Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Unisson

Active · AI agents that automate B2B software implementation

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 7
  • went through YCProgram · this site+4
  • team of 2Team size · YC's directory+2.5

A sum of public facts, not a judgement and not investment advice.

Competitors

AIImbueShared: handle complex, complex task, agentSPC 2021San FranciscoStartup →AIDatafruitShared: software implementation, agentYC S25San FranciscoStartup →AIHyperdeskShared: automate b2bYC W23San FranciscoStartup →AIAgencyShared: customer success, b2b, agentAI Grant Batch 4Startup →AILab0Shared: software implementation, b2b, automateYC X26BengaluruStartup →
Companies closest to Unisson
Company
ImbueShared: handle complex, complex task, agentSPC 2021Not statedAI
DatafruitShared: software implementation, agentYC S25ActiveAI, Devtools
HyperdeskShared: automate b2bYC W23ActiveAI
AgencyShared: customer success, b2b, agentAI Grant Batch 4 +1Not statedAI
Lab0Shared: software implementation, b2b, automateYC X26ActiveAI

Adjacent

OtherAcquiredNateroShared: b2b software, customer success, automateYC S12San FranciscoStartup →Developer toolsInactiveAbbotShared: customer success, customer facing, automateYC S21San FranciscoStartup →OtherMotleyShared: customer success, automateSeedcamp 2025Startup →AIChatOverflowShared: agent learn, complex taskspeedrun SR007San FranciscoStartup →AIVarosShared: gather requirement, agent, textYC S21San FranciscoStartup →
Companies next to Unisson
Company
NateroShared: b2b software, customer success, automateYC S12AcquiredOther
AbbotShared: customer success, customer facing, automateYC S21InactiveDevtools
MotleyShared: customer success, automateSeedcamp 2025Not statedOther
ChatOverflowShared: agent learn, complex taskspeedrun SR007Not statedAI, Devtools
VarosShared: gather requirement, agent, textYC S21ActiveAI, Data

Also from W26 in AI

All of W26
AI/dev/fast/dev/fast is the AI-native code forgeYC W26San FranciscoStartup →AI10x ScienceThe AI-native platform for next-generation protein characterization.YC W26San FranciscoStartup →AI21stUI building blocks for the agentic internetYC W26San FranciscoStartup →AIAemonThe Forward-Deployed AI Research EngineerYC W26San FranciscoStartup →AIAgentic FabriqThe control plane for AI agents.YC W26San FranciscoStartup →AIAlt-XBuilding the best venue for private markets exposure.YC W26Los AngelesStartup →
Company
/dev/fast/dev/fast is the AI-native code forgeteam of 4ActiveAI, Devtools
10x ScienceThe AI-native platform for next-generation protein characterization.team of 5hiringActiveAI
21stUI building blocks for the agentic internetteam of 3ActiveAI, Devtools
AemonThe Forward-Deployed AI Research Engineerteam of 3hiringActiveAI, Devtools
Agentic FabriqThe control plane for AI agents.team of 2ActiveAI
Alt-XBuilding the best venue for private markets exposure.team of 2ActiveAI, Data

Founders

  • Varun MathurFounder/CEO
  • Tom AchacheFounder/CTO

About Unisson

Unisson is building trusted AI subject-matter experts for teams that are responsible for customer deployments (technical customer success, implementation, sales engineering). Within 20 minutes, our agents learn to use any product and can be used by teams in Slack, text, or email. Our agents gather requirements and context from existing tools enabling them to handle complex tasks like customer health audits, onboarding, product administration, and custom integrations. With Unisson, customer-facing teams have 24/7 access to an AI SME, allowing them to scale and save thousands of hours.

YC batch
W26 · Winter 2026
Status, per YC
Active
Category
AI
Team size
2
Location
San Francisco, CA, USA
Founded
2026
Checked
7h ago

Unisson in W26: 199 companies, 81% AI

LinkedIn

Unisson: questions

Which YC batch was Unisson in?

Unisson was in Y Combinator's Winter 2026 batch (W26).

Is Unisson still active?

Y Combinator lists Unisson as active.

Who founded Unisson?

Unisson's founders, as listed on its YC page: Varun Mathur (Founder/CEO), Tom Achache (Founder/CTO).

Where is Unisson based?

Unisson lists San Francisco, CA, USA as its location on YC's directory.