AiSDR review
Launched 2023 (Y Combinator Summer 2023 batch)AI SDR agent that finds prospects from buying signals, runs personalized email and LinkedIn outreach, and books meetings; plans from $250/month.
By Frederik S. Christiansen · Published 2026-07-05
AiSDR is an AI sales development platform that automates the outbound SDR role for B2B teams. It finds prospects using real-time buying signals — job changes, funding rounds, hiring surges, and tech-stack shifts — builds lead lists from plain-English descriptions, writes researched, personalized outreach across email and LinkedIn (connection requests, direct messages, and InMails), handles replies, qualifies leads, and books meetings directly on reps' calendars. It can run fully autonomously, answering prospect replies within 5-10 minutes, or in a 'co-pilot' mode where a human approves messages before they go out.
Operationally, each plan bundles the sending infrastructure most cold-outreach stacks require teams to assemble themselves: domains and mailboxes with turnkey setup and warm-up (from 1 domain and 3 mailboxes on the Solo plan up to 6 domains and 18 mailboxes on Scale), plus connected LinkedIn accounts. An AI Strategist agent (branded 'Ami') generates ICP definitions, target audiences, messaging angles, and complete sequences. Plans are metered by 'AI-researched contacts' per month — 200 on Solo, 800 on Explore, 2,500 on Scale — and unused messages roll over into the next quarter while a subscription is active. Two-way HubSpot sync is included on all plans; two-way Salesforce sync is reserved for the top tier, and an Aircall integration covers call scripts and outcome logging.
The company was founded in 2023 by brothers Yuriy and Oleg Zaremba, who previously founded contract-automation startup AXDRAFT (acquired by Onit in December 2020). AiSDR went through Y Combinator's Summer 2023 batch and announced a $3M round in November 2023 from Y Combinator, Flyer One Ventures, Rebel Fund, SID Venture Partners, Pioneer Fund, BluePointe Ventures, and several angels; press reported it as a seed round, while Crunchbase records it as a roughly $2.97M pre-seed. It competes against autonomous-agent products like Monaco as well as established self-serve engagement platforms such as Apollo.io, Instantly, and Smartlead. The company says 250+ companies use the product and reports a 7.1% average reply rate and 12,000 meetings booked for clients in 2025 — all vendor-reported figures.
AiSDR's positioning is flat-fee and outcome-oriented rather than per-seat: Explore and Scale include unlimited users, and mid/upper tiers add a dedicated GTM engineer for onboarding, 24/7 Slack support, and optional managed services. The trade-offs are real: there is no free trial, plans above the $250/month Solo tier require quarterly contracts paid in advance, there is no native dialer, and third-party review analyses note limits on custom signal logic and follow-ups that can become generic.
Key features
Signal-based prospecting and list building
Builds prospect lists from plain-English audience descriptions and real-time buying signals — job changes, funding rounds, hiring surges, and tech-stack shifts — rather than static list exports. Plans meter this as 'AI-researched contacts' per month (200 on Solo, 800 on Explore, 2,500 on Scale), and the platform can also work from your existing lead lists on Explore and above.
AI-personalized email and LinkedIn outreach
Sends email via Gmail/Outlook mailboxes plus LinkedIn connection requests, DMs, and InMails. Personalization draws on the prospect's LinkedIn activity, recent posts, company news, and the signal that triggered targeting. Replies are handled by the AI within 5-10 minutes in autopilot mode, or routed through a human-approval co-pilot mode. LinkedIn account limits are tiered: 1 (Solo), 5 (Explore), 20 (Scale).
AI Strategist campaign planning (Ami)
A GTM-agent layer that generates ICP definitions, target audiences, messaging angles, and complete multichannel sequences. Playbooks are pre-built and configurable; third-party review analyses note you cannot build fully custom signal logic or complex branching sequences on top of them.
Bundled email infrastructure and warm-up
Every plan includes turnkey domain and mailbox provisioning with warm-up — 1 domain/3 mailboxes on Solo, 2 domains/6 mailboxes on Explore, 6 domains/18 mailboxes on Scale — so teams do not have to assemble separate sending, warm-up, and rotation tooling. Unused message credits roll over into the next quarter while the subscription is active.
CRM sync and monitoring
Native two-way HubSpot sync is included on all plans, with AI research and monitoring of HubSpot lists from the Explore tier. Two-way Salesforce sync — including turning any Salesforce report into an outreach campaign — is only available on the $2,500/month Scale plan. An Aircall integration generates call scripts and logs call outcomes; there is no native dialer.
Managed services and hands-on support
Solo is self-serve with email and in-app chat support. Explore and Scale add dedicated GTM engineer onboarding, 24/7 Slack support, and monthly check-ins; Scale adds bi-weekly performance review calls. Optional paid services include per-campaign management and a fully managed service on Scale.
AiSDR pricing
- 200 AI-researched contacts/month, 1 user
- 1 domain, 3 mailboxes, 1 LinkedIn account with turnkey setup and warm-up
- Email (Gmail/Outlook) plus LinkedIn connection requests, DMs, and InMail
- Native two-way HubSpot CRM sync
Month-to-month, cancel anytime
- 800 AI-researched contacts/month, unlimited users
- 2 domains, 6 mailboxes, 5 LinkedIn accounts
- LinkedIn signals: post engagement, profile visits, keyword tracking
- Dedicated GTM engineer onboarding, 24/7 Slack support
Quarterly contract, payment in advance
- 2,500 AI-researched contacts/month, unlimited users
- 6 domains, 18 mailboxes, 20 LinkedIn accounts
- Native two-way Salesforce CRM sync plus HubSpot
- Website visitor tracking, enrichment, and outreach
- Priority support with bi-weekly performance reviews
Quarterly contract, payment in advance
Pricing verified 2026-07-05 — source: vendor pricing page. Always confirm at checkout.
Pros and cons
Pros
- Flat monthly pricing with unlimited users on Explore and Scale tiers, rather than per-seat pricing
- Email infrastructure (domains, mailboxes, warm-up) and LinkedIn accounts are bundled into every plan
- Two-way HubSpot sync on all tiers, including the entry-level $250/month Solo plan
- Hands-on onboarding with a dedicated GTM engineer and 24/7 Slack support from the Explore tier up
- The $250/month Solo tier is month-to-month and cancelable anytime — a lower-commitment entry point than the quarterly-contract Explore and Scale tiers
- Unused message credits roll over into the next quarter while the subscription is active
Cons
- No free trial, and the Explore ($900/mo) and Scale ($2,500/mo) tiers require quarterly contracts paid in advance — a third-party analysis of AiSDR's G2 reviews calculates a roughly $2,700 minimum outlay at the Explore tier before you know whether it fits your prospects.
- No native dialer: phone outreach depends on the Aircall integration for scripts and call logging, so phone-first teams need additional tooling.
- Two-way Salesforce sync and website visitor tracking are reserved for the $2,500/month Scale tier; lower tiers are effectively HubSpot-or-CSV.
- Third-party review analyses report limited custom signal logic and sequence branching (playbooks are pre-built and configurable only), follow-ups that can become repetitive, and no A/B testing framework.
- No public API documentation in the vendor's help center, limiting programmatic integration beyond the native CRM syncs.
- Volume is metered by 'AI-researched contacts' per month (200-2,500 depending on tier), so scaling beyond plan limits means overage payments or upgrading.
Who it's for
- Small B2B teams and startups that want outbound running without hiring SDR headcount
- Teams standardized on HubSpot that want CRM-synced, signal-triggered outreach
- Founders or lean sales teams who don't want to assemble domains, mailboxes, and warm-up tooling themselves
- Companies that want a managed or semi-managed outbound motion with hands-on onboarding
Probably not for
- Phone-first sales teams that need a native dialer and heavy call workflows
- Teams that want to trial software free before committing — there is no free trial and mid/top tiers require quarterly contracts
- Salesforce-centric teams on a budget, since two-way Salesforce sync requires the $2,500/month Scale plan
- Operators who want granular control: custom signal logic, complex branching, and A/B testing are limited per third-party reviews
Our verdict
AiSDR is a credible option for small B2B teams that want email and LinkedIn outbound running end-to-end — prospecting, personalization, reply handling, and booking — without hiring an SDR or building a cold-email stack. The flat-fee, unlimited-seat model with bundled mailboxes and warm-up makes costs predictable, and the $250/month Solo tier gives a lower-risk entry point than the quarterly-contract tiers third-party reviews flag as a commitment barrier. The honest caveats: there is no free trial, the $900 and $2,500 tiers lock you in quarterly with payment in advance, phone outreach leans on an Aircall integration rather than a native dialer, and Salesforce users must buy the top tier. Its vendor-reported 7.1% average reply rate and 12,000 meetings booked in 2025 are unaudited claims and should be treated as such.
Frequently asked questions
Does AiSDR offer a free trial?
No. The vendor's pricing page states it does not offer a free trial. The $250/month Solo plan is month-to-month and cancelable anytime, while the Explore ($900/month) and Scale ($2,500/month) plans require quarterly contracts with payment in advance. Annual billing carries a 20% discount.
Which CRMs does AiSDR integrate with?
Native two-way HubSpot sync is included on all plans, with AI research and monitoring of HubSpot data from the Explore tier. Two-way Salesforce sync — including turning Salesforce reports into campaigns — is only available on the Scale plan. An Aircall integration handles call scripts and call-outcome logging.
Does AiSDR make phone calls?
AiSDR has no native dialer. Its outreach channels are email (via Gmail/Outlook mailboxes) and LinkedIn (connection requests, DMs, InMails). Phone coverage comes through the Aircall integration, which supports AI call steps in sequences, generates call scripts, and tracks outcomes.
How are AiSDR's usage limits structured?
Plans are metered by 'AI-researched contacts' per month: 200 on Solo, 800 on Explore, and 2,500 on Scale, alongside tiered domain, mailbox, and LinkedIn-account limits. Unused messages roll over into the next quarter while the subscription is active; hitting limits triggers an in-app notification with the option to pause campaigns or pay overage.
Top AiSDR alternatives
All AiSDR alternatives →
Sales platform pairing a vendor-claimed 230M+ contact B2B database with email sequencing, dialing, and enrichment; self-serve plans from $49 per user/month.
from $49/mo
Cold email outreach platform with unlimited connected inboxes, built-in warmup, a vendor-stated 450M-contact B2B database, and AI agents.
from $47/mo
Cold email outreach platform with unlimited sender mailboxes, automated warmup, and agency whitelabel features, priced by monthly send volume.
from $39/mo
AI-native sales platform for seed and Series A startups that combines a prospect database, autonomous outbound agents, and a self-updating CRM.
sales-quoted
AiSDR is listed as an alternative in our reviews of Apollo.io, Instantly, Monaco, Smartlead.
Sources
- AiSDR pricing page (tiers, contracts, trial policy, rollover, overage) (accessed 2026-07-05)
- AiSDR homepage (250+ companies, 12,000 meetings booked in 2025) (accessed 2026-07-05)
- AiSDR platform page (channels, signals, CRM integrations) (accessed 2026-07-05)
- Y Combinator company profile (founding year, S23 batch, founders, San Francisco HQ) (accessed 2026-07-05)
- The SaaS News: AiSDR Raises $3 Million in Funding (accessed 2026-07-05)
- MarketBetter analysis of AiSDR G2 reviews (Explore-tier commitment, no dialer, playbook limits) (accessed 2026-07-05)
- ColdReach analysis of 100+ AiSDR reviews (repetitive follow-ups, no A/B testing, fixed signal logic) (accessed 2026-07-05)