AdFi
MI

Mason Investment Advisory Services Inc

SEC Registered

Personal Approach. Proven Process.

Reston, VAhttps://masoncompanies.com703-716-6000
Assets Under Management
$5B–$25B
Employees
72
Office Locations
1 office
Total Accounts
1147

About the firm

Mason Investment Advisory Services is an investment advisory firm that provides financial planning and investment management for individuals and families, as well as institutional consulting and OCIO services for foundations, endowments, corporate funds, and retirement plans. The firm keeps its client-to-advisor ratio low to remain accessible and ensures clients are fully informed throughout the planning and investing process.

Firm Focus

Client segments reported on the firm's SEC Form ADV — applies to all advisors at the firm.

IndividualsHigh Net WorthPension/Profit SharingState/Municipal

Areas of expertise

Financial PlanningInvestment ManagementInstitutional ConsultingOCIOEndowmentsFoundationsRetirement PlansWealth ManagementPrivate Clients

Services

Private client financial planning and investment management; institutional consulting and OCIO (Outsourced Chief Investment Officer) services.

Who they serve

Individuals, families, foundations, endowments, corporate funds, and retirement plans; clients in 46 states and Washington, D.C.

Client segmentClientsAssets managed
Individuals (Non-HNW)304$118M
High Net Worth Individuals759$6.8B
Charitable Organizations5$420M
State/Municipal Entities71

Leadership

William Noyes Mason
CHAIRMAN
Scott Stanley George
PRESIDENT
William Noyes Mason
SHAREHOLDER
Christopher Lee Schreiner
CHIEF OPERATING OFFICER

Office locations

1 office in 1 state
VA
RestonHQ

Advisors at this firm

33 advisors in the directory

Sarah Grace Avery
Investment Adviser Representative
Investment Adviser Rep
Keenan Malcolm Bailey
Investment Adviser Representative
Investment Adviser Rep
Sarah E Baker
Investment Adviser Representative
Investment Adviser Rep
Richard Stanley Baldwin III
Investment Adviser Representative
Dual-registered
Daniel Robert Corno
Investment Adviser Representative
Investment Adviser Rep
William Michael Courson
Investment Adviser Representative
Dual-registered
Sarah Ann Casey
Investment Adviser Representative
Dual-registered
Gregorio Torres Druehl
Investment Adviser Representative
Dual-registered
William Jesse Dwenger
Investment Adviser Representative
Investment Adviser Rep
David Charles Engler
Investment Adviser Representative
Dual-registered
Caleb James Fry
Investment Adviser Representative
Dual-registered
Claudelle Gehy
Investment Adviser Representative
Dual-registered
Scott Stanley George
Investment Adviser Representative
Dual-registered
David Robert Gilbert
Investment Adviser Representative
Dual-registered
Allison Lori Berlenbach Gormier
Investment Adviser Representative
Dual-registered
Jason M Hicks
Investment Adviser Representative
Dual-registered
Blaine William Homan
Investment Adviser Representative
Dual-registered
Mark Alexander Haynes
Investment Adviser Representative
Dual-registered
Devin Scott Johnson
Investment Adviser Representative
Investment Adviser Rep
Barbara Michelini Joyce
Investment Adviser Representative
Dual-registered
Sharon L Kampner
Investment Adviser Representative
Dual-registered
Brian Michael Kelley
Investment Adviser Representative
Dual-registered
Peter Bryan Kokolus
Investment Adviser Representative
Dual-registered
Matthew Jon Krause
Investment Adviser Representative
Dual-registered
Loizos Sergios Kapnisi
Investment Adviser Representative
Dual-registered
Derek Lesnak
Investment Adviser Representative
Investment Adviser Rep
Shayna Amalie Lebowitz
Investment Adviser Representative
Dual-registered
David Walter Odiorne III
Investment Adviser Representative
Dual-registered
Thomas Rolfe Pudner
Investment Adviser Representative
Dual-registered
Stefan Nicholas Patchan
Investment Adviser Representative
Investment Adviser Rep
Eric Charles Rife
Investment Adviser Representative
Dual-registered
Christopher Lee Schreiner
Investment Adviser Representative
Dual-registered
Randon Bruce Tagg
Investment Adviser Representative
Dual-registered

Regulatory & compliance

CRD number
#111113
SEC Number
801-18054
Disciplinary History
No
Fee Model & Minimums
Model: AUM / Flat Fee

Data as of March 27, 2026 · Source: SEC IAPD & FINRA BrokerCheck

Contact Information

Editorial disclosure

This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Mason Investment Advisory Services Inc has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on the SEC or FINRA websites before making any decision.

BrokerCheck data is used subject to the FINRA BrokerCheck Terms of Use. Found something inaccurate? Report inaccurate data and we will correct any error we introduced. Errors in the underlying BrokerCheck record itself are referred to FINRA, which maintains that record.

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