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New Hampshire

175 Canal Street, Suite 401
Manchester, NH 03101
MAIN   +1 603 623 0100
FAX  +1 603 626 1983

500 Market Street, Suite 9
Portsmouth, NH 03801
MAIN   +1 603 433 7100
FAX  +1 603 431 0028

How We Started

Colliers International proudly traces its roots back to a local firm founded 1898. Today, our offices in 68 countries are aligned under a single brand and leadership, providing our clients with best-in-class resources while maintaining our historical flexibility and local ties.

Colliers was one of the first truly global commercial real estate organizations, formed more than 30 years ago as a network of independent firms. As client needs evolved, Colliers embraced the the opportunity to build an integrated global platform of professionals and property services to meet the demand for globally consistent service, accountability and integration.


Local History

Colliers | New Hampshire has a deep rooted history in the local community. As a leader in commercial real estate for nearly a quarter century, our mission remains the same: to provide clients the best service and highest return on their commercial real estate activities.

Originally founded in 1990 as Coldstream Real Estate Advisors, Inc., the partners focused on a mission of sharing collective expertise and providing best-in-class commercial real estate services to New Hampshire and northern New England from their offices in Bedford and Portsmouth, NH.

In the early 2000s, they affiliated with Grubb & Ellis, to better serve clients’ multi-market requirements. Having compiled an impressive track record over the next decade, the firm once again increased its already extensive expertise and service offering by its partnership with Eaton Partners, Inc.

Eaton Partners, Inc., with roots dating back to 1985, proved a perfect complement to Grubb & Ellis | Coldstream Real Estate Advisors. Joining with this highly respected, client-centric real estate service firm allowed the newly formed firm, Grubb & Ellis | Northern New England, to offer an even broader range of services, including commercial property management, brokerage and financing services to its clients.

Did You Know?

Colliers was one of the first global companies to expand operations in Asia, Central Europe and Latin America. We're committed to providing our clients with access to emerging markets around the world.

New Hampshire