Market Street Trust Company
Market Street Trust Company is a multi-family office headquartered in Portsmouth, United States.

Market Street Trust Company
Market Street Trust Company is a multi-family office headquartered in Portsmouth, United States. Founded in 1909 to steward the Houghton family’s wealth created through Corning Incorporated’s glass manufacturing enterprise, the firm has evolved into a shared platform serving multiple generations of affluent families. It offers comprehensive investment, trust, tax, and estate services while maintaining client ownership and a long-term perspective across its advisory and administrative functions.
General information
Firm type
Multi Family Office
Year founded
1909
AUM
—
Location
Region
North America
Country
—
City
Portsmouth
Corporate office
2 International Drive Suite 301
Frequently asked questions
What is Market Street Trust Company?
Market Street Trust Company is a multi family office headquartered in Portsmouth.
When was Market Street Trust Company founded?
Market Street Trust Company was founded in 1909.
Where is Market Street Trust Company headquartered?
Market Street Trust Company is headquartered in Portsmouth, in the North America region.
What does Altss track for Market Street Trust Company?
Altss maintains an OSINT-verified profile of Market Street Trust Company covering investment focus (ESG policy, ticket size, target IRR, currency preference, regional focuses, industry focuses, technological focuses), team (service providers and advisors), deals (company deals and fund commitments), assets (real estate, public market positions, private companies, art and cultural holdings, philanthropy and foundations), and network (club memberships, associations, and event participation). Detailed values are available to Altss subscribers.
What is Market Street Trust Company's website?
Market Street Trust Company's public website is www.marketstreettrust.com. Verified contact details for principals and decision-makers are available to Altss subscribers.
What type of firm is Market Street Trust Company?
Market Street Trust Company is classified by Altss as a Multi Family Office within the North America region.
How does Altss source intelligence on Market Street Trust Company?
Altss combines OSINT (open-source intelligence) with regulatory filings, public disclosures, and licensed data partners. Source provenance is tracked to support compliance-ready research workflows.
How fresh is the Altss profile for Market Street Trust Company?
Market Street Trust Company's profile is part of Altss's continuous-refresh dataset, with a full update cycle at least every 30 days and priority changes applied as new information is verified.
Company types
Confirmed
Pipeline
Indicated
Negative
Industry focuses
Confirmed
Pipeline
Indicated
Negative
Regional focuses
Confirmed
Pipeline
Indicated
Negative
Technological focuses
Confirmed
Pipeline
Indicated
Negative
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Get accessInvestment stages
Confirmed
Pipeline
Indicated
Negative
Emerging interests
Hard exclusions
ESG policy
Direct deal program
Emerging manager LP program
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Get accessManager maturity preference
Confirmed
Indicated
Ticket size (USD M, min/max)
Preferred fund size (USD M, min/max)
Investment horizon (years, min/max)
Target IRR (%)
Max leverage
Liquidity terms
Currency preference
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Get accessPhilanthropy-only themes
Political donations
Service Providers & Advisors
| Category | Firm | Years Active | Primary Contact |
|---|---|---|---|
Company Deals
| Date | Company | Type | Sector | Geography | Role | Amount | Deal Lead | Co-investors | Insight |
|---|---|---|---|---|---|---|---|---|---|
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Get accessFund Commitments
| Date | Fund | Strategy | Geography | Role | Fund size | Vintage |
|---|---|---|---|---|---|---|
Club Memberships and Associations & Advisors
| Organization | Role | Since | Notes |
|---|---|---|---|
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Get accessEvent & Conference Participation
| Event | Role | Date | Location |
|---|---|---|---|
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Continuous refresh with full update cycles at least every 30 days.
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