SimSpace builds sophisticated cyber ranges that mirror a customer’s live network, enabling continuous, AI-powered training, live-fire exercises, detection engineering, and technology performance measurement. The platform supports use cases such as AI model training, agent validation, and security-tool optimization, helping organizations move beyond compliance check-boxes to stress-test people, processes, and technologies in lifelike attack scenarios. Clients include federal, state, and local governments, large state universities, and Fortune 100 companies. Led by CEO Peter Lee and headquartered in Boston, the company positions its range as a means to model attack surfaces and validate human/agent teams under high-stress conditions. With its latest capital infusion, SimSpace plans to accelerate global expansion and develop additional use cases tailored to large enterprise and public-sector needs. No revenue or user figures were disclosed in the article, but the company has previously attracted support from investors such as L2 Point Management.

Total raised

$84M

Funding rounds

3

Latest round

Equity

Latest activity

Oct 2025