Foundation
Software for tracking federal compliance readiness and identifying contracting opportunities.
Maturity not rated
Startup · United States
Arkenstone Defense
HQ Menlo ParkFounded 202551-200 employees
Back-office platform for defense-technology companies covering compliance, accreditation, contracting support, payroll and HR.
Funding3 rounds · $43.6M
- Equity raised
- $43.6M
- Latest
- $35.0MSeed · Jul 7, 2026
Apr 28, 2025Jul 7, 2026
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Jul 7, 2026 | Seed | $35.0M | — | J2 Ventures | — | Reported |
| Jul 25, 2025 | Undisclosed | $600K | — | — | — | Confirmed |
| Apr 28, 2025 | Undisclosed | $8.0M | — | — | — | Confirmed |
- SeedLed by J2 Ventures$35.0MJul 7, 2026
- UndisclosedConfirmed$600KJul 25, 2025
- UndisclosedConfirmed$8.0MApr 28, 2025
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
Systems1
Newest unveiled first. Open a system for its milestone timeline, components and sources.
People1
- William Treseder
Co-founder and COO
Hiring Observations2 observed listings
Remote - Menlo Park, CA · Engineering
Open when checked · Company careers page
Checked Oct 13, 2026
Remote - Menlo Park, CA · Engineering
Open when checked · Company careers page
Checked Oct 13, 2026
A sample of observed listings, not a total vacancy count. Availability may have changed since collection. Categories are inferred from job titles.
Sources11
Show all 11 sources and supporting evidence
Profile5
- 1
PitchBook · Supports Organization · employee range, Organization · linkedin url
“employee_range: 51-200 (profile: 75)”
- 2Regulatory filingArkenstone Defense, Inc. Form D filing index
Supports Organization · country, Organization · hq city
“Business Address 800 EL CAMINO REAL MENLO PARK CA 94025”
- 3
LinkedIn · Supports Organization · employee range, Organization · linkedin url
“employee_range: 51-200 (profile: 51-200 employees)”
- 4
Supports Organization · hq city
“Corporate Office - 800 El Camino Real - Suite 200 - Menlo Park, CA 94025 - United States”
- 5Regulatory filingArkenstone Defense, Inc. Form D (2025-07-29)
Supports Organization · founded year
“<yearOfInc> <withinFiveYears>true</withinFiveYears> <value>2025</value>”
Systems1
- 6
Arkenstone Defense · Supports System
“Start your 14-day free trial of Foundation and explore CMMC Insights and targeted federal opportunities for your organization.”
Funding4
- 7
Tectonic · Jul 7, 2026 · Supports Funding round · amount, Organization, Role
“Arkenstone Defense emerged from stealth with $35M in seed funding led by J2 Ventures to build defense tech’s back office”
- 8
TheSaaSNews · Jul 7, 2026 · Supports Funding round · amount, Organization · ownership
“has raised $35 million in a seed funding round”
- 9Regulatory filingArkenstone Defense, Inc. - SEC Form D (0002063456-25-000002)
U.S. Securities and Exchange Commission · Jul 29, 2025 · Supports Funding round · amount
“Total Amount Sold $ 8,000,000 USD”
- 10Regulatory filingArkenstone Defense, Inc. - SEC Form D (0002069187-25-000001)
U.S. Securities and Exchange Commission · Jul 29, 2025 · Supports Funding round · amount
“Total Amount Sold $ 600,000 USD”
Other1
- 11
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