Market Street Trust Company Email Format

Financial ServicesNew Hampshire, United States51-200 Employees

Market Street Trust Company operates as a client-owned, shared family office within the financial services industry, focusing on long-term wealth stewardship for multigenerational families. It offers integrated wealth management across financial planning and strategy, investment oversight, tax and compliance planning, risk management, philanthropic strategy and administration, and governance and education. The firm serves about 45 family groups, delivering customized guidance aimed at sustaining family wealth across generations.

Based in Portsmouth, New Hampshire, Market Street Trust Company traces its heritage to 1909, when it began as a single-family office for the Houghton family, founders of Corning Incorporated. It has since evolved into a shared family office serving multiple families and operating as a mid-sized firm in the financial services industry. In December 2025, Aguilar was appointed vice president and chief investment officer.

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