It quietly runs underneath the world's largest identity systems - the layer that turns identity chaos into one clean, real-time source of truth.
Unify · Observe · Act on ALL Identity Data
The logo lights a pyramid - the old computing glyph for a directory tree. San Rafael, CA. Est. 1995.
Who has access to what? It sounds like a question a five-year-old could answer. Inside a Fortune 100 enterprise it is closer to an archaeology dig. Identity data sits in fifty places - an aging Active Directory here, a cloud HR system there, a database nobody remembers buying, a SaaS app someone expensed in 2019. Each one tells a slightly different story about the same person. None of them agree.
This is the room Radiant Logic walks into. Not with a pitch to rip everything out, but with a quieter promise: leave your systems where they are, and we'll make them speak the same language. The company built its name on a single, slightly nerdy idea - that you can put a layer over all that scattered identity data and turn it into one coherent picture, in real time, without breaking anything underneath.
The industry has a name for the mess: identity sprawl. Every merger inherits another directory. Every cloud migration leaves the old system running "just in case." Every department buys its own tools. The result is technical debt that compounds quietly until an auditor, or an attacker, goes looking. Radiant Logic's whole reason for existing is to make that sprawl legible - to treat identity not as a login problem but as a data problem, which is a subtler and more useful way to see it.
It is the least glamorous corner of enterprise software. It is also, increasingly, the corner everything else depends on. Zero trust, least privilege, continuous compliance - all the fashionable security phrases assume you already know who everyone is and what they can touch. Most organizations don't. That gap is the business.
Before you can secure identity, you have to be able to see it. Most tools act on bad data. Radiant Logic fixes the data first.— The Radiant Logic thesis, in one line
Radiant Logic was founded in 1995 by Michel Prompt, with Claude Samuelson running engineering. Prompt was already a serial entrepreneur - he'd started Matesys in France back in 1986 - but his lasting contribution arrived in 2000, when Radiant Logic shipped the first virtual directory. The concept: instead of physically merging directories (painful, risky, slow), present a single virtual view that joins them on the fly.
That idea earned Prompt a place as co-inventor of the category and a clutch of U.S. patents in semantic data representation. It also gave the company a 25-year head start on a problem the rest of the industry only recently noticed was urgent. Identity used to be plumbing. Then breaches taught everyone that the plumbing was the attack surface.
What's striking is how patient the bet was. For years a virtual directory was a specialist's tool - bought by the architects who actually understood why merging directories was a disaster waiting to happen. The mainstream caught up slowly, then all at once, as cloud adoption multiplied the number of places an identity could live. The thing Radiant Logic shipped in 2000 turned out to describe the problem of 2025 almost exactly. Founders rarely get to be that early and still be standing.
The platform's whole job is to make identity data usable - first by unifying it, then by reading it, then by acting on it. The recent additions matter: with backing from TA Associates and, since April 2025, Ridgeview Partners, the company poured its energy into AI. RadiantOne AI and its assistant AIDA turn a unified data layer into something closer to a colleague - one that reads the whole identity picture and tells you, in plain language, where the trouble is.
Connects and normalizes disparate sources - legacy directories, cloud apps, databases - into complete, accurate identity, delivered in whatever format each consuming system needs.
Turns unified identity into actionable insight: orphaned accounts, over-privileged users, access nobody can explain. Feeds governance tools decisions they can actually audit.
A generative assistant working at the identity layer. It anticipates threats, automates user access reviews, and now opens live Slack or Teams channels the moment something looks wrong.
Continuous real-time monitoring of identity-based risk, with composable remediation - so the answer to "who has access to what" comes with a button to fix it.
More than 30% of the Fortune 100 use Radiant Logic. So do roughly 60% of U.S. Federal Cabinet agencies - including, by public account, the Intelligence Community, DHS, the State Department, NIH, the IRS, USDA, FAA, and DOJ. When the buyers are this risk-averse, the product tends to be either invisible or indispensable. Radiant Logic aims for both.
Government work is its own proof of seriousness. Federal agencies don't adopt infrastructure on a whim; they certify it, audit it, and route it through distributors like Carahsoft. That Radiant Logic clears those bars - and keeps clearing them across administrations - says more about the product than any analyst quadrant could. It is, by design, the kind of software you only notice when it isn't there.
The commercial side mirrors the public one. These are not customers chasing the newest thing; they are organizations with decades of accumulated systems and no appetite for a rip-and-replace. Radiant Logic's pitch fits that reality precisely: keep what you have, unify what it knows. Estimated annual revenue sits around $26.6M, modest against the household names of identity but concentrated in accounts that almost never leave.
Michel Prompt and Claude Samuelson start Radiant Logic in California.
Radiant Logic debuts the first virtual directory - inventing a category and earning patents along the way.
Growth capital arrives to scale the RadiantOne platform globally.
The company launches its AI engine and generative assistant, and acquires Brainwave GRC to deepen identity analytics.
A strategic growth investment (April) funds global expansion and identity security posture management.
RadiantOne adds real-time observability; AIDA moves into Slack and Teams as an embedded analyst.
By solving customer challenges with advanced AI-driven analytics and continuous real-time monitoring, we empower enterprises to reduce identity-based risk.— Dr. John Pritchard, CEO, Radiant Logic
Technology and teamwork pointed squarely at customer success.
The commitment is to value delivered, not contracts signed.
Built on patented inventions, refined continuously.
Enabling innovation and security at global scale.
Return to that security team, still staring at fifty systems that won't agree. Only now there's a layer between them and the chaos. The question - who has access to what - gets typed into a chat window. AIDA answers, cites the data, flags the three accounts that shouldn't exist, and offers to fix them. The archaeology dig becomes a search bar.
That is the quiet shift Radiant Logic has spent 25 years engineering. Not a flashier dashboard, not a louder alert - just identity data that finally tells one true story. In a market obsessed with acting fast, the company made a stranger bet: that the smartest move is to get the facts straight first. The Fortune 100 and most of the U.S. cabinet seem to agree.