Charter Oak Capital Management

What Charter Oak Capital Management does

Charter Oak Capital Management was a privately held, independent wealth management firm founded in 2001 in Portsmouth, New Hampshire, serving high net worth individuals and families across New England. The firm offered an integrated suite of services including financial planning, estate planning, tax planning and preparation, insurance planning, and investment management, delivered through a relationship-based, fiduciary advisory model. Its client base exceeded 1,300 households with approximately $1.5 billion in assets under management at the time of acquisition.

The firm's revenue model was built on recurring AUM-based advisory fees supplemented by planning, tax preparation, and insurance-related fees, consistent with the standard boutique RIA economic model. Client acquisition relied on referrals, professional networks, and community relationships rather than paid marketing channels. The management team, including founder Jeffrey Troiano and principal Emma Bean, had worked together for nearly 25 years, providing the relationship continuity and integrated planning expertise that formed the firm's core value proposition.

On March 31, 2026, Charter Oak was acquired by Mercer Global Advisors, a Denver-based registered investment advisor with approximately $98 billion in client assets. The transaction extended Mercer's New England footprint into New Hampshire, Massachusetts, and Maine, gave Charter Oak advisors equity ownership in Mercer, and provided clients access to Mercer's broader in-house tax, estate, and insurance resources while preserving the local Portsmouth team and client relationships.

Name

Charter Oak Capital Management

Legal name

Charter Oak Capital Management

Website

https://charteroakcm.com

Company type

Private

Founded year

2001

Operating status

Acquired

Headcount range

11–50 employees

Short description

Charter Oak Capital Management is a Portsmouth, New Hampshire-based wealth management firm serving 1,300+ high net worth individuals and families across New England with integrated financial, estate, tax, and investment planning, managing $1.5B in AUM.

Ownership category

akta.pro rank

Product category

Wealth Management

NAICS

Portfolio Management and Investment Advice (523940)

SIC

Investment Advice (6282)

akta.pro primary industry

Advisory Portfolio Management (Non-Discretionary) (FSAAABAD)

akta.pro secondary industry

Estate & Legacy Planning Advisory (FSAEAAAG)

Keywords

• Wealth management services
• Financial planning services
• Estate planning services
• Investment advisory services
• Tax planning services

Headquarters

HQ city

Kennebunk

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Wealth Management Services: Charter Oak Capital Management generated revenue through wealth management fees, likely including AUM-based advisory fees, financial planning fees, and potentially hourly or fixed-fee planning engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Charter Oak Capital Management is a privately owned, independent wealth management firm headquartered in Portsmouth, New Hampshire that provides integrated financial planning, estate planning, tax planning and preparation, insurance planning, and investment management services to high net worth individuals and families across New England. The firm managed $1.5 billion in assets for more than 1,300 clients and operated a relationship-based, fiduciary advisory model. Following its March 2026 acquisition by Mercer Global Advisors, the firm's services continue under the Mercer Advisors umbrella from the Portsmouth location.

Product overview

Charter Oak Capital Management offers a comprehensive suite of wealth management services as an integrated platform combining financial planning, estate planning, tax planning and preparation, insurance planning, and investment management. The firm serves high-net-worth individuals and families, providing holistic advisory services that address multiple aspects of wealth management. Following its acquisition by Mercer Advisors, the firm continues operating from its Portsmouth, New Hampshire location while gaining access to expanded in-house capabilities including tax strategy and estate planning resources.

Differentiator

Problem solved

Functional benefit

Products and services

• Financial Planning
• Estate Planning
• Tax Planning and Preparation
• Insurance Planning
• Investment Management

Quantifiable outcome

• Serving 1,300+ clients with $1.5 billion in assets under management

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Northern Trust Wealth Management: Large incumbent wealth manager serving HNW/UHNW clients with a fiduciary model, integrated investment management, estate, and trust services — overlapping with Charter Oak's service suite at significantly greater scale.
• Mercer Advisors: National RIA platform and parent acquirer of Charter Oak, with $98B in client assets and an integrated HNW offering across financial planning, tax, estate, and investment management — directly comparable business model at much larger scale.
• Brown Brothers Harriman Wealth Management: Private, partnership-structured wealth manager serving HNW families and foundations with bespoke investment management, estate, and planning services — a comparable relationship-based fiduciary model.

Direct peers

• Aspiriant: Independent RIA serving HNW individuals and families with integrated financial planning, tax, and investment management — closely comparable in client focus, fiduciary approach, and boutique scale.
• GenSpring Family Offices: Multi-family office (now part of J.P. Morgan Private Client) serving affluent families with integrated investment, tax, estate, and lifestyle services — directly comparable to Charter Oak's comprehensive HNW offering.
• Edelman Financial Engines: Large national RIA providing financial planning, investment management, and wealth advisory services to HNW individuals — comparable integrated HNW advisory model operating at national scale.
• Mariner Wealth Advisors: Large national RIA serving HNW clients through integrated financial planning, tax, estate, and investment services — comparable consolidated advisory model with significant acquisition activity in the RIA roll-up space.
• Carson Group: Growing RIA platform serving HNW clients and advisors through an integrated wealth-management offering and equity ownership model — comparable in fiduciary positioning and active acquirer profile.
• Bessemer Trust: Privately held, multi-family-office-style wealth manager serving HNW and ultra-HNW families with integrated investment, estate, and tax planning — closely comparable service mix and client segment to Charter Oak.
• Abbot Downing: Wells Fargo's HNW brand serving ultra-affluent families with bespoke investment, estate, and planning services — comparable integrated offering targeted at a similar client segment.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/merceradvisors
• LinkedInlinkedin.com/company/mercer-advisors
• Instagraminstagram.com/mercer_advisors

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Charter Oak Capital Management