NEFCO Corporation acquired Sigma Engineering International to expand NEFCO’s engineering division, executive VP Matthew Gelles announced.

Founded in 1995, Rhode Island-based Sigma Engineering provides services for architects, engineers, utilities, municipalities, plants, construction and steel fabricators. Tel: 401 726-8400 Web: SigmaStructural.com

Founded in 1981, NEFCO is a family-owned construction supply company. NEFCO supplies struts, anchors, rod, hardware and pipe hangers, including heavy hex nuts and threaded rod. NEFCO has 13 facilities in seven eastern states and is headquartered in Connecticut. Tel: 860 290-9044 Web: GoNEFCO.com