SimSpace: Funding, Investors & Team (Oct 2026)
SimSpace is a new cyber security software company that provides advanced network emulation and modeling tools designed for realistic cyber training, assessment, and strengthening. The company's Cyber Range software suite offers network security and risk management managers efficient tools to replicate a company's actual network for training, evaluation, response, and improvement using realistic usage models and simulated user environments.
SimSpace has raised $84.0M across 2 funding rounds on record, the most recent an undisclosed round of $39.0M announced in Oct 2025.
That round is above the $6.2M median round size for Information Technology companies tracked on FundedIQ over the last two years.
SimSpace Company Profile and Key Stats
Latest funding round on record: Oct 2025.
SimSpace Funding Rounds
SimSpace raised $45.0M in an undisclosed round announced in Dec 2023.
1.8 years later, an undisclosed round of $39.0M was announced in Oct 2025.
SimSpace Founders and Leadership Team
Contact details for the SimSpace team: 1 of 2 have an email address on file, 1 has a LinkedIn profile.
Start 14-day free trial →SimSpace Funding Compared to Other Information Technology Startups
SimSpace's latest round of $39.0M is above the median round in Information Technology. Medians cover the last 24 months of disclosed rounds.
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SimSpace Funding FAQs
What does SimSpace do?
SimSpace is a new cyber security software company that provides advanced network emulation and modeling tools designed for realistic cyber training, assessment, and strengthening. The company's Cyber Range software suite offers network security and risk management managers efficient tools to replicate a company's actual network for training, evaluation, response, and improvement using realistic usage models and simulated user environments.
How much funding has SimSpace raised?
SimSpace has raised $84.0M across 2 rounds on record. The most recent is an undisclosed round of $39.0M announced in Oct 2025.
When did SimSpace last raise funding?
SimSpace's most recent funding round on record is an undisclosed round of $39.0M, announced in Oct 2025.
Who founded SimSpace?
FundedIQ lists Lee Rossey (Founder) at SimSpace.
Who is the CEO of SimSpace?
Peter Lee is listed as CEO at SimSpace.
Where is SimSpace headquartered?
SimSpace is based in Boston, Massachusetts, United States.
How many employees does SimSpace have?
SimSpace is in the 251-500 employee band.
How does SimSpace's funding compare to other Information Technology startups?
SimSpace's latest round of $39.0M is above the $6.2M median round size for Information Technology companies on FundedIQ across 3,146 tracked companies over the last two years.
About FundedIQ's SimSpace Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for SimSpace is left off this page rather than filled in.
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