Our Services

Harnden Commercial Brokers is one of the leading real estate services firms specializing in commercial real estate leasing and investment in Southern Maine.

Harnden provides all of the resources and sophistication of larger firms with the customer service of a boutique.

Tenant Representation

We focus on tenant representation and work with the leading companies throughout Greater Portland.

As trusted advisors we assist our clients in developing the best real estate strategy that aligns with their business goals.

Buyer Representation

We also provide advice and assistance to a select group of investors including acquisition and disposition strategies for their portfolios.

How to Engage:

STEP 1: Email or call us about a building you are looking to acquire or sell

STEP 2: Set up a meeting to discuss pricing, market conditions, marketing strategy, etc.

STEP 3: Hire us as your broker to list or represent your asset


We specialize in providing creative leasing solutions and the market intelligence and insight that our clients require to weigh their options and execute the transaction that best fits their near and long term strategy.

We are committed to providing the latest market intelligence, experienced insight and creative leasing solutions ensuring that our clients execute the transaction that best fits their short- and long-term goals.

Our principal broker, Jim Harnden, routinely represents a quarter to a third of all of the largest and most sophisticated tenants in the market each year.

We understand the importance of your real estate leasing decisions and all of the factors that must be considered. First, it is a major financial commitment.

Our leasing decision involves such factors as:



Amenities and supporting retail

Accessibility parking


Proximity to your competitors

Below are several clients that we have recently represented.

Satisfied Clients

“We needed expertise and a real advocate when we were approaching our lease expiration date. Jim was an invaluable partner leading an exhaustive market analysis while educating us along the way. In the end he was able to negotiate a very well thought-out deal for us, including a 20% reduction in rent and a significant tenant improvement allowance. I feel Jim was always looking out for our business and ultimately got us to our goal of executing a long term lease within budget.”

John Doyle

VP Marketing & Corporate Communications, Medical Mutual

“I have known and worked with Jim for over 20 years. He always fully understands Lathrop Asset Management’s needs and goals. I know I can always reach out to him with questions or concerns, and I will always be heard, which is not always the case in the commercial real estate business. I appreciate his dedication and hard work representing Lathrop Asset Management over the many years.”

Pete Gellerson

President, Lathrop Asset Management