On AI Lounge since Nov 2026
Mark Riffey
Member #4,821FounderL1CEO, ENERCALC
We build design and workflow tools for civil and structural engineering firms.
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Plugged In ×2Connected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 2 sources (GitHub, LinkedIn, X or a website) in Settings
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About
Mark Riffey is the CEO of ENERCALC, a Missoula-based company that builds design and workflow tools for civil and structural engineering firms. ENERCALC has produced structural engineering calculation software since 1982, and more than 6,000 firms use it, most of them small. Mark also lists investor and advisor to small business owners among his roles on LinkedIn.
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Experience
CEO, ENERCALC, LLC | Investor | Advisor to small business owners
CEO · ENERCALC
Chief Operating Officer · ENERCALC
VP Development · Window Book, Inc.
Information Technology Infrastructure Specialist · ENERCALC
Founder · Rescue Marketing, Inc.
Founder · Granite Bear Development
Systems Programmer, Co-Dir R&D · MacKinney Systems
