The operational ledger by financial engineers.
String Theory is the deterministic operational ledger built for enterprises and late-stage startups that won’t accept broken financial systems. Unlike legacy ERP platforms and DIY stacks that layer reconciliation on top of flawed data, String Theory replaces the actual ledger, and works at an integral, native level so traceability is built-in.
We don't ask you to trust assumptions or complex data transformations; every dollar has a provable path forward and backward.
The result: millions in recovered capital, dramatically reduced financial risk, and the confidence that your numbers are true.
Contact UsBuilding a better future for financial infrastructure.

Justin is a founder, inventor, and software engineer building String Theory to help companies treat their “invented” currencies—credits, miles, points, and other variable‑value instruments—as first‑class financial data. He’s obsessed with reliability at scale and practical developer workflows, and he’s contributed patterns for environment isolation and agent‑driven operations. Justin lives in Mesa, Arizona.

Parker is a product‑minded engineer and co‑founder of String Theory. Before this, he shipped at Airbnb. He studied Computer Science at UT Austin, and his eclectic path—from science geek to streamer to HVAC tech—shapes his bias for practical solutions and user empathy. Parker lives in Austin, Texas.
String Theory was founded in 2024
Justin gets increasingly frustrated with the state of financial systems.
Justin starts thinking about some core principles for a new kind of ledger.
... 7 years of working on various financial systems ...
The startup Justin is working for folds, and he starts working on a prototype for a new kind of ledger.
String Theory's MVP is launched.
String Theory lands its first customer, processing > $2b per day.
String Theory becomes profitable.
String Theory evolves from an MVP into an enterprise-grade operational ledger.
String Theory lands its first major enterprise license sale, gaining 3 years of runway.
Justin and Parker re-form String Theory as a partnership, serving as co-founders.
String based ledgers are the gold standard for all financial technology.
Ready to see what String Theory will save you?
Join enterprises saving millions annually with deterministic traceability. See String Theory in action with a personalized demo.