American Investment Services Inc logo

American Investment Services Inc

Updated today

Client assets under management

$671,048,256

Clients

359

44% high-net-worth

Advisors

6

of 10 employees

Firm type

Team

5-30 advisors or >$500M in AUM

Clients per advisor

60

Typical

Average account size

$1,869,215

About

American Investment Services, Inc. (AIS) provides discretionary wealth management to individuals (including high net worth clients), charitable organizations, and corporations, and also offers institutional advisory services. Its core offerings include the Professional Asset Management (PAM) program, the High‑Yield Dow strategy, sub‑advised Dimensional Unified Managed Accounts (UMAs), and a quarterly Investment Guide publication.

The firm follows a structured, passive asset‑allocation approach grounded in Modern Portfolio Theory, typically implementing portfolios with low‑cost mutual funds and ETFs from providers such as Vanguard, Dimensional, State Street, and BlackRock. PAM clients receive portfolio construction, ongoing monitoring and rebalancing, and incorporated financial planning and consulting with annual updates and reporting, while UMA clients access DFA’s strategy implementation and model monitoring.

AIS is notable for managing over $1 billion of client assets with a relatively small advisory team, resulting in a higher than typical asset load per advisor for firms in this category. It is also affiliated with the American Institute for Economic Research and provides access to DFA‑only products and Dimensional UMAs—features that shape its investment implementation and distinguish its service model from many peers.

Client services

Portfolio management Selection of other advisers

Expertise

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting

Want help finding the right advisor?

Answer a few questions to see advisors matched to you.

Fee options

Percentage

$0 - $1,000,000: 1.00% annually $1,000,001 - $5,000,000: 0.60% annually on assets in this tier $5,000,001 - $10,000,000: 0.40% annually on assets in this tier $10,000,001 - $20,000,000: 0.25% annually on assets in this tier $20,000,001 - $150,000,000: Flat 0.275% annually on total AUM up to $150 million $150,000,001+: 0.15% annually on assets above $150 million

Other

Account minimum: $300,000 Fee-only: Annual asset-based fees as per tiered schedule; no commissions or performance fees.

Main office location

American Investment Services Inc

250 Division Street

Great Barrington MA 01230, United States

Number of offices

1

Most active in

Arizona · California · Connecticut · Florida · Georgia · Illinois · Indiana · Louisiana · Maine · Massachusetts · Michigan · Nebraska · Nevada · New Hampshire · New Jersey · New York · North Carolina · Ohio · Oregon · Pennsylvania · South Carolina · Texas · Vermont · Virginia · Washington

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

John B

ChFC®, Series 65

Great Barrington, MA

American Investment Services Inc

John Barry is a ChFC® and Series 65 credentialed financial advisor with American Investment Services Inc, where he has worked since 1994, totaling 32 years at the firm and 21 years of industry experience. He is based in Great Barrington, MA, and is part of a six-advisor team. American Investment Services is a fee-only SEC-registered investment adviser that offers discretionary portfolio management and financial planning to individuals, high net worth clients, charitable organizations, and institutions. The firm employs a structured, passive investment approach grounded in Modern Portfolio Theory, utilizing low-cost mutual funds and ETFs, and manages approximately $1.3 billion in assets.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
user avatar

David S

CFA®, Series 63

Great Barrington, MA

American Investment Services Inc

David St. Peter is a CFA® charterholder with 16 years of industry experience, currently serving at American Investment Services Inc since 2008. He is based in Great Barrington, MA, and holds the Series 63 designation. American Investment Services is a fee-only, SEC-registered investment adviser that offers discretionary portfolio management and financial planning to individuals, high net worth clients, charitable organizations, and institutions. The firm employs a structured, passive investment approach grounded in Modern Portfolio Theory, utilizing low-cost mutual funds and ETFs, and manages approximately $1.3 billion in assets across six advisors.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
user avatar

Matthew B

CFP®, Series 63, Series 66

Great Barrington, MA

American Investment Services Inc

Matthew Burnell is a CFP® with 11 years of industry experience, currently serving as an advisor at American Investment Services Inc. He has previously worked at Cetera Investment Advisers LLC, Hedley & Co PLLC, and Marvin and Company, P.C., CPA’s. American Investment Services is a fee-only, SEC-registered investment adviser that provides discretionary portfolio management and financial planning to individuals, high net worth clients, charitable organizations, and institutions. The firm employs a structured, passive investment approach based on Modern Portfolio Theory, utilizing low-cost mutual funds and ETFs, and offers proprietary strategies including a High-Yield Dow model and access to Dimensional Fund Advisors’ Unified Managed Accounts.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
user avatar

A. Mackenzie W

Series 66

Great Barrington, MA

American Investment Services Inc

A. Mackenzie Waggaman is a financial advisor with American Investment Services Inc, holding a Series 66 credential and bringing 20 years of industry experience. Waggaman has been with American Investment Services since 2004. American Investment Services is an SEC-registered, fee-only investment adviser serving individuals, high net worth clients, charitable organizations, and institutions. The firm employs a structured, passive investment approach based on Modern Portfolio Theory, utilizing low-cost mutual funds and ETFs, and offers discretionary portfolio management through programs such as its Professional Asset Management and High-Yield Dow strategies.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
user avatar

Charles M

Series 63, Series 65

Great Barrington, MA

American Investment Services Inc

Charles Murphy is a financial advisor with American Investment Services Inc, holding Series 63 and Series 65 licenses and having 20 years of industry experience. He has been with American Investment Services since 2007. American Investment Services is an SEC-registered, fee-only investment adviser serving individuals, high net worth clients, charitable organizations, and institutions. The firm employs a structured, passive investment approach based on Modern Portfolio Theory, utilizing low-cost mutual funds and ETFs, and manages approximately $1.3 billion in assets across six advisors.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
user avatar

Matthew S

Series 63, Series 65

Great Barrington, MA

American Investment Services Inc

Matthew Svirida is a financial advisor at American Investment Services Inc with 19 years of industry experience. He holds Series 63 and Series 65 licenses and has been with American Investment Services since 2005. American Investment Services is an SEC-registered, fee-only investment adviser serving individuals, high net worth clients, charitable organizations, and institutions. The firm employs a structured, passive investment approach grounded in Modern Portfolio Theory, utilizing low-cost mutual funds and ETFs, and offers discretionary portfolio management alongside financial planning.

Wealth management Passive / index investing Retirement income strategy Tax-loss harvesting
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")