The Proto Group
Open Doors. Close Deals.

About The Proto Group

The Proto Group LLC is a licensed real estate broker in Connecticut, New York, Massachusetts and Rhode Island.

Local and regional expertise means nothing if you can’t close a deal. At The Proto Group we don’t just claim to know the market and the people that keep it alive – our record proves it. So whether you have a property you need to lease or sell or you’re looking for the right location for your business or development project, talk to us. Our team will get it done. We look forward to telling you about all the opportunities that are out there for you.

The Proto Group Story

After eleven years in the commercial real estate business, Lou Proto wanted to take a new approach to brokerage. In 1999, he started The Proto Group and ushered in a new era of transparency for New England real estate (long before business transparency was a trend).


Founded on an unprecedented level of information sharing and the strong relationships, The Proto Group and its clients have thrived even during even the toughest economic times. Lou has put together a tightly knit staff, each one considered an expert in the field. Together, they share a vast network of connections, including landlords, tenants, commercial brokers, and regional leaders. Which means with The Proto Group, clients always have direct access to people with deep and current knowledge of both the market and the industry.


It is this combination of relationships, and expertise that has made the difference between starting deals – and closing them.

The Proto Group LLC is a licensed real estate broker in Connecticut, New York, Massachusetts and Rhode Island.