Preconstruction planning and estimating Companies

Bancroft Construction

Bancroft Construction is a collaborative, full-service contractor delivering planning, design-assist, and building services across government, healthcare, education, cultural, and commercial sectors.

Barton Malow

A U.S.-based construction services company offering preconstruction, design and delivery, and self-perform trades across multiple markets.

BELL Construction Company

Full-service contractor delivering design-build and related construction services for public and private-sector projects.

Delphi Construction, Inc.

Delphi Construction is a multi-market commercial general contractor and construction manager delivering client-centered projects through collaborative partnerships.

Holder Construction

Nationwide construction management firm built on trust, teamwork, and a builders-at-heart ethos.

JRM Construction Management, LLC

Employee-owned construction services firm providing management, contracting, and design-build solutions for corporate and institutional clients.

Layton Construction

Layton Construction is a nationwide, full-service construction firm delivering agile, collaborative solutions.

MRJ Constructors

MRJ Constructors is a client-focused general contractor delivering commercial and industrial construction with collaborative project management.

STO Building Group

STO Building Group is a family of construction firms delivering multi‑sector projects across the US, Canada, the UK, Ireland, and the Netherlands.

Swinerton Incorporated

National construction partner delivering integrated, safety-first building solutions.