Built by people who know what a Tuesday night in estimating looks like.
$20 billion in bids processed. In the trenches with specialty contractors every day.
RhinoDox started because the bidding process was broken — and the people closest to it knew it.
Estimators copying proposals from Word templates. Principals making go/no-go calls on gut feel. Data scattered across spreadsheets that nobody trusts. The same mistakes, repeated project after project, because there was no system to catch them.
We built the platform first. Bid management, proposals, analytics, document organization — the foundation that specialty contractors use every day. Not a point solution. Not an overlay on someone else’s system. The whole workflow.
Then we built LARRY on top of it.
LARRY reads the specs, contracts, and addenda your team doesn’t have time to read — and surfaces the risks that matter, filtered by who’s asking and when in the bid. 100+ criteria, 8 categories, 4 minutes. Every finding cites the exact page.
Justin Ullman
Justin didn’t come to construction tech from Silicon Valley. He came from watching subcontractors lose money on things they shouldn’t have missed — and knowing that the tools they were using weren’t built for how they actually work.
RhinoDox started from one question: what would it look like if estimators had a system that was actually built for them? Not a GC tool repurposed for subs. Not a document reader with a logo on it. A platform that understands the bid process from ITB to close-out.
$20 billionin bids later, the answer is RhinoDox — and now LARRY.
Justin is also president of the University of Chicago Cancer Research Foundation Board and guitarist for the band SWEENEY, because not everything has to be about specs.
Travis Whelan
Travis has been building RhinoDox since 2017. Purdue CS grad, came up through enterprise software (Sara Lee, Gallagher, SpringCM/DocuSign), and brought that discipline to a construction platform that needed to be fast, reliable, and usable by people who don’t have time to learn new software.
Under Travis, the engineering team built the platform that processes $20 billion in bids, the AI pipeline that powers LARRY, and the infrastructure that keeps it all running for contractors who can’t afford downtime during bid season.
He builds software the way subs build buildings — practical, on schedule, and it works when you turn it on.
We’d rather show you than tell you.
Bring a bid you’re working on. See the findings. No commitment.