Galinstan
European Union
For group treasurers at European banks.
Treasury optimization that runs inside the bank, with audit evidence for every result.
Read moreAbout
A product studio for regulated industries.
Banneker takes a product from the problem to production for FinTech, LawTech, RegTech and nonprofit organizations. Strategy, design and engineering, as one team.
Bridging discovery and cutting-edge design.
FOUNDER
Antwain Cross
CISA · CISM · CISSP · PMP
Banneker is led by Antwain Cross — capital-markets platform delivery inside major banks, paired with security and risk governance. Every engagement gets that operating experience: what to hand to a model, how to build it to spec, and how to prove it's working.
In 2026 that experience designed and built products in four sectors: FinTech, LawTech, RegTech and nonprofits.
Why Banneker?
| Pain point | What Banneker does |
|---|---|
| Strategy firms advise, and someone else builds. | One team, from the problem to production. |
| Governance arrives after the product ships. | Governance designed in from day one. |
| The work stops at a deck. | The product is the deliverable. |
Selected work
LawTech MSO platform
Latin America
For small law firms in Latin America.
Planning, review and billing in the palm of the hand, under the firm's own brand.
Read moreJethro Justice
New York
For parents in family court without a lawyer.
Incorporation to a live product in under eight weeks, with a Case Binder that shows what a case needs and what is missing.
Read moreA free 30-minute consultation.
A call about the problem, then a written scope, then a price for that scope.