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Mighty Oak Strong America Investment Company

Updated today

Client assets under management

$394,572,207

Clients

175

50% high-net worth

Advisors

3

of 4 employees

Firm type

Supported

1-3 advisors or $200M+ in AUM

Clients per advisor

58

Typical

Average account size

$2,254,698

About

Mighty Oak Strong America Investment Company (MOSAIC) serves individual clients—including high‑net‑worth and non‑HNW investors—as well as pension plans, trusts, estates, and other entities; as of December 31, 2025 it reported about $398.4 million in assets under management across roughly 175 client accounts and three advisers. The firm provides discretionary portfolio management, ongoing financial planning (and limited‑scope planning engagements), and may engage unaffiliated sub‑advisers to manage all or part of client accounts.

MOSAIC constructs individualized portfolios based on a client risk‑tolerance questionnaire and an investment policy statement, using fundamental analysis and a mix of active and passive strategies, primarily no‑load mutual funds and ETFs, while retaining the ability to employ short sales, margin, and option strategies in certain accounts. The firm also highlights access to institutional asset‑class funds not generally available to retail investors and may recommend a REIT focused on senior floating‑rate commercial real estate loans when it deems that appropriate for a client’s objectives.

A distinctive feature of MOSAIC is its affiliation with DeMuth & Kaufman Professional Management Consultants, a related certified public accounting firm; MOSAIC arranges tax return preparation through that firm for clients with more than $500,000 under management (reimbursing the CPA for those services), a service arrangement that is uncommon among similar advisers. The brochure also discloses a prior Offer of Settlement accepted by the SEC and a Cease‑and‑Desist Order related to a failure to timely file a required regulatory filing, and MOSAIC notes that clients retain the choice to engage the affiliated CPA and that it receives no direct compensation from DeMuth & Kaufman.

Client services

Financial planning Portfolio management Selection of other advisers

Expertise

Active portfolio management Passive / index investing Real estate investing

Fee options

Percentage

$0 - $4 million: 1.00% annually $4 million - $10 million: 0.95% annually $10 million - $25 million: 0.75% annually $25 million+: Negotiable

Project-based

Hourly fees for Limited-Scope Financial Planning range from $215 to $475 per hour.

Other

Account minimum: $250,000 Fee-only: Fees based on percentage of assets under management; no commissions accepted.

Main office location

Mighty Oak Strong America Investment Company

940 Century Drive, Suite B

Mechanicsburg PA 17055-4376, United States

Number of offices

1

Most active in

Pennsylvania · Texas

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 H

CFP®, Series 65, Series 66

Mechanicsburg, PA

Mighty Oak Strong America Investment Company

John Harris is a financial advisor with Mighty Oak Strong America Investment Company, holding Series 65 and Series 66 licenses and three years of industry experience. Prior to joining Mighty Oak Strong America Investment Company, he worked at Carr & Associates for 16 years. He also performs tax preparation services for an affiliated CPA firm, DeMuth & Kaufman Professional Management Consultants. Mighty Oak Strong America Investment Company serves individuals, retirement plans, trusts, estates, charitable organizations, and business entities, offering investment supervisory services, portfolio management, and financial planning. The firm’s investment approach includes fundamental analysis with an emphasis on long-term positions in no-load mutual funds and ETFs, while also employing active strategies when appropriate, and provides clients access to institutional asset-class funds and tax-preparation services through its CPA affiliation.

Active portfolio management Passive / index investing Real estate investing
user avatar

Donald D

CFA®, PFS™

Mechanicsburg, PA

Mighty Oak Strong America Investment Company

Donald Demuth is a CFA® and PFS™ credentialed advisor with 26 years of industry experience. He has been with Mighty Oak Strong America Investment Company since 2003 and is also a partner at DeMuth & Kaufman Professional Management Consultants, a firm he has been affiliated with since 1976. Mighty Oak Strong America Investment Company serves individuals, retirement plans, trusts, estates, charitable organizations, and business entities by providing investment supervisory services, portfolio management, and financial planning. The firm utilizes fundamental analysis with a focus on long-term positions in no-load mutual funds and ETFs, while also employing active strategies when appropriate, and offers clients access to institutional asset-class funds and coordinated tax-preparation services through its affiliation with DeMuth & Kaufman.

Active portfolio management Passive / index investing Real estate investing
user avatar

Glenn M

Series 66

Mechanicsburg, PA

Mighty Oak Strong America Investment Company

Glenn McKenzie is a financial advisor with Mighty Oak Strong America Investment Company, holding a Series 66 designation and 11 years of industry experience. His prior roles include positions at Oakmont Capital Management and operating his own advisory practice. Outside of advisory work, he serves as a management consultant for DeMuth & Kaufman Professional Management Consultants. Mighty Oak Strong America Investment Company serves a range of clients including individuals, retirement plans, trusts, and charitable organizations, offering discretionary investment management and financial planning. The firm employs fundamental analysis with a focus on long-term positions in mutual funds and ETFs, while also utilizing active strategies and access to institutional asset-class funds.

Active portfolio management Passive / index investing Real estate investing
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