Grist Mill Exchange
Commercial-data marketplace for government and national-security buyers, connecting agencies to vetted third-party data providers with pre-negotiated licensing. A Core4ce subsidiary.
Grist Mill Exchange (GME) is a commercial-data marketplace subsidiary of Core4ce launched March 17, 2022 as the first spin-out from Core4ce's innovation incubator ('The Forge'). Headquartered in Reston, VA, GME operates 'The Mill,' a platform with 350+ vetted commercial data providers, letting government and national-security agencies browse, evaluate, and acquire third-party data under a single pre-negotiated contract instead of negotiating separately with each vendor. In December 2025 GME launched metered API access and partnered with Reality Defender to embed deepfake/synthetic-media detection into its data products, and the company has been selected for NATO's DIANA decision-superiority accelerator.
Overview
- Headquarters
- Reston, Virginia, USA
- Founded
- 2022
- Employees
- 11-50
- Total funding
- $5M
- Stage
- Undisclosed
- Status
- active
- Domains
- Commercial-data marketplace, National security, Data-as-a-service
- Website
- www.gristmillexchange.com
Founders3
- FounderJeff KunkleFounding member and SVP of Engineering at Grist Mill Exchange; co-founded and sold two prior startups (Near Infinity, Visallo) before joining Kensho Technologies and Core4ce.
- FounderTodd HarbourCore4ce co-founder, Managing Partner, and CTO who leads Core4ce's 'The Forge' innovation incubator; credited with launching Grist Mill Exchange as its first spin-out. Previously Chief Data Officer for New York State (2016-2018) and a federal government data leader; holds multiple master's degrees (Rutgers, National Defense University, University of Management and Technology, University of Maryland) plus a bachelor's from Maryland; author of 4 books on data management and data leadership.
- FounderJennifer ObernierCEO of Grist Mill Exchange; 15+ years of national-security leadership including oversight roles in Department of the Navy intelligence/security and OUSD(I&S) reform work.
Investors2
- FundVeteran Ventures CapitalVeteran-founded venture capital firm investing in veteran-led and national-security-relevant startups via its Veteran Fund I.
- FundFirst InWashington, D.C.-based veteran-led security-technology venture fund; co-investor, alongside Core4ce and Veteran Ventures Capital, in Grist Mill Exchange's $5M raise (April 2022).
Cap table0
Approximate ownership by holder. Indexed holders link to their records.
Raised per round
Percentages marked ~ are not disclosed. Some are a generic VC-pattern model (founders/team weighted heaviest, option pool lightest, other holders evenly) sized to whatever's left undisclosed — a standard industry shape, not this company's actual cap table.
| Holder | Instrument | Ownership |
|---|---|---|
| Strategic/VC | ~33.3% | |
| Strategic/VC | ~33.3% | |
| Strategic | ~33.3% |
Contracts0
No linked records yet.
Frequently asked
- What does Grist Mill Exchange do?
- Grist Mill Exchange (GME) is a commercial-data marketplace subsidiary of Core4ce launched March 17, 2022 as the first spin-out from Core4ce's innovation incubator ('The Forge'). Headquartered in Reston, VA, GME operates 'The Mill,' a platform with 350+ vetted commercial data providers, letting government and national-security agencies browse, evaluate, and acquire third-party data under a single pre-negotiated contract instead of negotiating separately with each vendor. In December 2025 GME launched metered API access and partnered with Reality Defender to embed deepfake/synthetic-media detection into its data products, and the company has been selected for NATO's DIANA decision-superiority accelerator.
- Where is Grist Mill Exchange headquartered?
- Grist Mill Exchange is headquartered in Reston, Virginia, USA and was founded in 2022.
- How much funding has Grist Mill Exchange raised?
- Grist Mill Exchange has raised $5M in disclosed funding.
- What does Grist Mill Exchange specialize in?
- Grist Mill Exchange works across Commercial-data marketplace, National security, Data-as-a-service.
Sources & citations6
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Selected among 10 innovators for NATO DIANA Decision Superiority for NATO Warfighters challenge (€100,000)
NATO: NATO's DIANA selects innovators to drive decision superiority for the AllianceVerified2026-07-13 - 2
Launched by Core4ce as a data marketplace for government/national-security customers, headquartered in Reston, Virginia
Core4ce: Core4ce Launches Grist Mill Exchange, a Data MarketplaceVerified2022-03-17 - 3
Dr. Jennifer Obernier is CEO of Grist Mill Exchange; she joined in February 2022 as SVP of Delivery, secured the company's first production contracts, and was later promoted to CEO
Grist Mill Exchange: About — Grist Mill ExchangeVerified2026-07-20 - 4
Grist Mill Exchange launched metered API access for government commercial-data procurement and announced a partnership with Reality Defender to integrate deepfake/synthetic-media detection into its data marketplace
PR Newswire: Grist Mill Exchange Launches Metered API Access to Accelerate Government Access to Mission Data, Announces Partnership with Reality Defender for Deepfake ProtectionVerified2025-12-11 - 5
GME launched March 17, 2022 as the first spin-out from Core4ce's 'The Forge' incubator; 'The Mill' platform lists 350+ vetted commercial data providers
Core4ce: Core4ce Launches Grist Mill Exchange, A Data MarketplaceVerified2022-03-17 - 6
Veteran Ventures Capital's Veteran Fund I invests in Grist Mill Exchange LLC; Grist Mill Exchange has raised $5M, with Core4ce and First In also participating
EIN Presswire: Veteran Ventures Capital Invests with Grist Mill ExchangeVerified2022-04-07