William Stewart, Managing Director

“Bill is very adept at analyzing and understanding opportunities and information. He is able to synthesize information and create a clear and concise action plan for his clients.” This skill is invaluable when working with emerging and middle market companies.

First Street brings together Bill’s passions and experience. First Street works with entrepreneurs and owners of emerging and mid-size companies. The companies are the cornerstone of American entrepreneurship, innovation, and job creation.

“First Street challenges me in every transaction to come up with the best solution for the company and the people involved. It brings together all the skills I’ve built over my thirty year career working with people, companies, strategy and financial transactions.”

  • Integrity, persistence and goal orientated
  • Reliable, Responsive
  • Connector
  • Passion for successful outcomes
  • Hope for future generations to achieve
  • Compassion and a willingness to help

Prior to founding First Street, Bill was a Management Consultant with Advance Leadership Development helping companies manage people, process and performance. At Advance Leadership, Stewart aligned people and process with the strategies and goals of the company creating significant value and great success. Prior to working with Advance Leadership Development, he founded and sold two executive search firms, as well as a commercial real estate business that provided a work-force housing solution in the Portsmouth, New Hampshire area.

Before making his home in the Portsmouth area, Bill was with JP Morgan Chase where he developed his financial skills working on Private Banking and Middle Market commercial transactions. His education includes completing the JP Morgan Chase Corporate Finance Credit Training Program and its Management Development Program. He has a Bachelor’s Degree in business with a concentration in Finance from Boston University.

Bill lives in New Castle, New Hampshire with his wife and three children. He enjoys sailing his J24, and coaching his children’s sports and academic teams. Bill is a Selectman and an elected member of the Town Budget Committee in New Castle, NH . He was also the Chairman of the New Castle Conservation Commission. He and his wife are great supporters of non-profits, he is presently on the Board of Trustees for the Nature Conservancy in New Hampshire.