Constellation NewEnergy, a supplier of energy, natural gas and energy-related services to commercial, industrial and institutional customers nationwide, has leased 14,701 square feet at 116 Huntington Ave. in Boston.

The company is relocating from its existing location at 800 Boylston St. in Boston, according to a statement.

"116 Huntington Avenue is a prime location in the heart of Boston’s Back Bay just steps from a wealth of amenities as well as transportation options including the commuter rail, subway and Massachusetts Turnpike," said Duncan Gratton, partner at FHO Partners. "Despite increases in available office space across Massachusetts, 116 Huntington Avenue continues to attract new tenants like Constellation NewEnergy with its unrivaled location, Class-A designation and competitive rates."

"We are delighted to welcome Constellation NewEnergy to 116 Huntington’s impressive tenant roster, and we applaud their decisive move to snap up the only remaining availability of that size at the property," said Alan Rubenstein of Broadway Partners, which owns the building.

In July, Broadway ceded control over Waltham’s Bay Colony Corporate Center, allowing it to fall into foreclosure, in order to keep control of a group of properties including 116 Huntington Ave. in Boston, Banker & Tradesman has reported.

The Constellation NewEnergy lease brings the building to 97 percent occupancy, according to a statement.

Gratton represented Broadway Partners and Gil Hutzler, senior vice president of CB Richard Ellis, and Bill Crean, senior vice president/partner of CB Richard Ellis New England, represented Constellation NewEnergy.