Gilbert Investment Management logo

Gilbert Investment Management

Updated today

Client assets under management

$13,046,443

Clients

54

11% high-net-worth

Advisors

2

of 2 employees

Firm type

Supported

1-4 advisors or >$200M in AUM

Clients per advisor

27

Low

Average account size

$241,601

About

The firm provides personalized, fee-only investment management and financial planning to individuals, high net worth clients, trusts, estates, charitable organizations, municipalities and small businesses. It does not accept commissions or sell commissioned products and offers services such as investment management, tax planning, retirement planning and estate-planning coordination (with referrals to attorneys as needed).

Investment strategy is a core–satellite approach that uses passive index funds and ETFs as the portfolio core, supplemented by actively managed funds where the firm sees potential added value, and portfolios are globally diversified. The firm manages both discretionary and non-discretionary accounts, places trades under limited trading authorization when authorized, and delivers periodic portfolio and net worth statements (and, on request, related tax-preparation materials).

Noteworthy for a firm of its size, the adviser operates with two advisors across two offices while managing roughly $14.2 million for a small client roster, and it services municipal and trust clients and at times serves as trustee or investment advisor to related trusts. The firm also avoids custody and soft-dollar arrangements, declines proxy-voting authority, requires professional credentials and maintains a documented business-continuity and information-security program.

Client services

Portfolio management

Expertise

Wealth management Passive / index investing

Want help finding the right advisor?

Answer a few questions to see advisors matched to you.

Fee options

Percentage

$0 - $200,000: Higher percentage rate (exact rate not specified) $200,000+: 1.00% annually or less based on discretion

Other

Account minimum: $200,000 total portfolio size Minimum fee: The firm may waive minimum fees or charge lesser fees at discretion; no specific minimum fee amount stated Fee-only: Firm is strictly fee-only, no commissions or other compensation accepted

Main office location

Gilbert Investment Management

20 Mckenna Ter

Boston MA 02132, United States

Number of offices

2

Most active in

Maine · Massachusetts

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

Advisors at this firm

user avatar

Wayne S

Series 63, Series 66

Brunswick, ME

Gilbert Investment Management

Wayne Schaab is a financial advisor at Gilbert Investment Management in Portland, ME, with 42 years of industry experience. He holds Series 63 and Series 66 designations and has previously worked at Kovack Securities, Inc. and Delta Equity Services Corporation. Gilbert Investment Management provides personalized, fee-only investment management and financial planning to individuals, high net worth clients, trusts, estates, charitable organizations, municipalities, and small businesses. The firm employs a core–satellite investment strategy using passive index funds and ETFs supplemented by actively managed funds, offering globally diversified portfolios while managing both discretionary and non-discretionary accounts.

Wealth management Passive / index investing
user avatar

Donald G

Series 63, Series 65

Brunswick, ME

Gilbert Investment Management

Donald Gilbert is a financial advisor at Gilbert Investment Management in Boston, MA, with 20 years of industry experience. He holds Series 63 and Series 65 licenses and has previously worked at Delta Global Asset Management and Delta Equity Services Corporation. Gilbert Investment Management provides personalized, fee-only investment management and financial planning services to individuals, high net worth clients, trusts, estates, charitable organizations, municipalities, and small businesses. The firm employs a core–satellite investment approach combining passive index funds and ETFs with actively managed funds, offering globally diversified portfolios and both discretionary and non-discretionary account management.

Wealth management Passive / index investing
Warmer team member

Not sure where to start?

We'll help you think it through — whether you ultimately need an advisor or not.

Warmer helps you compare advisors clearly — so you can choose with confidence.

Find your advisor
Discover

Compare top advisor firms by metric, firm size, and location.

Warmer provides personalized recommendations and introductions to independent fiduciary advisors. We do not supervise advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.

Each advisor listed on our site is an independent fiduciary responsible for their own advice. Warmer may receive fees from advisors for participation or referrals; these fees are paid by advisors and do not affect the fees clients pay for advisory services.

For advisor listings, we rely on sources including public filings and data provided by advisors, and we cannot guarantee that all information is current or accurate. Please review an advisor's Form ADV and do your own diligence before entering into an advisory relationship.

By using our service, you agree to Warmer's Terms of Service and Advisory Agreement and Privacy Policy. Logos provided by Logo.dev

© 2026 Warmer Holdings Inc. ("Warmer")