Ressl AI builds AI workers for field services that automate back-office operations for trades businesses. The company deploys AI agents handling lead response, estimating, procurement, and administrative tasks on top of existing legacy software. Target industries include HVAC, plumbing, electrical, collision repair, and roofing. The company is based in San Francisco and is part of Y Combinator's Winter 2026 batch.
Ressl AI
ActiveAI Workers for Field Services
Total raised
$500K
1 round
Stage
Seed
Jan 2026
Team
1-10
since 2026
Pricing
—
Founded
2026
San Francisco, United States
Agent-ready
—
AI workers that automate back-office operations for trades businesses
Automated lead response
Estimating automation
Procurement automation
Administrative task automation
Operation on top of existing legacy field-service software
Coverage of HVAC, plumbing, and electrical trades
Support for collision repair and roofing businesses
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2026 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What does Ressl AI automate?
- Ressl AI deploys AI workers that automate back-office operations for trades businesses, including lead response, estimating, procurement, and admin. These agents take over routine operational tasks that would otherwise consume staff time.
- Does it replace my existing software?
- No, Ressl AI works on top of existing legacy software. Its agents operate alongside the tools trades businesses already use rather than requiring a full system replacement.
- Which industries does it serve?
- Target industries include HVAC, plumbing, electrical, collision repair, and roofing. These are field-service trades with heavy back-office and lead-handling needs.
- Who is Ressl AI for?
- It is built for trades and field-service businesses that want to automate back-office operations. It suits owners looking to reduce manual admin without overhauling their existing software.
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