s lead-gen rankings.

Martal is a North America-based agency providing SDR-as-a-service. The team conducts research-led outreach, combining email, LinkedIn, and phone, and earned the Clutch Champion Award for spring 2024. Cross-referenced positively across Cience.com’s own alternatives list, Belkins.io, and Salesbread.

Best fit for: SaaS and tech companies wanting an outsourced SDR team with vertical experience.

Pros:

  • 5-star Clutch rating with a Champion Award (per Clutch profile and Martal.ca).
  • Tech/SaaS vertical depth (per Salesbread review and Cience.com listing).
  • SDR pod model reduces ramp time vs. hiring in-house (per Belkins.io review).

Cons:

  • Pricing opaque — quote-required (per Cience.com directory).
  • Tech-heavy positioning means less fit for non-tech verticals (per Martal.ca).
  • SDR pod model assumes you have a sales process to plug into — not a fit for very early stage (per Salesbread).

Visit Martal Group

5. Salesbread

Specialty: Hyper-personalized LinkedIn + cold email outreach with SQL guarantee
Pricing: $3,000/mo, no long-term contract, money-back guarantee if <20 SQLs/mo (per Salesbread.com and Built For B2B).
Client type: Founders, B2B SMBs, niche services.
Average rating: Clutch profile sparse — reputation built largely on direct case studies and Built For B2B / 100Signals coverage.

Salesbread runs an “ultra-personalized” LinkedIn + email outreach service with a published reply rate of 19.98% since 2019. They guarantee 20+ SQLs per month or refund — one of the only agencies in the segment with a public guarantee.

Best fit for: B2B SMBs and founders who want a guaranteed-output engagement and prefer ultra-personalized over volume outreach.

Pros:

  • Money-back SQL guarantee — rare in the segment (per Salesbread.com and Built For B2B).
  • Public reply-rate benchmark (19.98%, per Salesbread).
  • Flat $3k/mo pricing — easy to budget (per 100Signals).

Cons:

  • Smaller Clutch footprint than Belkins or Martal (per Clutch).
  • Single price point — no flexible tiers (per Salesbread.com).
  • Personalization-heavy means lower volume than enterprise pods (per 100Signals).

Visit Salesbread

6. Pearl Lemon Leads

Specialty: Multichannel B2B lead gen (LinkedIn, cold email, cold call, ads)
Pricing: From £2,497+ ($3,300+) for cold email and £3,497+ ($4,600+) for multichannel (per Salesbread and Pearl Lemon’s site).
Client type: SMBs and mid-market across multiple verticals.
Average rating: 4.8 / 5 on Clutch parent profile (45–67 reviews depending on profile page); mixed distribution (per Clutch and Trustpilot).

Pearl Lemon Leads is the lead-gen arm of the Pearl Lemon agency group, offering LinkedIn, cold email, cold call, paid ads, and multichannel packages. Reviews are polarized — strong wins reported alongside critical Trustpilot feedback. Sources include Clutch, Salesforge.ai, SalesHive, SoftwareSuggest, and Cience.com directory.

Best fit for: SMBs that want a one-stop shop for outbound and can stomach mixed reviews in exchange for breadth.

Pros:

  • Wide channel coverage in one vendor (per Pearl Lemon site and Salesforge.ai).
  • Lower entry pricing than Belkins or Callbox (per Salesbread comparison).
  • Public minimum project size and hourly rate ($1,000 minimum, $50–$99/hr — per Clutch).

Cons:

  • Mixed reviews — 800 LinkedIn outreaches with 0 conversion reported in one Clutch case (per Clutch profile).
  • Multiple subsidiary brands (Pearl Lemon, Pearl Lemon Leads, Pearl Lemon Leads USA) can confuse the engagement scope (per Pearl Lemon sites).
  • Trustpilot reviews more critical than Clutch (per Trustpilot).

Visit Pearl Lemon Leads

7. Callbox

Specialty: Multi-channel B2B lead gen with ABM focus and cross-border pods
Pricing: $15,000–$30,000 per Campaign Pod (one region/language). Multi-region engagements $45k–$90k. (per Callbox.com pricing references and Salesbread).
Client type: Mid-market and enterprise across SaaS, fintech, healthcare, manufacturing.
Average rating: 4.6 / 5 on Clutch (119 reviews); reviews on G2 and Saleshive.

Callbox has been in the B2B lead-gen market for 20+ years, positioning itself as a multi-channel sales development provider with strong ABM and cross-border capabilities. Public pricing references appear in Callbox’s own pricing-page content cross-checked by Saleshive and Salesbread.

Best fit for: enterprise B2B teams running multi-region campaigns who can absorb $15k+ per pod.

Pros:

  • Cross-border / multi-region capability (NA + UK + APAC) — rare at this maturity (per Callbox.com).
  • 20+ years in market — operational stability (per Belkins blog review).
  • Defined pricing ranges in public references (per Saleshive and Callbox).

Cons:

  • Enterprise-only pricing — not accessible for SMBs (per Saleshive).
  • Less LinkedIn-only depth than Cleverly or Salesbread (per Callbox service pages).
  • 4.6 Clutch rating below Belkins / Martal at the top (per Clutch).

Visit Callbox

8. SocialBloom

Specialty: B2B LinkedIn-first lead generation, SaaS-focused
Pricing: Non-public; references in Cience.com directory and Salesforge.ai place engagements in the $3k–$8k/mo range.
Client type: SaaS startups, mid-market B2B technology.
Average rating: 4.7 / 5 on Clutch (40+ reviews per Clutch profile).

SocialBloom is a smaller US-based LinkedIn-first lead-gen agency with positive coverage in Cience.com’s alternatives directory, Salesforge.ai’s vendor list, and Saleshive. Less press than Belkins or Martal but consistent positive client reviews on Clutch.

Best fit for: SaaS startups and small mid-market teams that want a LinkedIn-only specialist without enterprise pricing.

Pros:

  • LinkedIn-only specialization — focused playbook (per Cience.com directory).
  • SaaS-vertical depth (per Salesforge.ai).
  • Smaller team — direct account access reported in reviews (per Clutch).

Cons:

  • Smaller review pool than top 4 — less data to validate consistency (per Clutch).
  • Pricing opaque (per Cience.com directory).
  • Limited multi-channel coverage — LinkedIn-first means email/calls are add-ons (per Salesforge.ai).

Visit SocialBloom

How to choose: agency, freelancer, or in-house SDR?

Three rough decision rules:

  • Agency makes sense if you have $3k+/mo in budget, a defined ICP, and you want execution off your plate without hiring.
  • Freelance makes sense if you have under $3k/mo or you want hands-on personalization. See our Top freelancers in Paris for cold email and the upcoming Top freelancers in NYC for LinkedIn outreach edition.
  • In-house SDR makes sense if you have a 12+ month horizon and want process and data ownership — but expect $80k–$120k fully loaded for a US SDR + tooling.

Across all three paths, your reply rates depend on data quality more than message quality. That’s where Derrick fits — it cleans your list before any agency or SDR touches it.

LinkedIn outreach agency comparison

Agency Starting price Specialty Channels Best for Clutch rating
Belkins $5,000+/mo Omnichannel appointment setting LinkedIn + Email + Cold call Mid-market / enterprise 5.0 (230+)
Cleverly $397/mo LinkedIn-first managed LinkedIn SMB / startups 4.3 (82)
CIENCE Quote SDR-as-a-service + HubSpot LinkedIn + Email + Phone Mid-market / HubSpot stack 4.5 (80+)
Martal Group $4,000+/mo SDR pods for SaaS / IT LinkedIn + Email + Phone SaaS / tech 5.0 (108)
Salesbread $3,000/mo Hyper-personalized + SQL guarantee LinkedIn + Email Founders / SMBs Limited Clutch volume
Pearl Lemon Leads $3,300+/mo Multi-channel one-stop shop LinkedIn + Email + Calls + Ads SMBs wanting breadth 4.8 (45-67)
Callbox $15,000+/pod Multi-region ABM LinkedIn + Email + Phone Enterprise multi-region 4.6 (119)
SocialBloom $3,000+/mo LinkedIn-only SaaS specialist LinkedIn (+ add-ons) SaaS startups 4.7 (40+)

Why use Derrick before or with a LinkedIn outreach agency

When you pay a LinkedIn outreach agency, you pay for execution. But execution on bad data gives bad results: low connection rate, low reply rate, low SQL throughput. That’s the #1 reason outbound campaigns fail, regardless of the agency.

Derrick solves that part of the problem. From a Sales Nav search, Derrick scrapes the profiles, enriches them with real B2B emails, and gives you a list ready for LinkedIn AND email outreach — useful because most decision-makers reply better to cross-channel than to LinkedIn-only sequences.

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

  • Native LinkedIn / Sales Nav scraping — Chrome extension, no separate scraper to wire up.
  • Profile + company + signals enrichment — current role, headcount, tech stack, funding, hiring signals.
  • B2B email detection from LinkedIn profile — match work email from the LinkedIn URL.
  • Export to Heyreach, LGM, Lemlist, Apollo — feed your agency’s stack directly.

Derrick works natively with LinkedIn and Sales Navigator, used by 31,000+ operators across the US and EU. If you work with an agency, you can share your Derrick workspace (read-only) so they enrich and clean the lists before pushing to sequence. You keep the data, they execute.

Create your free Derrick account — 50 free credits, no card required.
See all plans — starting at $19/mo.

FAQ

How much does a LinkedIn outreach agency cost in the US?
Entry-level managed campaigns start around $397/mo (Cleverly self-service). Mid-market omnichannel pods range $3,000–$8,000/mo. Enterprise multi-region engagements run $15,000–$30,000+ per pod (per Callbox public pricing references).

What’s the difference between a LinkedIn outreach agency and a freelance SDR?
Agencies bring a process, a team, and tooling — useful if you want execution off your plate. Freelancers bring more personalization and lower cost, useful if you have an ICP definition and want hands-on outreach. Threshold: roughly $3k/mo budget. Below that, look at freelance platforms like Malt or Crème de la Crème.

How long until I see results from a LinkedIn outreach agency?
Plan for 4–8 weeks before steady-state SQL flow. Most agencies need a 2–3 week ramp to learn your ICP and get sequences cycling, then 2–4 more weeks to fill the funnel. Salesbread publishes 19.98% reply rate as a benchmark, achieved at month 2+.

How do I evaluate a LinkedIn outreach agency before signing?
Ask for: (1) named client case studies in your vertical, (2) public Clutch or G2 review trail with 50+ reviews, (3) a sample sequence written for your ICP (not a template), (4) data sourcing transparency (where do leads come from? do they own the data?), (5) a clear definition of “qualified meeting” tied to your CRM.

Do I still need a tool like Derrick if I hire an agency?
Yes — and it makes the agency cheaper. Most agencies bill for list-building separately or pad the price. Building your own list with Derrick keeps the data in your hands and lets the agency focus on sequencing. Many of our customers run this exact split.

What’s the highest-rated LinkedIn outreach agency on Clutch?
As of May 2026, Belkins (5.0 / 230+ reviews) and Martal Group (5.0 / 108 reviews) tie at the top with the largest 5-star review pools. Cleverly (4.3 / 82) is the leader in the entry-pricing tier.

Are LinkedIn outreach agencies worth it for early-stage startups?
Below $3k/mo, usually no — early-stage teams get more leverage from a freelance SDR or a founder-led outbound motion with a tool like Derrick. Above $3k/mo and with a defined ICP, an agency starts to pay back.

Conclusion

The US LinkedIn outreach agency market splits into three tiers: enterprise omnichannel (Belkins, Callbox, Martal), mid-market specialists (CIENCE, Salesbread, SocialBloom, Pearl Lemon Leads), and SMB-friendly entry points (Cleverly). Pick the tier that matches your budget and your stage, then verify on Clutch the week before you sign — ratings move.

Whichever path you pick, the agency only executes well on the list you give them. Create your free Derrick account to build that list before signing.

Related reading: Best cold email agencies in the US · Best LinkedIn outreach agencies in France · Best cold email freelancers in Paris

Jonathan Maurin

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