A founder-led investment company building and supporting the next generation of clean-mobility, infrastructure, and community-driven enterprises.
SH&3M Investment is a private holding and investment company headquartered in the Pacific Northwest, dedicated to backing ideas that move people, energy, and opportunity.
Founded by Helio Mateus, the firm draws years of operational leadership across Fortune 500 field services, infrastructure, and emerging clean-mobility ventures.
Our thesis is simple: durable companies are built at the intersection of resilience, purpose, and patient capital. We work alongside founders the way a partner should — close to the work, slow to take credit, and committed across cycles.
Our work spans operating companies we found, build, and back — across mobility, energy, and underserved markets.
On-demand diagnostics, charging, and repair for the next era of electric mobility.
Two-sided technology platforms connecting skilled operators with the customers who need them.
Repeatable operating models designed for nationwide expansion across the United States.
Bringing modern mobility infrastructure to East, West, Southern, and North African markets. Twenda brings you charging sessions, on-demand mobile charging, EV and e-bike rentals, e-motorbike taxi rides, and certified technicians — Charge it, Ride it, Rent it and Fix it. all in a single app. .
A nationwide network of mobile EV services in the United States — and a bridge of infrastructure, training, and opportunity reaching into the markets that have long waited for it.