What Mayer Hoffman McCann does

CBIZ CPAs P.C. (renamed from Mayer Hoffman McCann P.C. effective August 21, 2024) is an independent, 100% CPA-owned certified public accounting firm headquartered in Kansas City, Missouri, providing audit and attest services to growth-oriented public and private companies, not-for-profit organizations, and government entities across the United States. The firm operates 62 offices in 25+ states and is ranked a top 7 national accounting firm by Accounting Today (March 2026), with more than 70 years of operating history.

The service catalog is organized around seven core offerings: financial statement audits, SEC/PCAOB financial audits, compilation and review services, employee benefit plan audits, single audits, SOC reporting (including SOC 2+ hybrid frameworks with HIPAA and ISO 27001), and agreed-upon procedures. The firm's National Attest Office, comprising 90+ quality control professionals, supports more than 1,900 employee benefit plan audits annually and provides centralized subject-matter expertise across industry verticals spanning alternative investments, capital markets, construction, financial services, food and beverage, government, life sciences, real estate, technology, and private equity.

The business model is professional services billing per engagement, distributed through a direct, relationship-driven sales motion with no publicly disclosed pricing. CBIZ CPAs P.C. operates under an alternative practice structure with publicly traded CBIZ, Inc. (NYSE: CBZ), which separates attest services from non-attest consulting to preserve AICPA, PCAOB, and state board independence. The firm is 100% owned by its CPAs, governed by its own board of directors and executive committee, and participates in the AICPA Peer Review Program; it is a professional services firm rather than a technology company.

Name

Mayer Hoffman McCann

Legal name

CBIZ CPAs P.C.

Website

https://cbizcpas.com

Company type

Private

Founded year

1954

Operating status

Operating

Headcount range

251–500 employees

Short description

CBIZ CPAs P.C. (formerly Mayer Hoffman McCann P.C.) is an independent, CPA-owned U.S. audit and attest firm serving growth-oriented public and private companies, not-for-profits, and government entities across 62 offices and 25+ states, operating under an alternative practice structure with CBIZ, Inc. (NYSE: CBZ).

Ownership category

akta.pro rank

Headquarters

HQ city

Kansas City

HQ country

United States

HQ region

North America

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Audit and Attest Services: Professional services revenue generated through providing audit and attest services including financial statement audits, SEC/PCAOB audits, employee benefit plan audits, SOC reporting, single audits, and agreed-upon procedures. Services are tailored to growth-oriented companies and not-for-profit organizations across multiple industries.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

CBIZ CPAs P.C. (formerly Mayer Hoffman McCann P.C.) is an independent CPA firm providing audit and attest services to growth-oriented public and private companies and not-for-profit organizations across the United States. Its service portfolio spans financial statement audits, SEC/PCAOB audits, compilation and review services, employee benefit plan audits, single audits, SOC reporting, and agreed-upon procedures delivered through 62 office locations with a National Attest Office of more than 90 quality control professionals.

Product overview

CBIZ CPAs P.C. (formerly Mayer Hoffman McCann P.C., renamed August 2024) is an independent CPA firm providing a comprehensive suite of audit and attest services organized around seven core offerings: Financial Statement Audits, SEC/PCAOB Financial Audits, Compilation & Review Services, Employee Benefit Plan Audits, Single Audits, SOC Reporting Services, and Agreed-Upon Procedures. The firm leverages over 70 years of experience serving growth-oriented companies, not-for-profit organizations, and government entities across diverse industries including technology, financial services, life sciences, real estate, construction, and private equity. The National Attest Office represents over 90 quality control professionals, and the firm participates in the AICPA Peer Review Program.

Differentiator

Problem solved

Functional benefit

Products and services

• Financial Statement Audits Tailored financial statement audits delivering strategic insights for proactive, confident decision-making for public companies, broker-dealers, private companies, not-for-profit organizations, investment funds, governmental entities, employee benefit plans, HUD compliance, and Certiorari compliance.
• SEC/PCAOB Financial Audits Precision audits for SEC and PCAOB compliance including financial statement audits under PCAOB standards, tax compliance, due diligence, agreed-upon procedures, Sarbanes-Oxley Section 404 controls audits, and IPO audits.
• Compilation & Review Services Compilation procedures to assemble and format financial records into statements for management and stakeholders without issuing an opinion, plus tailored review services providing limited assurance through diagnostic tools and inquiries.
• Employee Benefit Plan Audits Risk-focused audits of employee benefit plans including defined benefit plans, defined contribution plans, 401(k) plans, profit-sharing plans, ESOPs, 403(b) and 401(a) plans, plans requiring 11-K SEC filings, health and welfare benefit plans, and multiple-employer/pooled-employer plans; the firm conducts more than 1,900 such audits annually.
• Single Audits Single audit services combining financial statement audits performed under Government Auditing Standards with compliance audits under Uniform Guidance for not-for-profits, government agencies, or tribal entities receiving federal funds exceeding $1 million annually.
• SOC Reporting Services Independent SOC audit services including SOC 1, SOC 2, SOC 2+ (combining criteria with HIPAA, ISO 27001, and other frameworks), and SOC 3 reports providing assurance on internal controls over financial reporting, data security, availability, confidentiality, processing integrity, and privacy.
• Agreed-Upon Procedures Customized attestation services tailored to address specific information needs, providing focused testing, customized processes, timely reporting, enhanced compliance, and due diligence support without issuing an overall opinion.

Quantifiable outcome

• More than 1,900 employee benefit plan audits conducted annually
• +1 more outcomes

Named customers2 records

Segments15 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered core.

• CBIZ, Inc. (NYSE: CBZ)coreStrategic or Co-development PartnerCBIZ CPAs is strategically associated with CBIZ, Inc. through an alternative practice structure. This structure separates CBIZ's non-attest practice from the attest services provided by CBIZ CPAs, maintaining objectivity and integrity and ensuring freedom from conflicts of interest. CBIZ CPAs is an independent CPA firm 100% owned by CPAs and primarily provides attest services.
• AICPA Peer Review ProgramcoreOthersCBIZ CPAs participates in the AICPA Peer Review Program. A copy of their most recent report is available on their website. This peer review process ensures quality control standards are maintained.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Marcum LLP: Marcum LLP is a top-15 U.S. accounting firm that was acquired by CBIZ, Inc. in 2024, making it both a peer and a sister firm within the broader CBIZ family. It competes directly in attest services for private equity, construction, and high-growth sectors.
• RSM US: RSM US is the U.S. member of RSM International and a top-5 U.S. accounting firm focused on middle-market companies. It directly competes with CBIZ CPAs in SEC audits, SOC reporting, and industry-specialized attest services.
• BDO USA: BDO USA is a top-10 U.S. accounting firm providing audit, tax, and advisory services to mid-market public and private companies. It is the most direct peer to CBIZ CPAs given similar positioning in SEC/PCAOB audits, employee benefit plan audits, and industry-specialized practices.
• Grant Thornton: Grant Thornton is a top-7 U.S. accounting firm offering audit and attest services to growth-oriented public and private companies. Its mid-market focus, industry specialization, and national footprint make it a close comparable to CBIZ CPAs.
• Citrin Cooperman: Citrin Cooperman is a top-50 U.S. accounting firm providing audit, tax, and advisory services to growth-oriented middle-market companies. It serves as a comparable in the mid-tier attest market for private and pre-IPO clients.
• Withum: Withum is a top-25 U.S. accounting firm with strong technology, life sciences, and SOC reporting practices. Its mid-market growth-company focus and industry specialization align closely with CBIZ CPAs' positioning.
• EisnerAmper: EisnerAmper is a top-20 U.S. accounting firm with strong practices in alternative investments, financial services, and private equity. It is highly comparable to CBIZ CPAs in industry mix and client profile.
• Crowe LLP: Crowe LLP is a top-10 U.S. public accounting and consulting firm serving mid-market clients in financial services, healthcare, and technology. Its audit practice and EBP audit volume overlap directly with CBIZ CPAs' service portfolio.

Broad incumbents

• KPMG (US): KPMG is a Big 4 accounting firm with significant SEC audit, SOC reporting, and industry-specialized practices. As a broad incumbent, it competes with CBIZ CPAs for upper-middle-market and large-cap audit engagements.
• Deloitte (US): Deloitte is one of the Big 4 global accounting firms and a broad incumbent with dominant SEC audit market share. While much larger than CBIZ CPAs, it competes for the same SEC/PCAOB audit clients and is the dominant force in the audit market the firm addresses.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mhmcpa
• Xx.com/mhm_pc
• Facebookfacebook.com/mhmpc

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mayer Hoffman McCann