How much funding has Summation raised?

Summation has raised $35.0M in total funding, most recently a Series A round.

Who are Summation's investors?

Summation's investors include Benchmark, Kleiner Perkins.

Where is Summation headquartered?

Summation is headquartered in Bellevue, Washington, United States.

Summation

See Clearly. Decide Confidently.

Bellevue, United States · Founded 2024 · $35.0M raised

Headquarters: Bellevue, Washington
Employees: 11–50
Founded: 2024
Business Model: B2B

Website: summation.ai
Total Funding: $35.0M
Last Round: $35.0M Series AOct 2025
Rounds: 1

About

Summation is an enterprise AI platform founded in 2024 by Ian Wong and Ramachandran Ramarathinam, formerly of Opendoor, to solve the problem of unreliable data slowing executive decision-making. The platform combines an AI Calculation Engine, Verified Tasks, and a Deep Dive agent orchestration capability that deploys AI agents to explore thousands of questions in parallel. Summation integrates with existing ERP, CRM, EPM, and data warehouse systems, delivering audit-ready results in real time and going live in weeks rather than months. The company targets enterprise finance and operations teams who need decision-ready insights without manual analysis overhead, and is SOC 2 Type II certified.

Summary

Summation is a company based in Bellevue, United States, founded in 2024. It has raised $35.0M in total across 1 round, most recently a $35.0M Series A round in Oct 2025. Investors include Benchmark and Kleiner Perkins.

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