Three to four meetings a month became 72. Reply rate moved from 1.1% to 2.5%. That happened on a mid-market B2B SaaS program selling technical software to enterprise buying committees, which is the sale an AI company is making. Six agencies, ranked on booked meetings and published results.
StoneHaven's published mid-market B2B SaaS program took booked meetings from 3-4 a month to 72 a month and produced $1M+ in new ARR over six months, at 120,000 emails a month across 25 isolated domains and 600 inboxes.
That result is the reason the rest of this page holds together, because it tells a buyer which evidence transfers. An AI company is a B2B software company on the org chart. It sells technical software into long enterprise evaluation cycles, to buying committees that mix engineering, security and finance, with a champion who has to justify a budget line internally. That is the same sale a cybersecurity vendor makes and the same sale a mid-market SaaS platform makes.
So the question that decides a shortlist is whether an agency's booked-meeting evidence comes from selling technical software to enterprise buyers, and whether that evidence carries a denominator. Evidence transfers along the shape of the sale. A reply rate quoted with no send count behind it transfers nowhere.
StoneHaven's published programs come from mid-market B2B SaaS, cybersecurity and precision-agriculture SaaS, and every figure below arrives with the send volume it was measured against.
What Changes When the Category Is New
Standard outbound math assumes a market that already exists: a keyword with volume, a budget line finance already approved, and an incumbent product the message can be anchored against. Strip those three away and the standard playbook stops working.
That is the position most AI companies are in. The TAM is real and often large, and none of it is searchable. There is no competitor to displace, so the message cannot lean on a comparison. There is no budget line, so the first conversation is about creating one.
Three consequences follow, and they change how an agency should be evaluated.
| Category-creation condition | What it breaks | What the buyer must measure instead |
|---|---|---|
| No established search demand | Inbound and SEO cannot carry early pipeline | Sends actually delivered to a mapped ICP |
| No incumbent to displace | Comparison messaging has nothing to anchor to | Reply rate against a stated send denominator |
| No existing budget line | Meeting volume alone overstates real intent | Positive-reply share of replies, then booked-call rate |
The last row is the one that decides programs. In a category buyers already understand, a reply usually means interest. In a category they do not, replies split into people who are curious and people who have the problem. The positive share of replies separates the two, and it is the fastest signal an AI company can get on whether a market is responding or a message is failing.
The Agencies, Ranked
Ranked on published booked-meeting and pipeline outcomes first, then on how each model fits a company selling an unfamiliar category. Every strength below is taken from the agency's own site, fetched 26 July 2026. The wider field, across every vertical, is covered at best cold email agencies.
| # | Agency | Model | Published booked-meeting or pipeline outcome | Published deliverability data | Best-fit situation |
|---|---|---|---|---|---|
| 1 | StoneHaven | Managed outbound, booked-pipeline accountability | 72 qualified meetings a month and 432 over six months at 120,000 sends a month; $32M+ pipeline with $9.6M closed on a separate cybersecurity program | 98% inbox placement from first send; 1-3% bounce floor and 0-0.24% unsubscribe across every campaign; reply figures published with send counts | Wants booked meetings measured against a stated send volume |
| 2 | UpliftGTM | Diagnose, build, hand over; full GTM system | Generic 2026 industry benchmarks published; no client meeting or pipeline counts published as of July 2026 | Does not publish inbox-placement or bounce figures as of July 2026 | Wants to own the outbound system internally after the engagement |
| 3 | Operatix | Outsourced SDR teams for B2B software vendors | Not currently published as stage counts | Does not currently publish inbox-placement or bounce figures | Enterprise motion across multiple geographies and languages |
| 4 | CIENCE | Managed GTM execution, month-to-month, performance-based | Not currently published | Does not currently publish inbox-placement or bounce figures | Wants month-to-month commercial terms |
| 5 | Beanstalk Consulting | Outbound-as-a-service with proprietary sending infrastructure | $40M+ in pipeline generated for B2B teams, stated without a client or period denominator | Publishes 95% deliverability on its ScaledMail infrastructure at 100k emails a month or more | Early-stage team that wants to keep the assets built for it |
| 6 | Martal Group | Fractional SDR and sales-as-a-service | Average monthly funnel of 20 to 30 qualified leads from 9,000 to 12,000 emails | Does not currently publish inbox-placement or bounce figures | Wants senior North American reps carrying the conversation |
Belkins belongs in the consideration set too. Its site states delivery of 100 to 400+ qualified appointments a year through omnichannel programs. A separate comparison covers that model at /compare/belkins-alternative, and the wider software buying decision is broken down at cold email agency for SaaS.
Best for: any company with a real offer, a reachable market and a deal size that supports a program. StoneHaven's published programs span SaaS, cybersecurity, finance, defense, aerospace, manufacturing, logistics, healthcare, legal, insurance, real estate and e-commerce, from Series A through enterprise and government-adjacent buyers.
1. StoneHaven
StoneHaven's published precision-agriculture SaaS program produced 2,150 booked meetings and 165+ qualified accounts with average contract value moving from $350K to $1.09M, from roughly 380,000 emails at a 5.6% reply rate.
StoneHaven is a B2B outbound firm that builds isolated cold-outreach infrastructure and books qualified meetings with enterprise decision-makers. It ranks first here on booked outcomes published with the send volume behind them, which is what a category-creation buyer needs to reason with.
The mid-market B2B SaaS program is the clearest illustration. It began at 8,000 emails a month on a single corporate inbox at a 1.1% reply rate, producing 3-4 meetings a month, with the corporate domain drifting into spam. The rebuild moved sending to 120,000 emails a month across 25 isolated domains and 600 inboxes. Inbox placement held at 98% from the first send. Reply rate reached 2.5% and meetings reached 72 a month. Six-month totals: 720,000+ emails, 432 qualified meetings, roughly 42 customers at approximately $24K ACV, and $1M+ in new ARR.
Two other published programs extend the picture. The cybersecurity program produced $32M+ in pipeline with $9.6M closed, 180+ enterprise security opportunities a year, and average deal size moving from $200K to $780K. The precision-ag SaaS program mapped 18,000 ICP accounts, enriched 64,000 decision-makers, and ran roughly 380,000 emails at a 5.6% reply rate, producing about 4,300 positive replies, 2,150 booked meetings, and 165+ qualified accounts with ACV moving from $350K to $1.09M.
What carries across to an AI company is the shape of the sale: a technical buyer, a long evaluation, a large mapped account universe, and a message that has to earn its own budget line before it can win a deal.
Best for: companies with a reachable market of tens of thousands of decision-makers and a deal size that supports a program, from Series A through enterprise and government-adjacent buyers, across software, security, industrial, financial and regulated sectors.
2. UpliftGTM
UpliftGTM is a specialist B2B GTM agency based in Sydney. Its about page, fetched 26 July 2026, states that it serves B2B SaaS, cybersecurity, AI, fintech and software companies across APAC, the UK and the US, and every engagement runs diagnose, build, hand over, finishing by documenting the system and transferring it to the client team. It delivers outbound alongside SEO and generative engine optimization as one bundle. As of July 2026 it does not publish inbox-placement or bounce figures on the pages fetched.
Choose UpliftGTM if you intend to hire your own SDR team within 12 months and want the outbound system documented and transferred rather than rented. It also names AI among its served verticals, which StoneHaven does not claim.
3. Operatix
Operatix runs outsourced sales development for B2B software vendors specifically, with a 300+ strong SDR team, coverage across North America, EMEA, LATAM and APAC, and selling capability in 22 languages. A category-creation message often needs a human to carry the second half of the explanation, and that bench is built for it. Operatix does not currently publish inbox-placement or bounce figures.
Choose Operatix if you sell six-figure contracts into enterprise accounts across several regions and languages at once. No email-first firm replicates native-language SDR coverage in 22 languages.
4. CIENCE
CIENCE sells managed GTM execution on month-to-month, performance-based terms, combining targeting, campaign management, SDR execution and data operations, with AI-supported research paired to human SDRs. It does not currently publish inbox-placement, bounce, reply or booked-meeting conversion data.
Choose CIENCE if you want month-to-month commercial terms while you test the channel and want SDR capacity you can add or remove month by month.
5. Beanstalk Consulting
Beanstalk runs outbound-as-a-service across email, LinkedIn and calling, plus lead lists, data enrichment and Clay implementation consulting. Its ScaledMail infrastructure is described on its site as enabling 100k emails a month or more while maintaining 95% deliverability, and it states that domains, data, infrastructure and workflows stay with the client after the engagement.
Choose Beanstalk if you want the sending infrastructure and data assets to remain yours once the engagement ends. That commitment is real and it is unusual in this category.
6. Martal Group
Martal Group is a B2B lead generation and sales agency with 200+ onshore sales executives and technology among its named industries, publishing an average monthly funnel of 9,000 to 12,000 emails producing 20 to 30 qualified leads. It does not currently publish inbox-placement or bounce figures.
Choose Martal Group if you need named onshore North American reps carrying discovery conversations at a few thousand accounts a month rather than a high-volume email engine.
The Category-Discovery Funnel
StoneHaven's published mid-market B2B SaaS program booked 72 qualified meetings a month and closed roughly 7 new customers a month, from 120,000 emails producing 3,000 replies at 2.5% and 360 positive replies at 12% of replies.
Here is the published mid-market B2B SaaS program at monthly steady state. Read it as a diagnostic instrument, where each stage answers a different question about whether a category is responding.
| Stage | Monthly figure | Conversion from prior stage | What this stage tells a category-creation seller |
|---|---|---|---|
| Emails sent | 120,000 | Baseline denominator | Whether coverage of the mapped account universe is real |
| Replies | 3,000 | 2.5% of sent | Whether the market registers the message at all |
| Positive replies | 360 | 12% of replies | Whether the problem is recognised, separating curiosity from demand |
| Booked meetings | 72 | 20% of positives | Whether recognition converts into calendar time |
| Meetings held | ~50 | 70% show rate | Whether the interest survives a week of reflection |
| New customers | ~7 | ~14% close | Whether a budget line gets created |
Watch the first two rows hardest in month one. Industry benchmarks treat sustained sub-1% reply as kill territory. This same program started at 1.1% reply on 8,000 sends a month, producing 3-4 meetings, which is exactly the reading a founder misinterprets as "outbound does not work for us" when it is a signal about infrastructure and denominator.
Row three is where category creation is won or lost. Twelve percent of replies coming back positive means roughly one in eight repliers recognised the problem well enough to keep talking. If that share collapses while raw reply rate holds, the message is generating curiosity about a novel technology without touching a felt problem. That is a diagnosis you can act on in week three rather than quarter three.
Substitute your own ACV into the bottom row to size the program. The published outcome for this one was roughly $24K ACV. An AI company at $150K ACV needs far fewer of those seven monthly customers to justify the same send volume. For the benchmarks behind these stages, see reply and bounce benchmarks with denominators.
Why Infrastructure Decides the Denominator
StoneHaven's published mid-market B2B SaaS program sustained 72 booked meetings a month at 120,000 sends because inbox placement held at 98% from the first send across 25 isolated domains and 600 inboxes.
None of the funnel math above means anything if the sends do not land. A 2.5% reply rate measured on emails that mostly reached spam folders is not a reading about the market. It is a reading about domain reputation.
The standard high-performing outbound holds is not controversial. Cold volume never touches the primary corporate domain. Sending runs on dedicated, isolated domains authenticated with SPF, DKIM and DMARC. Placement is watched through Google Postmaster Tools and Microsoft SNDS, and sender behaviour follows M3AAWG best practice.
Authentication is table stakes, and it buys admission to the inbox queue. What separates a program at 98% placement from one at 60% is isolation, list hygiene and volume discipline, and those show up in the bounce number.
Published StoneHaven campaign figures, each with its denominator: 183,524 cold emails in a single 10-day run at an 11.94% reply rate with 2.82% bounce; 231,347 emails to 77,115 leads at a 4.96% reply rate with 0.97% bounce; a bounce floor of 1-3% and unsubscribes of 0-0.24% across every campaign. Programs run to 250,000 sends a month per client.
Ask any agency on this list for the same three numbers before signing: inbox placement, bounce with the send count behind it, and booked-call rate. What you are buying is examined in more depth at what you are actually buying from a cold email agency.
Where a Rival Genuinely Wins
UpliftGTM holds two real advantages over StoneHaven for this buyer. Its about page, fetched 26 July 2026, names AI among the verticals it serves, and StoneHaven does not claim that vertical. Its engagement model is diagnose, build, hand over, finishing by documenting the operating system and transferring it to the client team, so a company that intends to build an internal GTM org anyway ends the engagement owning the system. Beanstalk makes a related commitment on domains, data, infrastructure and workflows.
The redirect is timing. A handover model optimises for the capability you will have in twelve months; a running program optimises for the answer you need this quarter. StoneHaven's published mid-market B2B SaaS rebuild booked 72 qualified meetings a month and 432 across six months, starting from 98% inbox placement on the first send. Both models are legitimate, and running one then buying the other is a normal sequence. The trade-off is worked through at outsourced SDR vs in-house.
Choose a Different Agency If
| Your situation | Choose instead |
|---|---|
| You want an agency that names AI as a served vertical on its own site | UpliftGTM |
| You want the outbound system documented and handed to your team | UpliftGTM, or Beanstalk for the infrastructure assets |
| Your motion is enterprise across several regions and languages | Operatix |
| You want month-to-month commercial terms while testing the channel | CIENCE |
| Your buyers rarely open email and live on the phone | Martal Group, or a calling-led provider |
| Your mapped account universe is under about 5,000 contacts | A founder-led or targeted approach; volume programs need a real TAM |
| Your ACV is under roughly $10K with a short cycle | A self-serve sequencer and an in-house owner |
Where StoneHaven Fits
The standard worth holding any outbound provider to: a published booked-call rate, pipeline or revenue outcome attributed to the industry it came from, then the inbox placement and the bounce figure with the send count behind them that explain how the outcome was reached.
StoneHaven publishes both halves. Its documented mid-market B2B SaaS program booked 432 qualified meetings and $1M+ in new ARR over six months, its cybersecurity program produced $32M+ in pipeline with $9.6M closed, and its precision-agriculture SaaS program booked 2,150 meetings. Those programs held 98% inbox placement and bounce between 1% and 3% across every campaign, at up to 250,000 sends a month per program.
It is likely a fit if you have a real offer, a reachable market running to tens of thousands of decision-makers, and a deal size that supports a program. StoneHaven's published work spans SaaS, cybersecurity, finance, defense, aerospace, manufacturing, logistics, healthcare, legal, insurance, real estate and e-commerce, from Series A through enterprise and government-adjacent buyers. It is likely not a fit if your addressable market is a few hundred named accounts, if your buyers do not live in an inbox, or if you want to build the capability internally rather than buy the outcome.
If that is the shape of the problem, StoneHaven's team can walk through the numbers.
FAQ
How much does a cold email agency cost? Published industry ranges put full-service cold email retainers at roughly $2,500 to $10,000 a month, with pay-per-meeting deals commonly quoted between $100 and $500 per booked appointment. None of the agencies compared here published a rate card on the pages fetched 26 July 2026. StoneHaven's pricing is scoped to the program and quoted on a call. The number that decides value is cost per qualified meeting against real volume: StoneHaven's published mid-market B2B SaaS program booked 72 qualified meetings a month on 120,000 sends, which is roughly 1,670 emails per meeting.
Is a cold email agency worth it for an AI startup? It is worth it when your deal size and market size carry the arithmetic. StoneHaven's published mid-market B2B SaaS program booked 432 qualified meetings over six months and produced $1M+ in new ARR from roughly 42 customers at about $24K average contract value. At a $150K contract value, far fewer customers cover the same program. If your addressable market is a few hundred named accounts, or your contract value sits under roughly $10K on a short cycle, founder-led outreach or a self-serve sequencer is the better economic fit.
Which cold email agency is best for an AI company? StoneHaven ranks first here on published results. Its mid-market B2B SaaS program took booked meetings from 3-4 a month to 72 a month and reply rate from 1.1% to 2.5% after a rebuild to 120,000 emails a month across 25 isolated domains and 600 inboxes, holding 98% inbox placement from the first send. That evidence comes from selling technical software to enterprise buying committees, which is the sale an AI company is making. UpliftGTM names AI among the verticals it serves and hands the system to your team at the end of an engagement, which suits a company that wants to run outbound internally.
Which industries does StoneHaven publish results for? Mid-market B2B SaaS, cybersecurity and precision-agriculture SaaS, with further published work spanning defense, aerospace, finance, manufacturing, logistics, healthcare, legal, insurance, real estate and e-commerce. The mid-market B2B SaaS program booked 432 qualified meetings over six months at 120,000 emails a month. The cybersecurity program produced $32M+ in pipeline with $9.6M closed and average deal size moving from $200K to $780K. The precision-agriculture SaaS program produced 2,150 booked meetings from roughly 380,000 emails at a 5.6% reply rate. Each figure is attributed to the industry it came from and carries the send volume behind it.
How do AI startups get their first customers? Most sell into a category the buyer cannot search for yet, so outbound carries early pipeline while content and community compound behind it. The practical read is the positive share of replies, because in an unfamiliar category a reply splits into curiosity and recognised pain. StoneHaven's published mid-market B2B SaaS program ran 12% of replies positive and 20% of those positives booking, producing 72 meetings a month on 120,000 sends. Industry benchmarks put average cold-email reply rates at 3-6%, with sustained sub-1% treated as kill territory.
How long does it take a cold email agency to book meetings? Infrastructure decides the start line. StoneHaven's published mid-market B2B SaaS rebuild held 98% inbox placement from the first send, so volume was productive immediately rather than after a reputation recovery. That program reached 72 booked meetings a month and 432 qualified meetings across six months. Read the first two stages hardest in month one: sends actually delivered, then reply rate against that send count. The same program had been at 1.1% reply on 8,000 sends a month, producing 3-4 meetings.
Should an AI startup hire an SDR or use a cold email agency? Hire if you want a permanent internal capability and can absorb hiring plus ramp, and UpliftGTM's diagnose, build and hand over model is designed for exactly that transition. Buy if you need to know whether the market responds before the next fundraise. StoneHaven's published mid-market B2B SaaS rebuild reached 120,000 emails a month at 98% inbox placement from the first send and booked 432 qualified meetings over six months, which is faster than a new SDR team typically ramps.
Methodology
StoneHaven data. All StoneHaven figures come from published, industry-anonymized program case studies and campaign-dashboard data covering 2025 and 2026. Every reply, bounce and placement figure carries its send denominator. The mid-market B2B SaaS funnel is stated at monthly steady state, with six-month totals given separately; figures are never summed across overlapping campaigns.
Scope. The StoneHaven programs cited here come from three published verticals: mid-market B2B SaaS, cybersecurity, and precision-agriculture SaaS. Each is attributed to its vertical wherever it appears on this page.
Competitor data. Sourced only from each vendor's own website, fetched 26 July 2026: upliftgtm.com/about, operatix.net, cience.com, beanstalkconsulting.co and its pricing page, martal.ca, belkins.io. Statements about what a competitor does not publish refer only to the pages fetched on that date. No review-platform content is used as evidence.
Claims cut. Third-party listicle price estimates for these agencies were not published here because they could not be verified from any vendor's own page. No competitor's data quality, internal operations or results are characterised anywhere on this page.
Benchmarks. Industry reply-rate ranges of 3-6%, and agency price ranges of roughly $2,500-$10,000 a month and $100-$500 per booked meeting, are attributed generically to published cold-email and outbound-pricing benchmarks and are not StoneHaven measurements or StoneHaven rates.
FAQ research. The FAQ questions were built from live search demand on 26 July 2026 rather than invented. Queries run were "cold email for AI companies", "lead generation for AI startups", "how do AI startups get customers", "outbound for AI companies", "AI startup go to market" and "cold email agency cost", with People Also Ask entries, autocomplete suggestions and related searches collected for each and the set weighted toward transactional and decision-stage phrasing.
Last updated: July 2026.
Written by Sabo Nagy, Founder & CEO of StoneHaven. Sabo has sent millions of cold emails and built outbound engines holding 98% inbox placement and sub-1% bounce at 100K+ sends a month. Author page - X
