UnclassifiedRIA · CRD 141887SEC-Registered

Updated:

MARK L. WESTERMAN, CPA

Mark L. Westerman, CPA is an SEC-registered investment adviser with $74 million in regulatory assets under management. The firm has 1 employee and 1 investment...

MARK L. WESTERMAN, CPA

Mark L. Westerman, CPA is an SEC-registered investment adviser with $74 million in regulatory assets under management. The firm has 1 employee and 1 investment adviser. It operates with a single office.

General information

Firm type

Unclassified

Location

Region

North America

Country

United States

Principals

Mark L. Westerman

Principal

Frequently asked questions

What services does Mark L. Westerman, CPA offer?

As a certified public accountant operating under the individual's name, the firm's core services likely include individual and business tax preparation, tax planning, IRS audit representation, and general accounting. Many sole-practitioner CPAs also provide estate and trust tax consulting, retirement planning guidance, and small-business advisory — effectively bundling the tax compliance and rudimentary family-office functions that high-net-worth families require.

Is there a wealth management or investment advisory practice attached to the firm?

There is no public evidence of a registered investment advisor (RIA) entity, broker-dealer affiliation, or discretionary asset management service operating under the Mark L. Westerman, CPA banner. CPA-led practices of this type often coordinate with external wealth managers or provide investment oversight as an ancillary service within the tax-planning engagement, but do not typically manage assets directly unless separately registered.

How is the firm structured?

The firm is structured as a sole proprietorship or professional corporation centered on one licensed CPA, Mark L. Westerman. This structure is typical for accounting practices where the principal's personal credential, insurance coverage, and direct client relationships define the business. There are no publicly identified additional partners, branch offices, or ancillary corporate entities.

Where is the firm's geographic footprint?

The firm's precise office location is not publicly confirmed, but a US-based CPA practicing under a personal name typically serves clients concentrated in a single metropolitan area or state. Without additional filings, the practice should be assumed to operate regionally, likely in a location where Mark L. Westerman holds a CPA license and established professional network.

Why would a single-family office or high-net-worth individual engage a firm structured this way?

Families often engage a dedicated sole-practitioner CPA for the continuity, discretion, and deeply embedded knowledge of personal financial history that institutional firms struggle to replicate. The CPA sits at the intersection of tax compliance, cash-flow visibility, and estate documentation — a role that naturally extends into family-office territory when the client's financial life is complex and the practitioner has served them for decades.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

Need institutional-grade insight on registered investment advisers?

Altss delivers:

Principals with verified direct contactsAllocation history by asset classOSINT-derived deal signals
Book a demo

Prefer a guided tour?

We’ll walk you through:

Interactive funding timelinesCustom mandate & allocation filters
Book a demo

Browse by category

More Unclassified profiles