Fundraising Fox
/Companies
Sign in

AiSDR

YC S23

San Francisco, US · Founded 2023 · 34 employees · 12 known investors

Find your way into AiSDR

Sign up to see every warm intro you have to AiSDR

  • Paths you didn't know you had: your email and LinkedIn already hold routes to the AiSDR team. We find them for you
  • 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
  • Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone

Days of research, done the moment you sign in, with every route ranked by how warm it is.

Sign up with GoogleAlready have an account? Log in

AiSDR is an AI sales agent that automates outbound sales emails and books meetings for B2B companies. The platform uses signal-based prospecting across multiple channels including email, LinkedIn, and SMS to help sales teams generate qualified meetings and improve conversion rates.

Also known as AI SDR

AI & Machine LearningEnterprise SoftwareSaaSSales TechArtificial IntelligenceB2BSalesAIUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (S23)

AiSDR was founded in 2023 by Yuriy Zaremba and Oleg Zaremba.

YZYuriy Zaremba
Yuriy ZarembaCEO & Co-founderYuriy Zaremba is a two-time Y Combinator alumnus who previously founded AXDRAFT, a company he grew to $2M in revenue before its acquisition by Onit Inc.; he subsequently managed a $10M ARR business unit at Onit. He is now building AiSDR, focusing on generative AI-powered sales prospecting automation.
OZOleg Zaremba
Oleg ZarembaCTO & Co-founderOleg Zaremba previously co-founded AXDRAFT, a legal tech startup acquired by Onit Inc., where he directed engineering, product, and quality assurance before leading AI and cross-product integration initiatives post-acquisition. He co-founded AiSDR in 2023 with his brother to develop generative AI tools for sales prospecting.
YZ
Yuriy Zaremba Oleg ZarembaFounder

Investors · 12

Angel Onelisted by Angel OneKyiv · $50K – $200K

How we know: Angel One's portfolio page · Not right? Tell us

Flyer One Ventureslisted by Flyer One VenturesKyiv · $385K – $1.6M

How we know: thesaasnews.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us

Maiora Rebel Ventureslisted by Maiora Rebel Ventures

How we know: maioraventures.com · Not right? Tell us

Pioneerlisted by PioneerToronto, Ontario

How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us

Rebel Fundlisted by Rebel FundSan Francisco · $100K – $5M

How we know: Rebel Fund's portfolio page · thesaasnews.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us

SID Venture Partnerslisted by SID Venture PartnersKyiv · $200K

How we know: SID Venture Partners's portfolio page · thesaasnews.com · Y Combinator's founder network · Not right? Tell us

Agrolimen Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

BluePointe VenturesreportedSan Mateo · $100K – $1.5M

How we know: thesaasnews.com · Not right? Tell us

DniproreportedPalo Alto

How we know: Y Combinator's founder network · Not right? Tell us

Ross CapitalreportedMoscow

How we know: Y Combinator's founder network · Not right? Tell us

SCM Advisorsreported

How we know: thesaasnews.com · Y Combinator's founder network · Not right? Tell us

Images

AiSDR photo

Founder mafia

2 people who came through AiSDR went on to found or lead other companies.

Oleg ZarembaFounderFounded AXDRAFTYuriy ZarembaCEOFounded AXDRAFT

Related companies · 10

CognismCognism is a B2B sales intelligence platform that provides accurate, compliance-focused contact and company data for revenue and go-to-market teams. It focuses on serving sales teams selling into and across EMEA and European markets, with additional presence in the US.
CentralizeCentralize is an AI-powered relationship intelligence platform that maps buying groups and stakeholders across enterprise accounts using data from calls, emails, calendars, CRM, and networks. It helps sales and customer success teams identify decision-makers, identify blind spots, and execute more effective account strategies.
SalesforgeSalesForge provides tools and training for agencies and service providers to execute cold email campaigns effectively. The company targets agency professionals and consultants seeking to build revenue through outbound email sales strategies.
OpenmartOpenmart provides a verified database of 50,000+ real estate investors across the United States, including investment firms, property investors, and syndicates, with enriched contact data for B2B sales and marketing teams. The platform enables direct outreach to decision-makers with email campaigns and segmented lists filtered by location, business size, revenue, and specialization.
ArtisanArtisan builds an AI-powered platform that consolidates fragmented work software tools and automates repetitive workflows through AI collaborators. The platform initially focuses on outbound sales but aims to expand across industries including customer success, recruiting, and enterprise operations.
FirstQuadrantFirstQuadrant was an AI-driven sales platform for tech companies that has been sunset following an acquisition by a leading AI technology company.
ReplyEnabling 1:1 conversations at scale.
SpeckSpeck aggregates data from CRM systems, email, data warehouses, and web sources to provide sales professionals with comprehensive research and context before meetings. The platform integrates directly into browser-based meeting applications to enable real-time information retrieval during calls.
LeadfeederLeadfeeder identifies the companies visiting a business's website and surfaces buying signals for B2B sales and marketing teams. Its MCP Server (beta) connects this website-visitor data to AI tools such as Claude and ChatGPT, letting users query good-fit visitors, enrich accounts, and build target lists in a chat, using B2B data collected under European privacy standards.
KenobiKenobi customizes website landing pages for individual visitors by inserting personalized content through a single code snippet, using AI to generate visitor-specific messaging and improve conversion rates.

Companies working in the same space as AiSDR.

Legal entities · 1

corporate structure
AiSDR Inc.

In the news

AI prospecting tool | Prospect finder for in-market buyersaisdr.com · Mar 2026AiSDR 2023 Year in Review | AiSDRaisdr.com · Dec 2023AiSDR Raises $3 Million in Funding | The SaaS Newsthesaasnews.com · Dec 2023AiSDR - AI that sellsycombinator.com · Sep 2023

Frequently asked questions

What does AiSDR do?
AiSDR is an AI sales agent that automates outbound sales emails and books meetings for B2B companies. The platform uses signal-based prospecting across multiple channels including email, LinkedIn, and SMS to help sales teams generate qualified meetings and improve conversion rates.
Who founded AiSDR?
AiSDR was founded by Yuriy Zaremba, Oleg Zaremba in 2023.
Who are AiSDR's investors?
AiSDR's investors include Y Combinator, Angel One, Flyer One Ventures, Maiora Rebel Ventures, Pioneer, Rebel Fund, SID Venture Partners, Agrolimen Ventures and 4 more.
Where is AiSDR headquartered?
AiSDR is headquartered in San Francisco, US.