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Unisson

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AI agents that automate B2B software implementation

Winter 2026Founded 20262 peopleSan Francisco, CA, USA
AI insightcan contain mistakes
AI Customer Success AgentsSaaSB2B SaaS companies, implementation teamsMedium competition
Moat
Subject-matter expert agents learn any product in 20 minutes; Slack/SMS/email integration; 24/7 availability reduces CS headcount.
Key risk
Customer success tool market fragmented; competing against Gainsight, Totango, manual CS teams; adoption friction.
Why now
CS team budgets squeezed; AI agents capable of product knowledge transfer; SaaS CS standardization.
Competitors
Gainsight, Totango, traditional CS tools, internal CS teams

About

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.

Founders Β· 2

Varun Mathur
Varun MathurFounder/CEO

Co-founder and CEO of Unisson. Built a VLM that outperformed Gemini 2.5 Pro on video understanding and sold into Fortune 5. Previously led product & engineering for agent products, growth and VLM research at Ambient.ai (YC W17).

Tom Achache
Tom AchacheFounder/CTO

Co-founder and CTO of Unisson. Previously led Perception and built VLAs at Chef Robotics, deploying 50+ robots in production that served over 80M meals. Before that, led Perception at Ambient.ai (YC W17).

Launch

Launched on Y Combinator Β· Feb 2026
View launch post β†—

Hands-on AI subject-matter experts on tap so your team can move faster and scale

Unisson builds an AI-native platform that provides hands-on AI subject-matter experts for customer-facing teams (Implementation, CS, and Sales Engineering) to learn a client’s product in 15 minutes, gather context from tools, and execute onboarding, change management, and migrations end-to-end. It enables 24/7 access via Slack, text, or email and includes a built-in ticketing system to track trends and improve operations.

Formerly β€œInUnison”, β€œUnisson”, β€œunisson”

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