Istari
Arlington, US · Founded 2022 · Delaware corporation · 5 known investors
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Istari Digital provides an agentic engineering platform that connects tools, teams, and environments to coordinate, validate, and certify complex mission-critical systems across distributed and classified engineering environments. It serves organizations in air, sea, space, energy, and transportation sectors, aiming to shorten validation cycles while maintaining security and control over sensitive data.
Founders & leadership
Istari was founded in 2022 by William Roper, Jr..

Board


Investors · 5
How we know: Icon Ventures's portfolio page · board seat on SEC Form D · the VCSheet dataset · Not right? Tell us
How we know: No Talking Capital's portfolio page · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
How we know: Teamworthy Ventures's portfolio page · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$49.7M disclosed across 2 rounds · 2024–2026
▶$22.6MraisedJul 2026 · 3 investors · Other TechnologyRule 506(b)
- Thomas McCabeExecutive Officer
- William Roper, Jr.Executive Officer, Director
- Christopher BensonExecutive Officer, Director
- Joseph HorowitzDirector
- Thomas LehrmanDirector
- Offering amount
- $40M
- Amount sold
- $22.6M
- First sale
- Jul 2026
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$27.1MraisedJan 2025 · 11 investors · Other TechnologyRule 506(b)
- Christopher BensonExecutive Officer
- William Roper, Jr.Executive Officer, Director
- Joseph HorowitzDirector
- Thomas E. McCabeExecutive Officer
- Offering amount
- $35.5M
- Amount sold
- $27.1M
- First sale
- Dec 2024
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Related companies · 2
Companies working in the same space as Istari.
Frequently asked questions
- What does Istari do?
- Istari Digital provides an agentic engineering platform that connects tools, teams, and environments to coordinate, validate, and certify complex mission-critical systems across distributed and classified engineering environments. It serves organizations in air, sea, space, energy, and transportation sectors, aiming to shorten validation cycles while maintaining security and control over sensitive data.
- Who founded Istari?
- Istari was founded by William Roper, Jr. in 2022.
- Who are Istari's investors?
- Istari's investors include Icon Ventures, No Talking Capital, Radius Capital Ventures, Teamworthy Ventures, Aero X Ventures.
- How much funding has Istari raised?
- Istari has disclosed $49.7M raised across 2 rounds.
- Where is Istari headquartered?
- Istari is headquartered in Arlington, US.




