Best cold email agency for B2B companies (2026)
This list ranks eleven B2B cold email agencies by the least a company must pay before it can leave: the published entry price times the minimum term the agency states, plus any published setup fee. Agencies without a published price follow, month-to-month ones first. Prices and terms read 28 October 2026. Sales.co is our own service, so weigh its position with that in mind.
The spread is wide. Sales.co can be stopped after one $2,000 month. LevelUp Leads requires 3 prepaid months from $5,000, so $15,000, and Hypergen's 6-month minimum at $6,500 comes to $39,000. Four agencies publish no price at all.
Want a contact list to email yourself instead? Sales.co also sells one-time email lists by profession for $295.
| # | Agency | Entry price | Minimum term | Paid before you can leave | Stated volume |
|---|---|---|---|---|---|
| 1 | Sales.co | $2,000/mo for up to 10,000 emails | Month-to-month, no setup fee | $2,000 | 10,000, 15,000 or 20,000 emails a month |
| 2 | OutreachBloom | From $2,400/mo | Month to month | $2,400 (month to month) | 10,000 to 100,000 contacts a month |
| 3 | CIENCE | $4,249/mo with one offshore SDR, plus setup | Month to month, one-time setup fee | $4,249 plus a setup fee it does not price | Per SDR, every working day |
| 4 | Belkins | From $5,000 (billing period not stated) | Not stated | $5,000 (term not stated) | 1,500 leads a month |
| 5 | Callbox | About $6,667/mo per pod (estimate) | Not stated ("flexible contract options") | $6,667 (term not stated) | One dedicated SDR per pod |
| 6 | LevelUp Leads | From $5,000, prepaid | 3-month initial commitment, then month-to-month | $15,000 | 460+ emails and 700+ calls a business day (Growth tier) |
| 7 | Hypergen | From $6,500/mo | 6-month minimum | $39,000 | 7,500 prospects a month (Lite) |
| 8 | Cleverly | Not published | Month-to-month, no contracts | Not published | "Thousands of emails monthly" |
| 9 | Leadium | Not published | Month-to-month | Not published | Not stated |
| 10 | SalesHive | Custom quote | Month-to-month, written notice; billing ends after the next month | Not published | 100+, 250+ or 500+ touches a day |
| 11 | Martal Group | Not published (inquire) | 3 or 4-month pilot, then monthly | Not published | Not stated |
By need
| Question | Answer |
|---|---|
| Which agency can I leave after one month at a published price? | Sales.co ($2,000) and CIENCE ($4,249 plus setup) |
| Which one sends the most a month at its entry price? | OutreachBloom (10,000 to 100,000 contacts from $2,400) |
| Which ones lock in several months? | Hypergen (6 months), Martal Group (3 or 4-month pilot), LevelUp Leads (3 months) |
| Who adds SDRs who call? | CIENCE, Callbox, SalesHive, LevelUp Leads |
| Who guarantees meetings? | Belkins (100+ a year at the starter price) |
| Who connects leads straight to my CRM? | Hypergen (direct CRM integration on Lite) |
| Who charges per lead? | Cleverly (Scale plan) |
1. Sales.co
Sales.co commits a B2B company to one month: $2,000 for up to 10,000 emails, with no setup fee and cancel anytime. The 15,000 and 20,000 email plans cost $2,500 and $3,000 a month on the same terms. The service covers the contact data, a written email per prospect, sending domains and reply handling, and goes live within 7 days. It does not guarantee a meeting count; the price buys sending volume. Source: sales.co/pricing.
2. OutreachBloom
OutreachBloom's cold email plan starts at $2,400 a month and covers 10,000 to 100,000 targeted contacts a month, the widest stated volume on this list. It names B2B SaaS and services companies with 10 to 200 employees as its buyers. Its pricing page says "All plans are month to month. Cancel anytime." (read 10 November 2026), so the table counts one month. Source: outreachbloom.com/pricing · Sales.co vs OutreachBloom.
3. CIENCE
CIENCE states month to month terms, so the commitment is one month of its fees: $2,000 for the campaign team, $499 for the graph8 platform and at least $1,750 for one offshore SDR. US or European SDRs cost $3,500 each. A one-time setup fee builds the target list, four campaigns and the email, phone and LinkedIn infrastructure, but its amount is not on the page. SDRs earn a bonus from 60% of their monthly meeting target. Source: cience.com/pricing · Sales.co vs CIENCE.
4. Belkins
Belkins publishes one number, a starter price from $5,000 that it calls the average, with 1,500 leads a month and 100+ guaranteed appointments a year. It states neither the billing period nor a contract term, so the table counts $5,000 once. Larger B2B programs get a custom proposal that factors in company size, market and revenue goals. Source: belkins.io/cold-email-services · Sales.co vs Belkins.
5. Callbox
Callbox estimates $6,667 a month for one campaign pod, built around one dedicated SDR and a campaign manager. More pods target more segments or personas. It describes its contracts as flexible and subscription based but gives no minimum, so the table counts one month at the estimate. The exact price comes after a consultation. Source: callboxinc.com/lead-generation-pricing.
6. LevelUp Leads
LevelUp Leads requires an initial 3-month commitment, paid monthly in advance, on pricing that starts at $5,000. That puts $15,000 down before a B2B company can stop, after which it rolls to month-to-month. Its top tier lists 700+ calls and 460+ emails per business day with two LinkedIn profiles. Source: levelupleads.io/pricing.
7. Hypergen
Hypergen has the longest stated lock-in among agencies that publish a price: a 6-month minimum on Lite, from $6,500 a month. That is $39,000 committed. Lite contacts 7,500 prospects a month and pushes leads into your CRM; Standard contacts 15,000 and is quoted on a call. Source: hypergen.io/pricing · Sales.co vs Hypergen.
8. Cleverly
Cleverly states "Month-to-month, no contracts" on both plans, Growth on a flat retainer and Scale per lead. It does not publish either price, so the commitment cannot be computed. Per-lead pricing suits a B2B team that wants to pay only for results it can count. Source: cleverly.co/cold-email-outreach-agency · Sales.co vs Cleverly.
9. Leadium
Leadium says all of its contracts are month-to-month. It publishes no price; its consultation form asks for a budget starting at $2,500 to $3,500 a month. It runs email, calls, LinkedIn and gifting, and says its clients have raised $4.2 billion in funding. Source: leadium.com/pricing.
10. SalesHive
SalesHive plans are month-to-month on request, but cancellation needs written notice and billing ends at the end of the next month, so a B2B company pays for at least one more month after giving notice. Annual plans lower the monthly rate in exchange for a longer term. Every plan is quoted by SDR location, channel and daily touches. Source: saleshive.com/pricing · Sales.co vs SalesHive.
11. Martal Group
Martal Group starts every engagement with a pilot: 3 months with an onshore team or 4 with a fractional one, followed by a monthly subscription. Pricing is a flat monthly fee, and some plans add a sales commission. No figure is published, so the total commitment is unknown until you inquire. Source: martal.ca/pricing · Martal Group alternatives.
How this list was made
The eleven agencies are the ones B2B buyers name when they search for a cold email agency, plus Callbox and CIENCE, which sell outbound to the same buyers. Each row comes from the agency's own pricing or service page, read 28 October 2026; Martal Group blocks automated readers and was read in a browser.
"Paid before you can leave" multiplies the entry price by the stated minimum term and adds any setup fee the agency prices. Where no term is stated we count one month and say so. Volume is in the unit each agency uses (emails, contacts, prospects, leads or touches), so the column is not a like-for-like comparison.
Related: Best cold email agencies for small companies (ranked by entry price) · Agencies scored on price terms · Month-to-month · No setup fee · Agency cost