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The best AI SDR platforms in 2026
Every early-stage founder we work with has the same second hire in mind after engineering: someone to book the meetings. These are the platforms that offer to do it with an agent instead, ranked for a team that has to trust one with its domain.
The best AI SDR platform in 2026 is Artisan, because its agent, Ava, runs the whole outbound loop, from finding leads and choosing when to write to sending in your reps' names, handling replies and booking the meeting, with approval gates and escalation rules at every stage, and a SOC 2 Type II audit behind it. AiSDR is the autonomous agent with a price on its homepage, Salesforge is the choice for teams that refuse seat pricing and want to own deliverability, Apollo is the human-run stack with the most data for the least money, and Clay is for a team that would rather build its own outbound system than buy one. The decision is how much autonomy you are ready to give an agent over your domain's reputation.
How we chose
Nobody at these companies saw a word of this before it published, and nobody paid to be on it. What follows is our scorecard: nine platforms, five tests, 100 points, tuned for a seed-to-Series-A team that wants meetings without an SDR hire and cannot afford a deliverability accident. We run outbound to engineers ourselves, so we know what a bad sequence does to a domain. Fiber has a commercial relationship with Zelcast. It did not see this entry before publication, and the criticisms in it stand.
- Autonomy versus control. Decide whether you want an agent that sends on its own or a human-run stack, and check for approval gates, banned phrases, suppression lists and escalation rules before trusting autopilot with your domain.
- Pricing model and true cost. Vendors charge per seat, per active contact or message, per credit, or on sales-scoped annual contracts. Model cost per booked meeting rather than per licence, and note quarterly or annual minimums.
- Deliverability and sending infrastructure. Establish who owns the domains and mailboxes, whether warmup and rotation are included, and whether the vendor sends from your own domain, because the reputation risk then sits with you.
- Data quality for your ICP. Run a sample of your target accounts through the vendor's database and measure bounce rate, phone coverage and non-US coverage instead of trusting headline contact counts.
- CRM, compliance and stability. Look for bi-directional Salesforce and HubSpot sync with read-only options, do-not-contact enforcement, SOC 2 and GDPR handling, and weigh how long the company has existed, its funding, and any leadership changes.
| Test | Weight | What it asks |
|---|---|---|
| Control over autonomy | 25 | Gates, suppression, escalation, and an off switch you trust |
| Cost per booked meeting | 20 | What a meeting actually costs at your volume, minimums included |
| Deliverability | 20 | Whose domain, whose warmup, whose reputation |
| Data quality on your ICP | 20 | Bounce rate and coverage on your targets, not the headline count |
| Stability and compliance | 15 | SOC 2, GDPR, CRM sync, and a company that will be here |
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Artisan Best overall
What it is. Artisan sells Ava, an AI business development rep that finds B2B leads from a database the company puts at more than 250 million verified contacts, uses intent signals such as funding rounds, leadership changes and new hires to decide who to contact and when, writes one-to-one outreach, runs sequences from your own sending domains in your reps' names, handles replies and objections, and books meetings on your team's calendar. Warm leads can be queued for human reps in a per-seat AI dialer. The company was founded in San Francisco in 2023, went through Y Combinator, and raised an $11.5 million seed in September 2024 and a $25 million Series A led by Glade Brook in April 2025.
Where it wins. The control test, which is the one that matters when an agent has your domain. Approval gates and escalation rules can be set at every stage, the platform pulls do-not-contact and suppression lists from your CRM so existing customers and live deals are excluded, Salesforce and HubSpot sync is bi-directional with a read-only mode and field-level export controls, and Artisan is SOC 2 Type II audited, with single sign-on, role-based access and audit logs in the product. Its own enterprise page groups SOC 2 Type II, SSO or SAML and audit logs under the enterprise tier, so get in writing which of them the plan you are quoted actually carries. Ava 2.0, announced on 26 May 2026, is pitched at enterprise revenue teams, and Artisan says it has been deployed across thousands of AEs and BDRs. That is a vendor number with no third party behind it, so treat it as one.
Where it does not. There are no dollar figures on the live pricing page, and the plans are credit-based, so you will have a sales conversation before you know the cost per meeting. It sends from your domains, which is right for reputation ownership and means the warmup and rotation discipline is partly yours. TechCrunch reported roughly 250 customers and about $5 million of annual revenue at the Series A, which is real but not large; weigh that as you would any three-year-old company.
Cost shape. Credit-based plans without public prices as of September 2026, plus a per-seat dialer add-on. Ask for the cost per booked meeting at your expected volume in writing.
Who should pick it. A founder or head of sales at a seed-to-mid-market company that wants an agent to own the pipeline and insists on gates, suppression and audit logs before it does.
- Agent
- Ava, autonomous with approval gates
- Controls
- SOC 2 Type II audited; SSO, RBAC and audit logs, enterprise tier for some
- CRM
- Bi-directional Salesforce and HubSpot with read-only mode
- Logos Artisan publishes
- SumUp, CookUnity, Quora, SaaStr; SumUp is the only one with published results
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AiSDR Best published price
What it is. AiSDR is an autonomous agent that researches prospects from live web signals and runs email and LinkedIn sequences, with HubSpot, Salesforce and Aircall integrations, at a price printed on the homepage.
Where it wins. Three tiers you can do arithmetic against before anyone gets you on a call: $250 a month for 200 AI-researched contacts and one user, $900 for 800 contacts and unlimited users, $2,500 for 2,500. Divide the tier by the contact allowance and you have a cost floor per meeting, which is more than any other agent on this list gives you.
Where it does not. Fewer enterprise controls than Artisan and a smaller company behind it; the quarterly billing is a minimum, not a trial.
Who should pick it. A small team that wants a fully autonomous agent and a number it can budget against today.
- Pricing
- From $250 a month; $900 tier adds unlimited users, billed quarterly
- Channels
- Email and LinkedIn
- CRM
- HubSpot, Salesforce
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11x Best for enterprise, with caveats
What it is. 11x sells two agents, Alice for outbound across email, LinkedIn and SMS and Julian for inbound phone qualification, to mid-market and enterprise teams, and has raised more than $70 million from Benchmark and Andreessen Horowitz.
Where it wins. Alice and Julian cover outbound email and inbound phone qualification on one contract, which only Alta also does on this list. Benchmark and Andreessen Horowitz both restated their backing publicly after the March 2025 reporting, which is worth exactly as much as you think investor statements are worth.
Where it does not. The founder stepped down as chief executive in May 2025 after a TechCrunch report questioned claimed customer numbers, and pricing is on annual sales-scoped contracts. Our stability test is not kind to that combination.
Who should pick it. An enterprise team that has done its own diligence and wants voice and outbound together.
- Agents
- Alice (outbound), Julian (inbound phone)
- Funding
- $70M+
- Pricing
- Annual contracts through sales
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Alta Best multi-channel
What it is. Alta runs three coordinated agents across email, LinkedIn, SMS, WhatsApp and voice, fed by more than fifty data sources, and announced a $25 million Series A led by IN Venture in July 2026, with customers named in the announcement including Snowflake, Deel and Atlassian. Two of Alta's founders came out of monday.com, which is not the same thing as monday.com being a customer.
Where it wins. One contract covers inbound, outbound and voice, and Alta will name enterprise references. It claims revenue up eightfold in a year to a $15 million run rate, which is the steepest growth curve here and also the shortest track record, since the company only started selling in 2025.
Where it does not. No pricing on the homepage, and five channels is five reputations to manage.
Who should pick it. A team that wants agents on every channel and has the ops capacity to supervise them.
- Channels
- Email, LinkedIn, SMS, WhatsApp, voice
- Funding
- $25M Series A, 2026
- Pricing
- Not published
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Salesforge Best for owning deliverability
What it is. Salesforge is a cold email and LinkedIn platform with unlimited mailboxes and senders, free unlimited warmup, and an optional AI SDR called Agent Frank, from a Tallinn company that took a $500,000 pre-seed in April 2024 and has otherwise grown on revenue.
Where it wins. Unlimited mailboxes and senders with warmup included, from a vendor that also sells the mailbox infrastructure underneath from about $33 a month. It is the only platform here where adding sending capacity does not add licence cost.
Where it does not. The agent is an add-on to a sending tool rather than the centre of it, and the enterprise controls are lighter.
Who should pick it. A team that wants to run outbound as infrastructure and add an agent later.
- Pricing
- Agent Frank reported at $499 a month on annual billing, 1,000 active contacts
- Warmup
- Free, unlimited
- Funding
- $500K pre-seed, 2024; otherwise revenue-funded
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Reply.io Best human-led with an agent option
What it is. Reply.io has been selling sequencing since 2014, twelve years, with a database the company puts at more than a billion contacts and roughly 60 million companies, and a separately sold AI SDR named Jason.
Where it wins. Teams that want human-led sequences now and the option to hand campaigns to an agent later, from a vendor that has been through several market cycles.
Where it does not. Jason starts around $500 a month on annual billing for 1,000 active contacts and sits on top of a sequencing plan, so the agent story lands near what a dedicated AI SDR costs without being one.
Who should pick it. A team not ready for autopilot that wants the door open.
- Channels
- Email, LinkedIn, WhatsApp, SMS, calls
- Customers
- 3,000+ stated
- Agent
- Jason, sold separately
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Unify Best signal-driven outbound
What it is. Unify triggers automated plays from more than forty intent sources, building lists, researching, writing and sequencing, and raised a $40 million Series B led by Battery in 2025 with customers including Perplexity and Cursor.
Where it wins. Plays fire off signals rather than lists, and the named references are companies whose own growth was watched closely, Cursor and Perplexity among them. Battery led a $40 million Series B in July 2025, nine months after a $12 million Series A, which is a fast enough escalation to expect the product to keep moving under you.
Where it does not. No published pricing, and it is built for a team with a growth function, not a founder doing outbound between meetings.
Who should pick it. A Series B software company with a growth team and a signal budget.
- Signals
- 40+ intent sources
- Funding
- $40M Series B
- Pricing
- Not published
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Apollo.io Best human-run stack
What it is. Apollo combines a database Apollo now puts at more than 275 million contacts with built-in sequencing, a dialer, enrichment and an AI assistant, and claims more than 500,000 companies as users.
Where it wins. The most data and sequencing for the least money, on a free plan or from $49 a seat a month, with humans still running it.
Where it does not. There is no autonomous agent to speak of, and per-seat pricing means the cost scales with people rather than meetings.
Who should pick it. A team that wants to keep humans in the loop and keep the bill small.
- Pricing
- Free plan; from $49 a user a month
- Claims
- 275M+ contacts, 500,000+ companies
- Agent
- None named
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Clay Best build-your-own
What it is. Clay is a go-to-market data workbench that waterfalls more than 150 data providers, runs AI research agents, and pushes results to sequencers or its own email, on credit-based pricing with a free tier.
Where it wins. Waterfall enrichment across more than 150 providers means you only pay the second source when the first misses, which usually beats a single database contract at the same coverage. Nothing else here lets you price your own data stack line by line.
Where it does not. It is a workbench, not an SDR; the sending, the judgment and the supervision are still yours, and credits stack on top of the providers'.
Who should pick it. A team with an operator who enjoys the building.
- Model
- Orchestration over 150+ providers
- Pricing
- Credit-based, free tier
- Note
- $5B employee tender, January 2026; $7B pre-money round reported August 2026
The part the agent cannot do for you
No agent here knows your customer better than you do, and one on autopilot will send your mistakes faster than a person ever could. Narrow the target until it feels uncomfortable. Write the first sequence yourself. Leave the approval gate on for a month. Watch bounce rate and reply rate per campaign the way you would watch a metric that can end a quarter, because this one can. Autonomy is worth exactly as much as the specification behind it.
Which one to pick
If you want an agent to own the pipeline with gates and audit logs, take Artisan. The second choice is harder than the first: AiSDR if you want the agent priced before the sales call, Salesforge if you want to own the mailboxes, Apollo if you want humans and a small bill, Clay if you want to build it yourself. Whichever two you shortlist, do not pilot them against the same domains at the same time, because you will not know which one burned the reputation. Score it on a price you can read today and AiSDR comes first. We scored it on who can stop the agent mid-send, so Artisan did.
Common questions
What put Artisan above AiSDR?
Gates. The Artisan agent runs the whole outbound loop, but it runs it behind approval steps, suppression lists pulled from your CRM, escalation rules and SOC 2 Type II controls included on every plan. That is what our scoring rewards, because the asset at risk is your sending domain. Score for a price on the homepage instead and AiSDR is the answer.
How much does an AI SDR cost?
AiSDR publishes tiers from $250 a month, with the $900 quarterly tier adding unlimited users, Salesforge's Agent Frank is reported around $499 a month billed quarterly, Artisan and 11x price through sales on credits or annual contracts, and human-run stacks such as Apollo start from $49 a seat a month. Model the cost per booked meeting at your volume rather than the licence.
Is an AI SDR safe for my domain?
Only with the discipline the vendor makes possible: approval gates, banned phrases, suppression lists from your CRM, proper warmup and rotation, and sending from domains you control. Check each of those before switching autopilot on, and keep the gate on for the first month.
Should I hire an SDR or buy an AI SDR?
If you have a clear target and a proven message, an agent can run it at scale for less than a hire. If you are still learning who buys and why, a person will learn faster, and an agent will send your uncertainty to a thousand people.
Which AI SDR platforms integrate with Salesforce and HubSpot?
Artisan syncs bi-directionally with both and offers a read-only mode; AiSDR, Reply.io, Apollo and Unify integrate with both; Clay pushes to either. Check for do-not-contact enforcement and field-level controls, not just a connector.
Key takeaways
- Buy autonomy in proportion to how precisely you have specified the target and the message
- Model cost per booked meeting, including minimums, not the licence
- Own your domains and know whose warmup and rotation you are relying on
- Test bounce rate on your own accounts before believing any contact count
- Artisan is our pick for a team that wants an agent to own the pipeline under gates it controls
Zelcast is a recruiting firm, not a software reseller. If the gap you are actually staring at is a person rather than a platform, tell us the role.
