# Tesora Ai Inc. (b20250205723)

> Tesora AI Inc. is a Delaware-formed, California-registered AI software startup founded in 2025 that builds auditable AI agents and infrastructure for actuarial analysis, insurance pricing/rating, ingestion, and related workflows.

Company page on Leadbay: https://mad-max.leadbay.ai/company/tesora.ai · loaded 2026-10-28

## At a glance

- Website: https://tesora.ai
- Team based in: San Francisco (ycombinator.com and 3 more)
- Founded: 2025 (ycombinator.com and 2 more)
- Founders: Vivek Rao, Federico Reyes Gómez
- Industry: Software Development
- Employees: 5 (employees and founders, investors not counted; ycombinator.com; Sources disagree: 2 (ycombinator.com), 4 (pitchbook.com), 7 (tesora.ai, a company database))
- Total funding: $500k (tesora.ai and 1 more)
- Backed by: Y Combinator, Foundation Capital, Andreessen Horowitz, 10VC, DeVC, Skarlo
- Seen in its site's code: Google Workspace (MX alt1.aspmx.l.google.com) (read 2026-10-30)
- Email: founders@tesora.ai
- Address: 325 BERRY STREET APT 105
SAN FRANCISCO, CA 94158

## What it sells, to whom

- Tesora AI Inc. is a Delaware-formed, California-registered AI software startup founded in 2025 that builds auditable AI agents and infrastructure for actuarial analysis, insurance pricing/rating, ingestion, and related workflows. ([b2bhint.com](https://b2bhint.com/en/company/us-ca/tesora-ai-inc--B20250205723), [tesora.ai](https://tesora.ai/), [ycombinator.com](https://www.ycombinator.com/companies/tesora))

## Why it stands out

- Y Combinator Summer 2025 company; YC lists Tesora as active. ([tesora.ai](https://tesora.ai/about), [ycombinator.com](https://www.ycombinator.com/companies/tesora))
- Executive Partner of the Casualty Actuarial Society for the 2026–2027 program year. ([tesora.ai](https://tesora.ai/about), [ycombinator.com](https://www.ycombinator.com/companies/tesora))
- Competes with: No definitive competitor list was published. Adjacent/overlapping alternatives include Akur8, Milliman, and procurement/sourcing automation platforms; these should be treated as indicative rather than confirmed direct competitors. ([tesora.ai](https://tesora.ai/), [app.dealroom.co](https://app.dealroom.co/companies/tesora_1), [pitchbook.com](https://pitchbook.com/profiles/company/969669-73))

## Products and services

- **Tesora Workbench**: specialist AI agents for actuarial workflows, including ingestion, analytics, comparative raters, and rater deployment. ([tesora.ai](https://tesora.ai), [tesora.ai](https://tesora.ai/privacy), [tesora.ai](https://tesora.ai/))
- **Tesora Compute API**: generally available API for actuarial computation/workflows. ([tesora.ai](https://tesora.ai), [tesora.ai](https://tesora.ai/privacy), [tesora.ai](https://tesora.ai/))
- **Tesora Compute add-in for Microsoft Excel**: generally available Excel integration. ([tesora.ai](https://tesora.ai), [tesora.ai](https://tesora.ai/privacy), [tesora.ai](https://tesora.ai/))
- Integrations with Microsoft 365/Excel/SharePoint, Databricks, Snowflake, cloud storage, and REST APIs. ([tesora.ai](https://tesora.ai/privacy), [tesora.ai](https://tesora.ai/), [ycombinator.com](https://www.ycombinator.com/companies/tesora))
- Core capabilities include loss-run and policy-data ingestion, source-traceable analytics, comparative rating, pricing-model/rater construction, audit checks, and deployment. ([tesora.ai](https://tesora.ai/privacy), [tesora.ai](https://tesora.ai/), [ycombinator.com](https://www.ycombinator.com/companies/tesora))

## Customers and markets

- **Markets**: Property-and-casualty insurance carriers, especially specialty carriers. ([tesora.ai](https://tesora.ai/), [ycombinator.com](https://www.ycombinator.com/companies/tesora), [linkedin.com](https://linkedin.com/company/tesora-ai))
- **Markets**: Reinsurers. ([tesora.ai](https://tesora.ai/), [ycombinator.com](https://www.ycombinator.com/companies/tesora), [linkedin.com](https://linkedin.com/company/tesora-ai))

## Team

- Vivek Rao, Founder/CEO · [LinkedIn](https://www.linkedin.com/in/vivek-r-928871173)
- Federico Reyes Gómez, Founder/CTO · [LinkedIn](https://www.linkedin.com/in/federico-reyes-gomez)

Backed by: Y Combinator, Foundation Capital, Andreessen Horowitz, 10VC, DeVC, Skarlo

## Where to find more

- [This page in Markdown, for agents](https://mad-max.leadbay.ai/company/tesora.ai.md)

## Decision makers

- [Vivek Rao](https://mad-max.leadbay.ai/person/vivek-rao--tesora.ai.md), Founder/CEO · [LinkedIn](https://www.linkedin.com/in/vivek-r-928871173)
- [Federico Reyes Gómez](https://mad-max.leadbay.ai/person/federico-reyes-gomez--tesora.ai.md), Founder/CTO · [LinkedIn](https://www.linkedin.com/in/federico-reyes-gomez)

Work emails and direct phones come with a Leadbay account: https://wow.leadbay.ai/?register=true

Where it comes from: 8 sites read (tesora.ai, b2bhint.com, ycombinator.com, app.dealroom.co, pitchbook.com, aifintechindex.com, fundraisingfox.com, fondo.com).

## Best angle

2026-10-28 · Headcount: Headcount up 75% in a year (1 source)

## Best way in

- LinkedIn message to Vivek Rao: Founder/CEO · profile linked from the company's record
- LinkedIn message to Federico Reyes Gómez: Founder/CTO · profile linked from the company's record
- Write to founders@tesora.ai (generic): A shared mailbox, in Leadbay's record, verified 2026-03-29

## Signals: what happened

- 2026-10-28 · Headcount: Headcount up 75% in a year (1 source: [A company database](https://tesora.ai/))
- 2025-10-09 · Fundraising: Pre seed · $500k (1 source: [A company database](https://tesora.ai/))

## Working on now

- Building frontier AI agents and an auditable Workbench for property-and-casualty actuarial work.
- Serving specialty carriers, reinsurers, and MGAs; core workflows include loss-data ingestion, pricing, comparative raters, rating deployment, reserving, and close.
- Turning Excel, R, Python, and SERFF filing PDFs into tested, versioned, callable raters and APIs, with human author/reviewer/approver controls.
- Expanding the product around secure customer deployments, source citations, reproducible audit trails, and model routing rather than replacing customers’ existing Claude/Codex/Copilot workflows.
- Current ecosystem and talent push: CAS Executive Partner for the 2026–2027 program year, student Workbench access, and presence at the CAS Annual Meeting.

From: [Tesora: Frontier AI for Actuaries](https://tesora.ai/), [Pricing & rater deployment: From filed manual to callable API](https://tesora.ai/rating), [About Tesora: our mission and the team](https://tesora.ai/about), [Tesora: Frontier AI for Actuaries | Y Combinator](https://www.ycombinator.com/companies/tesora), [Tesora Workbench: the agent harness behind actuarial work](https://tesora.ai/workbench)

## Summary

Tesora AI Inc. is a San Francisco-based company founded in 2025 that provides an AI-native actuarial workbench for property and casualty insurers, reinsurers, and managing general agents [1][2][3]. It automates data assembly, loss modeling, reserving, and rate filing while maintaining human oversight through a reproducible audit trail [1][4][5]. The company was founded by Vivek Rao and Federico Reyes Gomez [1][3]. It is backed by investors including Y Combinator, Foundation Capital, Andreessen Horowitz, and others [1][4][3]. Tesora competes with specialized software providers like Akur8, WTW, and Guidewire by offering a broader lifecycle solution [4]. As of October 1, 2026, Tesora serves as an Executive Partner of the Casualty Actuarial Society for the 2026-2027 program year [6][4].

[1]: https://www.ycombinator.com/companies/tesora "Tesora: Frontier AI for Actuaries | Y Combinator"
[2]: https://aifintechindex.com/vendors/tesora "Tesora: capabilities and pricing | AI FinTech Index"
[3]: https://fundraisingfox.com/companies/tesora "Tesora — Investors & Founders | Fundraising Fox"
[4]: https://tesora.ai/llms.txt "tesora.ai"
[5]: https://tesora.ai/comparative "Comparative raters: rebuild a competitor rate plan and price your book through it"
[6]: https://tesora.ai/about "About Tesora: our mission and the team"
[7]: https://tesora.ai/ "Tesora: Frontier AI for Actuaries"
[8]: https://fondo.com/blog/tesora-launches "🚀 Tesora Launches: AI Procurement Analysts for Advanced Industries 🏭 ✈️ 🚗 🛰️ | Fondo"

## Sources

- [Tesora Ai Inc. (b20250205723)'s website](https://tesora.ai)
- [Pricing & rater deployment: From filed manual to callable API](https://tesora.ai/rating)
- [Tesora Workbench: the agent harness behind actuarial work](https://tesora.ai/workbench)
- [Tesora company information, funding & investors | Dealroom.co](https://app.dealroom.co/companies/tesora_1)