Cold email agencies for web agencies: 7 compared

A cold email agency is a team that runs outbound email for you, from building the prospect list to answering replies, and its main advantage is a steady flow of sales conversations without hiring your own sales team.

Most web agencies win work through referrals and inbound leads. When that flow slows down, cold email is a common way to fill the gaps without hiring a sales team.

Running it well takes more than a template and a list, though. Deliverability, targeting and reply handling all need daily attention, and that’s usually the first thing a busy studio drops. This guide compares seven agencies that run cold email for B2B companies. For each one, you’ll see who it suits, what it costs and where the catch is.

How do the cold email agencies compare?

Here’s what usually decides the choice: fit, channels, and what each agency tells you about price and terms.

We checked prices and terms on each agency’s own website in October 2026. They change often, so confirm the exact numbers on a discovery call before you budget.

When does outsourcing cold email make sense for a web agency?

Outsourcing makes sense when you have a clear service and a defined client type, but no time to prospect. It also fits teams that tried cold email in-house and ended up in spam folders.

It makes less sense for a very small studio on a tight budget. Most managed programs cost several thousand dollars a month, so one or two new projects a quarter need to cover the fee.

Running it in-house is a real option, too. You’ll need separate sending domains, a verified prospect list and someone who answers replies every day. Many studios start this way and outsource once they see how much time it eats.

What should you check before hiring a cold email agency?

Five questions on the first call tell you most of what you need to know:

• Deliverability setup. Does the agency send from separate domains, warm them up and monitor them daily? Google’s email sender guidelines require authenticated mail (SPF, DKIM and DMARC for bulk senders), and Yahoo’s sender best practices recommend keeping bulk mail apart from the IPs you use for everyday email.

• Targeting. How is the prospect list built, and can you review it before sending starts?

• Reply handling. Who answers replies, how fast, and how do qualified meetings get handed over to you?

• Contract terms. What’s the minimum term, and how much notice do you need to give?

• Reporting. What do you get each week, and is there a live dashboard?

Which 7 cold email agencies are worth considering?

Here’s each agency in more detail, based on what it says on its own website.

1. OutreachBloom

OutreachBloom runs your whole cold email operation, from list building to reply handling. It builds the prospect list, sets up dedicated sending domains and inboxes, writes personalized outreach and manages every reply.

You approve the messaging before anything goes out, then step in once a qualified conversation is ready. Based in Olympia, Washington, OutreachBloom works mainly with B2B SaaS and services companies of 10 to 200 people. LinkedIn outreach, Reddit marketing and AI SEO are available alongside cold email.

Pricing: on request, on a month-to-month contract with no long-term commitment.

Best for: web agencies selling to B2B clients that want cold email fully handled, with no in-house setup.

Trade-off: it’s built for B2B buyers, so if you mainly sell to consumers or local shops, it’s not the core fit.

2. Belkins

Belkins is a B2B lead generation and appointment-setting agency, with cold email as one of its core services. Every package includes a dedicated account manager and SDR, manual lead research, copywriting, deliverability maintenance and reply handling.

Belkins warms up new mailboxes in small batches. Sending starts on day one and reaches 200+ messages a day in about two weeks, and its SDRs review and answer every reply within 24 hours.

Pricing: the average starter price is from $5,000, with a custom proposal based on your company size and goals. Contract terms aren’t published.

Best for: agencies that want booked meetings, not just leads.

Trade-off: it has the highest published starting price in this list, and you’ll need to ask about contract terms on the first call.

3. Martal Group

Martal Group runs omnichannel outbound across email, LinkedIn and phone. It says it has worked with more than 2,000 B2B brands over more than 15 years, and lists teams in North America, Europe and Latin America.

Campaigns launch within about two weeks. Outreach goes out from separate subdomains or new domains, with rotating mailboxes and warm-up before any sending starts.

Pricing: not published. Its pricing page describes four tiers: a flat monthly fee for lead generation, and a flat fee plus sales commission on the higher tiers.

Best for: agencies that want email, LinkedIn and calls run together by one team.

Trade-off: you start with a 3-month pilot (4 months on the higher tiers) before it switches to a monthly subscription.

4. SalesHive

SalesHive gives you a dedicated SDR team that runs cold calling and cold email on its own platform. Its core SDRs are US-based, offshore calling teams are available as an option, and it reports more than 106,000 qualified meetings booked since 2016.

Plans go from Starter (one SDR, phone only) through Growth (one SDR, phone and email) to Crush (two SDRs, phone and email). Most clients launch within a month of kickoff, typically in about three weeks.

Pricing: custom quote based on team location, channels and volume, with no setup fees, on month-to-month or annual contracts.

Best for: agencies that want phone and email combined, run by a US-based team.

Trade-off: the Starter plan is phone only, so email outreach starts on Growth.

5. Leadium

Leadium assigns US-based SDRs to run personalized cold email, cold calling, LinkedIn prospecting and gifting. Every engagement starts with a strategy call, and then the team builds a custom sales playbook for you.

It connects to your CRM, with HubSpot and Salesforce both supported, and describes more than a decade of outbound experience.

Pricing: $4,000 to $5,000 a month flat for multichannel outreach (email and LinkedIn), or $3,500 for cold calling only, on month-to-month contracts. The range appears on its comparison pages rather than its pricing page.

Best for: agencies that want a known monthly cost and no long-term lock-in.

Trade-off: its pages disagree on whether a small setup fee applies (some say none, others $250 to $500), so confirm it before you sign.

6. CIENCE

CIENCE assigns one SDR to handle phone, email and LinkedIn for your account, so your prospects hear from one person instead of three campaigns. It reports more than 2,500 B2B clients over more than 10 years, and campaigns go live in under 14 days.

One of its case studies covers Grow, a digital agency. CIENCE researched decision-makers, Grow approved each lead before outreach, and the case study reports meetings up at least 150%. The results date from 2017 and 2018, so read them as an example of the workflow rather than a current benchmark.

Pricing: published per component: a monthly team and platform fee, a monthly fee per SDR, a bonus tied to held meetings and a one-time setup fee, on month-to-month terms.

Best for: agencies that want to approve every lead before outreach and pay partly on results.

Trade-off: the meeting-based bonus makes your monthly cost harder to predict.

7. Sopro

Sopro runs managed outreach across email, LinkedIn, display ads and gifting. Every engagement includes audience building and a dedicated account manager, plus a 24/7 reporting portal.

Your campaign can be live in as little as three weeks after the first consultation. Sopro lists design and marketing among the industries it serves, with a dedicated page for each.

Pricing: tailored, starting from about £3K a month (the same page also quotes about $3.8K), with no minimum contract.

Best for: agencies that want email backed by LinkedIn and display ads.

Trade-off: the broader channel mix may be more than a small studio needs for a first campaign.

What happens after cold email lands a new client?

A booked meeting is only the start. A client you won through cold email has never worked with you before, so the first project decides whether they stay, come back and recommend you.

That’s where many studios lose what they just paid for. Feedback arrives by email, chat and blurry phone screenshots, revision rounds drag on, and the launch slips. A smooth review process is part of your sales pipeline, even if nobody calls it that.

It’s the problem we built Ybug to solve. Clients capture a screenshot, mark the area they mean and hit send, and your team gets the page URL, browser and screen size attached automatically. Teams using Ybug as a feedback tool for agencies tell us the same thing: the fewer emails a client has to write during a project, the easier it is to win the next one.

Want the full picture, from first contact to repeat work? Our guide on how to get web design clients and keep them for years covers referrals, SEO, networking and outreach, plus what to do after launch so clients stick around.