New Heritage Capital, a Boston-based private equity investment firm, made a significant investment in The Execu|Search Group.

Terms were not disclosed; however, Execu|Search’s founder and CEO Edward Fleischman described the investment as “significant” but not 100%. Execu|Search previously had shared ownership among several partners with no private equity funding.

The transaction closed Oct. 5, and the transaction will be structured using Heritage’s private IPO solution.

Execu|Search will retain full operational control of the company, and the existing management team will remain in place. Fleischman said the investment will enable Execu|Search to “become very acquisition-oriented on a nationwide basis.”

“We are very excited about the opportunity to partner with Heritage and see this as the beginning of the next chapter in the success story of The Execu|Search Group,” Fleischman said. “We see our partnership with Heritage as an incredible opportunity to grow our company and build on our impressive organic growth. We also look forward to working with their team to seek acquisition opportunities in the market to further accelerate growth.”

Execu|Search provides recruitment, temporary staffing and workforce management solutions and targets a range of industries. It has 10 offices located in New York, Massachusetts, Connecticut, New Jersey and Florida with more than 250 internal employees. The firm estimates $150 million in revenue in 2016.