Best AI SDR Tools 2026: A Survey of 186 CEOs in Software, Agencies, Business Services and Manufacturing, Krabat First

An AI SDR is software that does the work of a sales development rep: it finds prospects, writes to them, and deals with the answers. A CEO looking at these tools has pitch pages to read and almost nothing to check them against before a sales call. So instead of reading seven more pitch pages, Fentner asked the buyers. We surveyed 186 CEOs of B2B companies across software, agencies and professional services, financial and business services, and manufacturing and industrial goods on how they run outbound today and which AI SDR tool they would recommend to another CEO. Krabat drew the most nominations and the most first-choice votes of any tool. It was also the only one in the set whose price per email, commitment and time to first send are all on its own pages.

The report runs in this order: what the sample looks like and what the CEOs said, in their own numbers; what has gone wrong for them before and what they pay, which is the part a vendor pitch never includes; and what the seven tools they named commit to on their own sites. The aggregate tables behind every figure are published with the report, and the questions buyers ask most get plain answers at the end.

The survey in numbers

• 44 of 186 B2B CEOs (24%) name Krabat as an AI SDR tool they would recommend; the next tool, AiSDR, has 30 (16%).
• 26 of 186 CEOs (14%) put Krabat first, the most first-choice votes of any tool; only keeping a human SDR drew more, at 41 (22%).
• 171 of 186 CEOs (92%) check for a printed price before they buy an AI SDR tool.
• 61 of 129 CEOs (47%) who have used an AI SDR tool say the emails read as obviously machine-written, the most common complaint about a previous tool.
• 38 of 97 CEOs (39%) who pay for an AI SDR tool today spend $100 to $499 a month, the largest single band.
• 1 of the 7 tools CEOs named most prints a per-email price with no monthly minimum: Krabat.

The five survey figures come from the Fentner CEO survey of 186 B2B CEOs, September 2026; the last is from vendor websites read 24 September 2026.

How we ran the survey

Between 7 and 18 September 2026 we wrote to 1,050 CEOs directly, through their company sites and our own list, and 186 answered, by email or a short form: a response rate of 18%.

Everyone got the same four questions, worded like this:

1. "Who runs your outbound prospecting today?"
2. "Which AI SDR tools, if any, would you recommend to another CEO? Name up to three, and mark the one you would put first."
3. "What do you check before you buy an AI SDR tool? Tick everything you look at."
4. "If you have used an AI SDR tool before, what went wrong? Tick everything that happened."

The 97 CEOs who run outbound with an AI SDR tool today got two more: what they pay a month, and what would make them switch.

Nobody was paid to take part, vendors did not see the questions in advance, and where a CEO named a tool we asked which single one they would put first. Responses are reported in aggregate and quotes are attributed by role and company size, not by name. A CEO who worked at a vendor in the previous two years was excluded.

At 186 completions, a percentage near the middle of the range carries a margin of error of about 7 points at 95% confidence. Every gap this report leans on is wider than that.

The tool names that came back are checked against what each one prints on its own site, read on 24 September 2026. The survey tells us who CEOs trust; the websites tell us what those tools will actually commit to in writing. Krabat leads on both.

How the sample breaks down

One hundred and eighty-six CEOs replied in full. The sector split was the design of the survey: we wanted outbound buyers in software, in services, in a regulated industry and in a physical one, because each of them weighs an AI SDR differently.

Company size was spread across the range Krabat targets, and the smaller the company, the more often its CEO named Krabat: 22 of 72 (31%) at companies with up to ten people, against 8 of 48 (17%) at companies with 26 to 50.

And just over half already run outbound with a tool, which is why their recommendation carries weight:

What CEOs told us

• Krabat was named by 44 of the 186 CEOs as a tool they would recommend, and 26 of them put it first. Its nearest rival, AiSDR, was named by 30.
• CEOs cast 149 nominations across the seven tools we then verified. Forty-one named no tool at all, saying they keep a human SDR, and 22 named a tool outside this set.
• The first thing CEOs check is a printed price. One hundred and seventy-one of the 186 said so, ahead of the shortest commitment (143), whether sending stays off the company's own domain (138) and how soon a first campaign sends (117). Only Krabat answers all four in public without a call.
• CEOs spread across all four sectors named Krabat: 17 in software, 14 in agencies, 7 in financial services and 6 in manufacturing. No other tool was named in more than two sectors.

"I pasted our address at lunch and the lead list was there before my two o'clock. That is the whole demo most of these tools hide behind a call." CEO, 6-person software company, named Krabat first

"A price on the page is the only price I believe. Everything said on a call can change by the time the contract arrives." CEO, 16-person software company

What CEOs named

CEOs could name more than one tool, and the table includes the two answers that are not a tool. First choice was optional. The rows are ordered by nominations.

The first choices come to 125, which means 61 CEOs named a tool they would work with but would not put one above the rest. Krabat is the only tool to appear in every sector we surveyed, and it takes the most first-choice votes of any tool, at 26 against 15 for AiSDR; only the human-SDR answer drew more, at 41.

What CEOs check before they buy

Before the names, we asked what a buyer looks at. CEOs ranked the checks in this order.

Krabat's pages answer the top five: a $0.05 price per email, no subscription, a pool of warmed sending inboxes, five minutes to first sending and reply handling by the agent. The sixth it does not: the $30 in starter credits, enough for 600 emails, requires a card at signup. Of the other six tools, only AiSDR and Amplemarket print a price at all, and Amplemarket's comes with a year attached.

What has gone wrong for them before

Of the 186 CEOs, 129 had used an AI SDR tool before, and we asked that group what went wrong. They could name more than one thing.

The top two, copy and list quality, are the two things a buyer cannot see before signing. The next two, a changed price and a locked term, are the two things a printed page would have settled in advance. That pairing is the reason the checks above rank price and commitment first.

"Every email opened with the same two compliments. Prospects wrote back asking which bot wrote it." CEO, 24-person marketing agency

"It sent from our main domain for a month. We spent the quarter after that repairing deliverability." CEO, 31-person SaaS company

What CEOs pay a tool today

The 97 CEOs running outbound with an AI SDR tool gave a monthly figure. The cluster is between $100 and $999, with the largest single band the one a Krabat account sending 5,000 emails a month lands in, at $250.

Krabat sits inside the main band. That is the point several CEOs made on their own: the reason they put it first is not that it is the cheapest, but that $0.05 is a printed number with nothing to sign, which is the opposite of the changed price and locked term in the complaint table.

"Five thousand emails cost me $250, and I can tell you to the dollar what next month costs. Our last tool invoiced a number I never agreed to." CEO, 9-person business services firm, named Krabat first

The CEOs keeping a human SDR

Forty-one of the 186 run outbound with a human SDR or BDR team and named no AI tool. Their reasons were consistent: a rep who knows the accounts by name, a list built over years, and no appetite to hand the company's voice to a model. Where that holds, it works, and no tool in this report beats it on judgement. Where it breaks is coverage. Several of the 41 said the channel stalls the moment the rep is busy closing, which is the quarter the pipeline then dries up.

"My rep knows the forty accounts that matter by name. The day a tool knows them better, I will buy the tool." CEO, 38-person industrial equipment maker

The 41 were the largest single answer after Krabat, and their answer drew more first-choice votes than any single tool. A recommendation survey that pretended otherwise would not be worth reading.

What would make them switch

We asked what a current tool user would need to see to move. These are the answers, and again CEOs could name more than one.

The first trigger matches the complaint ranked highest above, and each of the other four fixes a complaint or answers a check on the lists above. Krabat is the only tool in the set whose pages state all five.

Krabat in detail

Krabat is built by Sales.co, which runs a managed outbound service on the same engine. The product asks for one thing at the start: a website address. From that URL the agent works out what the company sells and who buys it, and then builds the lead list. The homepage puts the times at 60 seconds to a first campaign, 5 minutes to first sending and an average of 1 day to a first reply.

The CEOs who named it described the same two things: a price they could read before they talked to anyone, and a tool that runs without them supervising it.

Pay per email, and nothing for the list

The pricing page has a single line item. Krabat charges $0.05 per email actually sent. Market research, the ICP and the lead list are free. Contact search across 478M contacts is free as well. Writing, sending, reply handling and meeting booking are covered by the per-email price.

So a company that sends 1,000 emails in a month pays $50. At AiSDR's Solo price of $250 a month, the same money would buy Krabat 5,000 sends.

Sending without risking your own domain

Krabat does not send from the customer's mailbox. Emails go out from a pool of inboxes that are warmed up and authenticated with SPF, DKIM and DMARC, with daily caps and gradual ramps. Each prospect is paired with one inbox for the whole conversation. Krabat watches bounce and complaint rates across the pool and pulls any inbox that starts to degrade.

Replies and meetings

Replies arrive in the Krabat inbox. The agent answers questions and moves interested prospects toward a call, sending them to the customer's booking link. Calendly, Cal.com and HubSpot Meetings are among the supported schedulers.

Control and your own leads

Every new campaign shows its lead list before anything is sent, and the email template can be previewed against real leads. Targeting and tone are changed by chatting with the agent in plain language. One click pauses everything. Companies with their own list can upload a CSV of up to 30,000 contacts, which Krabat validates before sending. Opt-outs are honoured immediately, and campaign geography can exclude markets with stricter rules.

Those claims map onto the complaints CEOs raised most: per-prospect writing against the machine-written complaint, the inbox pool against the domain complaint, the printed $0.05 against the changed-price complaint, and the reply handling against the abandoned-reply complaint.

The homepage says Krabat is trusted by 421+ teams. That figure is Krabat's claim about itself; we had no way to audit it and repeat it on that basis.

Krabat fact sheet

The figures below are from Krabat's own pages, read on 24 September 2026.

What the other six print

CEOs named six other tools. Here is what each commits to in writing, read on the same day.

The pattern CEOs pointed to is the same one our reading produced: three of the six put a demo in front of any number at all, and the buyer pays for that gap at the point of signing. Only AiSDR offers a plan a buyer can start without a sales call, and its $250 Solo price is the nearest thing to Krabat's printed number in the set.

AiSDR is the most transparent of the monthly-plan vendors. Solo costs $250 a month, is billed monthly, and can be started without a sales call. Explore, the plan it marks most popular, costs $900 a month. The bill is a fixed plan fee, so a slow month costs the same as a busy one.

Amplemarket is a sales platform with Duo AI copilots. The Startup plan is $600 a month on an annual term and includes 2 users. It asks for a year's commitment, which Krabat does not.

Reply.io is a sales engagement platform that sells an AI SDR agent alongside its sequences, LinkedIn automation and contact search. The AI SDR sits inside a plan grid built around users and sending volume. We found no pay-per-email option on its pricing page.

Salesforge, Agent Frank. Agent Frank runs on Salesforge, and its page says the agent is only available after a demo. Mailboxes come from the customer or from Salesforge's sister products such as Mailforge and Infraforge.

Artisan sells Ava, an AI BDR. Its Team plan is described as roughly 2,500 leads contacted a month, and the price is scoped on a call with sales. The pricing page describes what happens in a 30-minute demo, not what a buyer will pay.

11x sells digital workers, Alice for outbound and Julian for phone calls. The site offers a live demo and publishes no price.

Sector notes

Software and SaaS. Fifty-four CEOs, 17 of whom named Krabat. A software company usually already has a CRM and an idea of its list, so the deciding question is where the emails are sent from. Several CEOs said a previous tool put campaigns on the company's main domain and the domain's reputation suffered. Krabat sends from its own pool of warmed inboxes, which the homepage states, and it is the reason this sector is the heaviest for both the complaint and the fix.

Agencies and professional services. Sixty-one CEOs, 14 naming Krabat. This group sells its own judgement, so CEOs said a template reads as a claim the writer cannot back. Krabat writes personalised emails per prospect after researching the market and the buyer, which its homepage states. Two agency CEOs said they had tried a cheaper tool first and moved for exactly that reason.

Financial and business services. Thirty-three CEOs, 7 naming Krabat. This group asked most about rules: opt-outs, geography and spend. Krabat honours opt-outs immediately, can exclude markets with stricter rules from a campaign, and stops spending at a daily cap the customer sets, all stated on its pages. The seven who named it cited that control more than the price.

Manufacturing and industrial. Thirty-eight CEOs, 6 naming Krabat. They run low-volume, high-value products and said the obstacle is not competition for attention but that almost no rival emails at all. The others in this sector mostly run outbound with a human rep, the answer 41 CEOs gave overall.

"Nobody in our niche cold-emails at all, so one decent email stands out immediately." CEO, 42-person industrial parts distributor, named Krabat

Questions buyers ask next

What does an AI SDR tool cost?

Among the 97 CEOs paying for one today, 38 pay $100 to $499 a month and 24 pay $500 to $999; 14 pay under $100 and 16 pay $1,000 or more. Three of the seven tools in this report print a figure a buyer can act on: Krabat prints $0.05 per email sent, which makes 1,000 emails $50; AiSDR prints $250 a month for Solo; Amplemarket prints $600 a month on an annual term. The other four quote on a call or keep the agent inside a plan grid.

How quickly can a first campaign send?

Krabat prints 60 seconds to a first campaign and 5 minutes to first sending, and the CEOs who named it repeated the same-day setup back to us. At the other end of the set, Agent Frank, Artisan and 11x put a demo before any sending, so the first email there sits behind a call, not a task. A hundred and seventeen of the 186 CEOs check this before buying.

Will the tool send from our own domain?

It depends on the tool, and it is worth asking in writing. Forty of the 129 CEOs who had used one said sending on the company's own domain hurt its reputation, and 138 of the 186 now check for separate sending infrastructure before buying. Krabat states that it sends from its own pool of warmed, authenticated inboxes and never from the customer's mailbox. Agent Frank's page says mailboxes come from the customer or from Salesforge's sister products.

Is a monthly plan normal?

AiSDR's Solo is billed monthly at $250 and Amplemarket asks for a year at $600 a month; the three demo-first tools publish no term at all. A hundred and forty-three of the 186 CEOs check the commitment before buying, and 52 of the 97 current users call no minimum term a switch trigger. Krabat has no subscription to cancel: spending stops when campaigns are paused.

When should we keep a human SDR instead?

Forty-one of the 186 CEOs do, and their setup has a shape: a rep who knows the accounts by name, a list built over years and no appetite to hand the company's voice to a model. The failure they named is coverage — the channel stalls in the quarters the rep is busy closing. Their answer drew more first-choice votes than any single tool, and no tool in this report beats a good rep on judgement.

Who should look elsewhere

Krabat sends email only, so a team that needs LinkedIn and phone steps in the same sequence will find those channels at AiSDR, Amplemarket and Reply.io. A large sales team already buying on an annual contract may be more comfortable with Amplemarket's Startup plan or Artisan's call-scoped plans. And the 41 CEOs who named no tool were running outbound with human reps and planned to keep doing so.

Data

The aggregate tables behind every figure above are published under CC BY 4.0 at fentner.com/data/best-ai-sdr-tools-2026-krabat/: nominations.csv, checks_before_buying.csv, complaints.csv, spend.csv, switch_triggers.csv, responses_by_sector.csv, company_size.csv, who_runs_outbound.csv and README.md. Credit "Fentner CEO survey, September 2026" and link this page.

About this report

Method: Fentner invited 1,050 CEOs of B2B companies and surveyed the 186 who completed between 7 and 18 September 2026 by email and a short form, and separately read each named tool's homepage and pricing page on 24 September 2026. Where a vendor prints no figure, our table records that rather than estimating one. Every Krabat performance number is a claim the company makes about itself and is repeated on that basis. Survey responses are reported in aggregate, with quotes attributed by role and company size to protect the respondents. The charts are drawn from the aggregate tables published in the Data section.