Join Us On Our Journey

Hartwell Companies is the umbrella under which accomplished, strategically aligned businesses grow.

To do something well, you’ve got to do it with heart. We seek to start, acquire, or develop outstanding enterprises, recruiting, and fostering scrupulous employees or ensuring a seamless experience for our clients.

Our Companies & Brands

SONCO SAFETY MARKETPLACE

Largest national e-commerce of perimeter security, crowd and traffic control products in the United States.

SignZilla

SignZilla is an one-stop online shop for all large printing needs across the United States.

SONCO Pipe & Tube

Leading supplier of galvanized steel tubing to manufacturers and metal distributors in many diverse consumer and industrial markets.

SONCO PVF

Wholesale distributor of mechanical pipe and tubing, industrial pipes, valves, and fittings.

95 Traffic Safety Supply

Woman-owned, MBE/DBE/SBE/SBR enterprise supplier of high-quality work-zone safety products for the DC, MD, VA and DE areas.

A mentee company of Hartwell Companies.

SONCO Event & Construction Rentals

Trusted provider of crowd control, temporary fence and other quality rental supplies.

Acquired by United Site Services in 2021.

Hartwell Pacific

World player in stainless steel scrap and processing of non-ferrous scrap metal holding the #1 market position in Southeast Asia.

Acquired by Smorgon Steel Group in 2005.