Rhumbix

Rhumbix was founded in 2014 in San Francisco by Zach Scheel and Drew DeWalt, both U.S. Navy veterans (Scheel served as a Civil Engineer Corps officer). Scheel holds a BSE in Mechanical Engineering and Mathematics from Duke University and an MBA from Stanford GSB; DeWalt holds a BBA from the University of Notre Dame and an MBA from Stanford GSB. The pair built a mobile-first platform to digitize the paper-based, low-tech world of construction field reporting -- starting with GPS-verified digital timekeeping for hourly craft labor and expanding into production tracking, time-and-materials tracking, daily construction reports, and analytics (branded Field Analytix / later the "Field Intelligence Platform"). The founding thesis, in Scheel's words, was that "the most valuable data on job sites comes from workers themselves."

Rhumbix raised a $6 million Series A in November 2015 led by Greylock Partners, with Greylock partner Jerry Chen joining the board and other participants including Brick & Mortar Ventures, UJ Ventures, and Stanford professor Ray Levitt. Over the following years the company grew its product suite and customer base among general contractors, trade contractors, and owners in commercial, industrial, and mission-critical construction. In September 2021 Rhumbix closed an $11 million growth round co-led by Blackhorn Ventures and Tenfore Holdings, with participation from existing investors Greylock, Glynn Capital, and Brick & Mortar Ventures (Darren Bechtel) plus new investor TFX Capital, bringing disclosed total funding to roughly $49 million at the time. The company reported more than 100% year-over-year growth in 2021, with customers processing over $1.5 billion in construction payroll and logging more than 34 million work hours on the platform that year, and it expanded its leadership bench, appointing former PlanGrid/Oracle/Taleo sales executive Bill Smith as President of Commercial Operations (Sept 2021) and adding Susan Heystee (Chair of Ouster, board member of ChargePoint) to its board (Nov 2021).

In October 2022, Dysruptek -- the innovation/investment arm of AEC firm The Haskell Company -- made an additional strategic investment (amount undisclosed), reflecting continued interest from strategic construction-industry investors; this brought estimated total funding to roughly $54.5 million per third-party aggregators. In April 2025, Rhumbix added Jigisha Desai -- EVP and Chief Financial & Strategy Officer of Granite Construction, and a board member at Tutor Perini -- to its board, underscoring continued independent operation and construction-industry ties as of that date.

Business model

B2B SaaS sold to general contractors, trade/subcontractors, and owners in the construction industry; mobile app for field workers paired with web-based analytics/reporting for office/project management staff.

Subscription SaaS (per-project/per-seat licensing typical of construction field-management software); exact public pricing and ARR not disclosed in sources reviewed.