An outbound agent that ships with its own mailboxes and a quarterly invoice
AiSDR is an AI outbound prospecting service that builds target lists from a plain-English description of your buyer, researches each contact against public web and LinkedIn signals, writes and sends personalized email and LinkedIn messages, and handles the first rounds of reply follow-up; unlike most sequencing tools it also provisions the sending infrastructure, with domains, mailboxes, and warmup included in the plan price, and it is sold in contact-volume tiers starting at $250 a month for one seat.
Overview
AiSDR came out of Y Combinator's Summer 2023 batch, founded in San Francisco by brothers Yuriy and Oleg Zaremba, with roughly $3M raised from YC, Flyer One Ventures, and SID Ventures. Yuriy's previous company, the contract automation startup AXDRAFT, was acquired by Onit in 2020, which is worth knowing because AiSDR reads like a second-time founder's company: narrow scope, aggressive pricing tiers, and a service wrapper around the software rather than a pure self-serve tool.
The product's honest shape is a research step bolted to a sending engine, which is the shape of this whole category, but AiSDR bundles more of the surrounding cost than its competitors do. Every plan includes sending domains, mailboxes, and a LinkedIn account allowance, so you are not separately buying Instantly for sending, Clay for enrichment, and a warmup vendor on top. The Solo plan at $250 a month covers 200 AI-researched contacts, one user, one domain, three mailboxes, and one LinkedIn account. That bundling is the single most useful thing about it for a small business, because the hidden cost in this category is almost never the software license.
The catch is the commitment structure. Solo is genuinely self-serve and billed month to month, but the plans anyone with a real pipeline target actually needs, Explore at $900 a month and Scale at $2,500 a month, are billed quarterly in advance and require booking a demo to buy. There is no free trial anywhere. Reviewers on G2 name the quarterly minimum as the main friction: you are committing roughly $2,700 before you have seen a single reply, in a category where nobody's results are predictable.
Treat the vendor's headline numbers with the skepticism they deserve. AiSDR publishes reply rates said to be three to four times the industry average and a rate of one to three qualified meetings per hundred contacted, but also acknowledges in its own materials that new sending infrastructure takes thirty to sixty days to reach full capacity. Several reviewers report that month one produced very little, which is what you would expect when warmup is running. Budget a quarter, not a month, and judge on the second quarter.
Best for
Founder-led B2B teams and small sales orgs with no SDR to hire and no appetite for assembling a data tool, a sending tool, a warmup vendor, and a personalization layer themselves, who can commit to a quarter of spend and will assign one person to review replies daily.
Not the right fit for
- Anyone who wants to try before they buy: there is no free trial on any tier, and the useful tiers are billed quarterly in advance, so evaluation costs roughly $2,700.
- Teams with complex qualification logic or branching sequences; reviewers consistently report that the playbooks are configurable but not programmable, so custom signal logic is out of reach.
- Businesses selling into markets where cold outbound is regulated or culturally unwelcome, since the product's entire value is volume of cold first touches.
- Companies that already own good sending infrastructure and a data stack, who would be paying twice for domains, mailboxes, and enrichment they already have.
- Anyone expecting an unattended digital employee; replies land in a human inbox and the AI's own reply drafting is the feature reviewers most often ask to restrain.
How it works
- 1
You start with the AI strategist the vendor calls Ami: a conversational setup that turns a description of your business into an ICP definition, target audiences, buying signals, messaging angles, and a first sequence. The vendor positions this as replacing several days of consulting work with about twenty minutes of chat. In practice it produces a serviceable first draft that you should expect to rewrite once you have seen real replies.
- 2
AiSDR then builds the list. You can push contacts in from HubSpot or Salesforce, upload your own, or use its live AI search, which assembles fresh lists from public web data rather than reading only a static contact database. Each contact is researched before anything is written: recent LinkedIn activity, company news, hiring, job responsibilities, and other public signals.
- 3
The sending infrastructure is provisioned by AiSDR rather than by you. Plans include a set number of domains and mailboxes plus LinkedIn accounts, and the domains go through warmup before real volume starts. This is why the first month typically underperforms, and why the vendor's own bounce and reputation monitoring sits between you and a burned domain.
- 4
The agent then runs the sequence across email and LinkedIn, with support for video, voice notes, and images inside messages, and an Aircall integration for dialing. It reads replies and drafts responses, and this is where human review matters most: reviewers report the AI occasionally answering a live conversation earlier than a human would have wanted. Positive replies still need a person watching the inbox daily, and the vendor's own framing is human oversight for strategy with AI execution, not an unattended employee.
Feature breakdown
24 features in 5 modulesTargeting and list building
Where the contacts come from, and how fresh they are.- Plain-English AI search
- Describe your ideal buyer in a sentence and AiSDR assembles a list from live web data rather than only querying a static contact database, which matters when your ICP is not a clean firmographic filter.
- Ami, the AI strategist
- A conversational setup flow that outputs an ICP, target audiences, buying signals, messaging angles, and a first sequence. Useful as a starting draft, not as a finished strategy.
- Signal-based targeting
- Public signals such as funding, hiring, executive changes, and recent posts are used to decide who is worth contacting now rather than eventually.
- CRM list import and sync
- Two-way sync with HubSpot and list import from Salesforce, so the agent can work a list your CRM already owns rather than a parallel database.
- Contact volume as the metering unit
- Plans are sized in AI-researched contacts per month (200, 800, 2,500), not in emails sent, which makes the cost per contacted prospect easy to calculate up front.
Research and message writing
The part of the agent that is genuinely automated.- Per-contact research pass
- Each prospect is researched before a message is drafted: LinkedIn activity, company announcements, role responsibilities, and industry news, rather than a merge field on a job title.
- Fully AI-written copy
- The vendor states that messages delivered to prospects are AI-written end to end. You supply positioning and tone; you do not hand-write each variant.
- Rich media in messages
- Video, voice notes, images, and memes can be embedded in outreach, which is unusual in this price band.
- Adaptive sequencing
- Follow-up cadence and content adjust based on prospect behavior and replies rather than following a fixed static ladder.
- Tone and knowledge grounding
- The agent is grounded in your own materials and positioning so claims in messages track what you actually sell.
Sending infrastructure, included
The reason a small team would pick this over assembling a stack.- Domains and mailboxes in the plan
- Solo includes 1 domain and 3 mailboxes, Explore 2 domains and 6 mailboxes, Scale 6 domains and 18 mailboxes. You are not buying sending infrastructure separately.
- LinkedIn account allowance
- Solo covers 1 LinkedIn account, Explore 5, Scale 20. Note that these are your accounts and your risk; LinkedIn automation always carries account restriction exposure.
- Warmup and reputation management
- New domains are warmed before real volume, which is why full sending capacity typically arrives thirty to sixty days after signup rather than on day one.
- Bounce and reputation monitoring
- Bounce rates and domain reputation are monitored, with the vendor positioning reputation protection ahead of raw volume.
- Mailbox rotation across the pool
- Volume is spread across the provisioned mailboxes rather than concentrated on one address, which is table stakes for cold sending but is handled for you here.
Replies, meetings, and channels
Multi-channel execution and the point where humans re-enter.- Email and LinkedIn orchestration
- Sequences coordinate email and LinkedIn touches from one interface rather than requiring a separate LinkedIn tool.
- AI reply handling
- The agent reads and drafts responses to inbound replies. This is the most-criticized feature: reviewers report it occasionally responds where a human answer would have been better, so supervision is not optional.
- Meeting booking
- Qualified conversations are steered toward a calendar booking rather than handed off as a raw reply.
- Aircall dialer integration
- Phone is available as part of a multi-channel play through an Aircall integration, with call activity flowing back into the record.
- Activity logging back to CRM
- Outreach and replies are logged into HubSpot or Salesforce so the sequence history lives where your team already works.
Service layer
What the vendor does that software alone does not.- Onboarding and infrastructure setup
- All plans include onboarding support and email infrastructure setup, which for a non-technical founder is a meaningful part of what is being bought.
- Managed campaign add-on
- Explore customers can add a managed service at $149 per campaign, and Scale customers can buy a fully managed service at $2,500 a month on top of the license.
- Unlimited seats above Solo
- Explore and Scale include unlimited users, so seat count is never the variable you are optimizing; contact volume is.
- Pre-built playbooks
- Campaign playbooks ship configured for common motions. Reviewers flag the flip side: you can configure them but you cannot build arbitrary branching logic.
Use cases
4 documentedFounder selling a $12k ACV product with no SDR
Outbound is the only channel that has produced pipeline, but the founder is doing list building, writing, and sending between customer calls, and it stops entirely during busy weeks.
Solo at $250 a month covers 200 researched contacts, three mailboxes, and a LinkedIn account, so the sending never stops. The founder spends twenty minutes a day on replies instead of six hours a week on the whole motion.
Two-person sales team replacing a departed SDR
The SDR who left cost roughly $75k plus tooling, and hiring a replacement means three months of ramp before the first meeting.
Explore at $900 a month covers 800 contacts, six mailboxes, and five LinkedIn accounts with unlimited seats. It is not a like-for-like replacement for a good SDR, but it restarts top-of-funnel in weeks rather than quarters and the AEs review the replies themselves.
Agency or consultancy testing a new vertical
The team wants to know whether a new industry segment responds at all before committing headcount or building a dedicated list.
The AI strategist drafts an ICP and messaging angles for the segment, live search assembles the list, and a quarter of sending produces a real reply-rate read on the vertical instead of an opinion.
HubSpot-centric team with a stale contact database
Thousands of old contacts sit in HubSpot untouched, and nobody has the time to research them individually before reaching out.
Lists sync from HubSpot, each contact gets a research pass and a grounded message, and activity logs back to the CRM so the team can see which dormant segments still have a pulse.
Pricing
from $250 per month (Solo, 200 contacts)Contact-volume tiers quoted per month. Solo is month to month and self-serve; Explore and Scale are billed quarterly in advance and require a demo. Annual prepayment takes 20 percent off.
| Plan | Price | Includes |
|---|---|---|
| Solo | $250 per month, month to month |
The only tier a small business can buy without talking to anyone. $2,400 a year if prepaid. |
| Explore | $900 per month, billed quarterly in advance |
Requires booking a demo. $8,640 a year if prepaid. The quarterly minimum is roughly $2,700 up front. |
| Scale | $2,500 per month, billed quarterly in advance |
$24,000 a year if prepaid. At this price you are comparing against a real SDR plus tooling. |
Add-ons
- Managed campaign (Explore) ($149 per campaign): AiSDR staff build and run the campaign for you.
- Fully managed service (Scale) ($2,500 per month): Doubles the effective cost of the Scale tier.
Billing notes
- There is no free trial on any tier, which is unusual even in this category and is the complaint reviewers raise most often.
- Explore and Scale are quarterly commitments paid in advance, so the smallest realistic evaluation above Solo costs about $2,700.
- Annual prepayment saves 20 percent: $2,400, $8,640, and $24,000 respectively.
- Domains, mailboxes, and warmup are inside the plan price, which is genuinely unusual and worth roughly $50 to $200 a month of tooling you would otherwise buy separately.
- New sending domains take thirty to sixty days to reach full capacity, so the first month of any contract is largely warmup you are paying full price for.
- LinkedIn allowances are seats for your own accounts, not accounts AiSDR provides, and the restriction risk stays with you.
Value assessment: Solo at $250 a month is the fairest entry point in this category, because it is the only tier where a small business can start without a sales call and where the infrastructure cost is genuinely included. Per contacted prospect it works out at $1.25 on Solo, $1.13 on Explore, and $1.00 on Scale, which is cheap against any human alternative and expensive against a self-assembled stack of Instantly plus a data provider. The value case falls apart if you cannot commit a quarter: with no trial, warmup eating month one, and quarterly prepayment on the useful tiers, the true minimum test is about $2,700 and ninety days. Buy it for the bundled infrastructure and the service wrapper, not for the autonomy claims.
Strengths & limitations
Strengths
- Sending infrastructure is included rather than assumed: domains, mailboxes, warmup, and LinkedIn allowances all sit inside the plan price, which removes the biggest hidden cost in AI SDR buying.
- The Solo tier at $250 a month is genuinely self-serve, published, and month to month, which almost none of the demo-gated competition offers.
- Metering by researched contacts rather than emails sent makes cost per prospect trivially easy to model before you buy.
- Live web search for list building is less brittle than a static contact database when your ICP is defined by behavior rather than firmographics.
- Multi-channel execution across email, LinkedIn, and Aircall dialing from one place, with rich media support that most competitors in this price band lack.
- Founded by a repeat operator with a prior exit and backed by Y Combinator, which is thin comfort but better than the funding profile of most tools in this category.
Limitations
- No free trial at any tier, and the tiers above Solo are demo-gated and billed quarterly in advance, so evaluation is expensive and slow.
- Warmup means the first thirty to sixty days underdeliver by design, and you pay full price for that period.
- Sequence customization is shallow: reviewers report you cannot build custom signal logic or complex branching, only configure supplied playbooks.
- AI reply handling occasionally answers conversations that a human should have taken, which is a reputational risk in a small market where every prospect matters.
- Data quality and targeting logic are opaque; at least one reviewer reported no replies and no visibility into why the targeting chose who it chose.
- The company is small and recently funded at roughly $3M, so this is an early-stage vendor being paid enterprise-adjacent sums on quarterly prepayment.
- LinkedIn automation at the volumes the higher tiers imply carries real account restriction risk that the vendor does not absorb.
Head-to-head comparisons
5 alternativesAiSDR vs Salesforge
from $40 per month (Pro), with Agent Frank from $499 per monthBoth are outbound agents with infrastructure attached, but Salesforge sells the pieces separately and cheaply: $40 a month for the human-driven platform, $499 a month for Agent Frank, and mailboxes from $33 a month through Infraforge. AiSDR bundles everything into one contact-volume price with onboarding and a managed option. Take Salesforge if you want to control the stack and start at a low monthly number; take AiSDR if you want one invoice, someone else provisioning domains, and a service layer around the software.
Full AiSDR vs Salesforge comparisonAiSDR vs Regie.ai
from $0 (Free), then $49 per month (Pro)Regie.ai has a free tier and a $49 self-serve plan and expects you to send from your own Gmail or Outlook, so it is a far cheaper way to find out whether an AI-assisted outbound motion works for you. AiSDR provides the mailboxes, the warmup, and the service wrapper, and charges accordingly. Start with Regie if you have deliverable mailboxes and want to test cheaply; move to AiSDR if you need cold-sending infrastructure you do not want to build.
Full AiSDR vs Regie.ai comparisonAiSDR vs Jeeva AI
from $0 (Free), then $95 per month (Growth)Jeeva publishes a free plan and $95 and $239 self-serve tiers and has broadened into general-purpose digital workers beyond sales. AiSDR stays narrow: outbound prospecting with its own sending infrastructure and a quarterly contract. Pick Jeeva to experiment at low cost across several workflows; pick AiSDR when outbound is the whole job and you want the deliverability problem owned by the vendor.
Full AiSDR vs Jeeva AI comparisonAiSDR vs Instantly
from $37/moInstantly is a sending platform with warmup and a lead database, priced far below AiSDR, but you drive it: you build the list, you write the sequence, you decide who gets contacted. AiSDR does the research and writing and charges roughly five to ten times more for it. If you have someone whose job is outbound, Instantly plus their time is better value; if nobody owns the motion, AiSDR is buying the labor, not the software.
Full AiSDR vs Instantly comparisonAiSDR vs Apollo.io
from Free plan; paid from $49/user/moApollo bundles a very large B2B database with sequencing from $49 a month and is the default first purchase for a small sales team. AiSDR costs five times more at entry and its advantage is the research pass, the writing, and the included cold-sending infrastructure. Buy Apollo if you want data and a sequencer you control; buy AiSDR if the bottleneck is that nobody has time to use Apollo.
Full AiSDR vs Apollo.io comparisonImplementation & onboarding
- Setup time
- About a week of configuration, then thirty to sixty days before sending is at full capacity because new domains warm up first. Treat the first month as ramp regardless of what the plan comparison implies.
- Learning curve
- Low on the software, higher on the judgement. The interface is simple and the strategist walks you through setup, but deciding which replies the AI should handle and which need a human is the skill that determines whether this works.
- Onboarding
- Onboarding support and email infrastructure setup are included on every plan. Solo is fully self-serve; Explore and Scale start with a demo call, and managed service is available as a paid add-on rather than being included.
- Migration notes
- Lists come in from HubSpot, Salesforce, or CSV. Because AiSDR provisions its own sending domains, leaving means those domains and their earned reputation stay with the vendor's setup rather than transferring cleanly to a new tool, so the switching cost is deliverability, not data.
Platform, API & security
- Platforms
- Web applicationChrome-based workflowsEmail and LinkedIn channelsAircall for voice
- API
- Not published as a general public API; integration happens through the CRM connectors and Aircall rather than through developer endpoints.
- Compliance
- GDPR and CAN-SPAM handling described in vendor materialsNo public SOC 2 attestation advertised on the marketing site
- Data residency
- Not published.
- SSO
- Not advertised on published plans.
- Security notes
- The bigger practical risk is operational rather than architectural: you are handing a vendor control of sending domains and LinkedIn account access, and both carry consequences (domain reputation, account restriction) that land on you rather than on them.
Support & resources
- Channels
- Email supportOnboarding support on all plansDedicated help for Explore and Scale customers
- Documentation
- Help center plus an unusually large marketing blog covering outbound tactics, deliverability, and AI SDR benchmarks; the blog is the vendor's main content channel.
- Community
- No public user community; support is a direct vendor relationship.
Company
- Founded
- 2023
- Headquarters
- San Francisco, California, United States
- Ownership
- Venture-backed
- Founders
- Yuriy Zaremba, Oleg Zaremba
- Employees
- Small team, not publicly disclosed
- Funding
- Approximately $3M raised, including Y Combinator (Summer 2023 batch), Flyer One Ventures, and SID Ventures.
Funding history
| Round | Amount | Year | Notes |
|---|---|---|---|
| Y Combinator | Standard YC investment | 2023 | Summer 2023 batch. |
| Seed | Approximately $3M total raised | 2023 | With Flyer One Ventures and SID Ventures participating. |
Timeline
- 2023Founded in San Francisco by brothers Yuriy and Oleg Zaremba and accepted into Y Combinator's Summer 2023 batch.
- 2023Launches as an AI outbound email agent with sending infrastructure included in the subscription rather than bought separately.
- 2024Adds LinkedIn as a first-class channel alongside email, plus rich media in messages and an Aircall integration for voice.
- 2025Introduces the Ami AI strategist for conversational campaign setup and shifts targeting toward live web search and buying signals.
- 2026Publishes a three-tier structure starting at $250 a month for Solo, keeping the entry tier self-serve while gating Explore and Scale behind demos and quarterly billing.
Integrations
- HubSpot (two-way sync, list import, activity logging)
- Salesforce (list import and activity logging)
- Aircall (dialing and call insights)
- Gmail and Microsoft mailboxes for reply handling
- LinkedIn (via connected accounts)
- Calendar booking for meetings
- CSV import and export
Frequently asked questions
10 questionsWhat is AiSDR?
AiSDR is an AI outbound prospecting service. It builds a target list from a plain-English description of your buyer, researches each contact against public signals, writes and sends personalized email and LinkedIn messages, and drafts replies. Unlike most tools in this category it also provides the sending domains, mailboxes, and warmup as part of the plan.
How much does AiSDR cost?
Solo is $250 a month for 200 researched contacts, one user, one domain, three mailboxes, and one LinkedIn account, billed month to month and available without a sales call. Explore is $900 a month for 800 contacts and Scale is $2,500 a month for 2,500 contacts, both billed quarterly in advance and both requiring a demo. Annual prepayment saves 20 percent.
Is there a free trial?
No. AiSDR does not offer a free trial or a free plan on any tier. Solo at $250 month to month is the cheapest way to evaluate it, and the tiers above that require roughly $2,700 up front because they bill quarterly in advance.
Does AiSDR provide the mailboxes, or do I bring my own?
It provides them. Each plan includes a set number of sending domains and mailboxes plus a LinkedIn account allowance, and the domains are warmed before real volume starts. This is the strongest practical argument for the product, since deliverability infrastructure is usually the hidden cost of running an AI SDR.
How long before AiSDR produces meetings?
Plan on a quarter. New sending domains need thirty to sixty days of warmup to reach full capacity, and multiple reviewers report a weak first month for exactly that reason. The vendor's own benchmark of one to three meetings per hundred contacted only becomes meaningful once volume is at full capacity.
How autonomous is it really?
It is not an unattended employee. The agent researches, writes, sends, and drafts replies, but a person still approves the strategy, monitors positive replies, and intervenes in live conversations. Reviewers specifically report the AI sometimes answering a thread earlier than they would have liked, so daily inbox review is part of the job, not an optional extra.
What are the most common complaints about AiSDR?
The quarterly prepayment with no trial, a weak first month during warmup, shallow sequence customization with no custom signal logic or complex branching, opaque targeting logic, and AI replies that occasionally step into conversations too early. None of these are unusual for the category, but the billing structure amplifies them because you cannot leave mid-quarter.
Does AiSDR replace an SDR?
It replaces the mechanical parts of the job: list building, research, drafting, sending, and first-line follow-up. It does not replace judgement about a market, the ability to improvise on a live call, or accountability for a number. At $900 a month against roughly $75k plus tooling for a junior SDR the arithmetic is attractive, but the correct comparison is AiSDR plus a few hours a week of your own attention against the human.
Which CRMs does AiSDR work with?
HubSpot has the deepest integration with two-way sync, list import, and activity logging. Salesforce is supported for list import and activity logging. Aircall provides dialing. There is no published general API, so integrations outside that list are not straightforward.
Who owns the LinkedIn risk?
You do. The plan allowances are for your own LinkedIn accounts, not accounts the vendor supplies, so automation volume that triggers a restriction lands on your team's profiles. Treat the twenty-account allowance on Scale as a capacity figure rather than a recommendation.
Editorial verdict
AiSDR is one of the few products in this category that a small business can actually buy without a sales call, and the reason to buy it is the boring part: it hands you warmed domains, mailboxes, and a LinkedIn allowance inside the subscription, which is where self-assembled outbound stacks usually die. The research and writing are competent, the multi-channel execution is real, and the $250 Solo tier is a fair price for a founder who has stopped doing outbound because there is no time. Be clear-eyed about the rest. There is no trial, the first month is warmup you pay for, the useful tiers cost about $2,700 to try and require a demo, the sequences cannot be programmed, and the AI reply handling needs supervision. Buy it as a service that does the mechanical work of prospecting with someone still watching, budget a full quarter before judging, and do not believe any framing that has it carrying a quota on its own.
Written by the SaaSTracker editorial team. Awards, when shown, are judged against the published criteria in our methodology.
Awards & badges
1 heldAiSDR holds 1 award from the SaaSTracker editorial program. Badges may be displayed by the vendor; each embed links back to this profile.
Category Leader · AI SDR Agents
“The most complete outbound agent in the category, shipping with its own mailboxes, data, and a done-for-you sending stack.”
<a href="https://saastracker.org/products/aisdr"><img src="https://saastracker.org/badges/embed/aisdr/category-leader-summer-2026.svg" width="180" height="180" alt="AiSDR: Category Leader, AI SDR Agents. SaaSTracker Summer 2026 Awards." /></a>
