Insights

Acquisition Cue Merging with CBIZ positions Marcum within a broader multi-disciplinary platform, suggesting opportunities to cross-sell integrated services such as accounting, tax, advisory, benefits, and technology solutions to CBIZ's existing middle-market client base.

Scale Advantage Leverage CBIZ’s nationwide footprint and 10,000+ professionals to target mid-market firms seeking scalable outsourced accounting, tax, and advisory capabilities with national reach and consistent service delivery.

Tech Stack Fit Marcums use of modern tools like AWS, BigQuery, WordPress, and Asana indicates readiness for data analytics, cloud-based collaboration, and digital transformation projects that can be upsold to clients pursuing efficiency and insights.

Growth Synergy The combination with CBIZ creates potential for bundled offerings, including attest services via CBIZ CPAs P.C., cybersecurity and tech-enabled advisory, and expanded benefits and insurance services for corporate clients.

Market Position With CBIZ’s Healthiest Employers initiatives and large mid-market focus, there are opportunities to position Marcum as a trusted advisor for workforce wellness programs, risk assessment, and scalable corporate finance solutions in competitive markets.

Similar companies to Marcum LLP

Marcum LLP Tech Stack

Marcum LLP uses 8 technology products and services including Adobe Creative Cloud, Amazon Web Services, WordPress, and more. Explore Marcum LLP's tech stack below.

Media & News

Marcum LLP's Email Address Formats

Marcum LLP uses at least 12 email formats:
Marcum LLP Email FormatsExamplePercentage
First.Last@marcumllp.comJohn.Doe@marcumllp.com
95%
Last.First@marcumllp.comDoe.John@marcumllp.com
4%
First.Middle@marcumllp.comJohn.Michael@marcumllp.com
1%
First.Last@marcumsearch.comJohn.Doe@marcumsearch.com
73%
Last@marcumsearch.comDoe@marcumsearch.com
23%
First.MiddleLast@marcumsearch.comJohn.MichaelDoe@marcumsearch.com
3%
First.Middle@marcumsearch.comJohn.Michael@marcumsearch.com
1%
First.Last@marcumtechnology.comJohn.Doe@marcumtechnology.com
100%
FLast@cbiz.comJDoe@cbiz.com
74%
First.Last@cbiz.comJohn.Doe@cbiz.com
15%
FirstLast@cbiz.comJohnDoe@cbiz.com
7%
FirLast@cbiz.comJohDoe@cbiz.com
4%

Frequently Asked Questions

What is Marcum LLP's phone number?

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You can contact Marcum LLP's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Marcum LLP's official website and social media links?

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Marcum LLP's official website is cbiz.com and has social profiles on LinkedIn.

How much revenue does Marcum LLP generate?

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As of August 2026, Marcum LLP's annual revenue is estimated to be $1B - $10B.

What is Marcum LLP's SIC code and NAICS code?

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Marcum LLP's SIC code is 7389 - Business Services, Not Elsewhere Classified and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Marcum LLP have currently?

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As of August 2026, Marcum LLP has approximately 1.1K employees across 4 continents, including North America, Europe and Asia. Key team members include Cio / Consultant: K. M., Chief Human Capital Officer: C. D. and President And Head Historian: C. J. Explore Marcum LLP's employee directory with LeadIQ.

What industry does Marcum LLP belong to?

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Marcum LLP operates in the Accounting industry.

What technology does Marcum LLP use?

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Marcum LLP's tech stack includes Adobe Creative Cloud, Amazon Web Services, WordPress, Jenkins, Google BigQuery, Articulate 360, Asana and ZoomInfo.

What is Marcum LLP's email format?

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Marcum LLP's email format typically follows the pattern of First.Last@marcumllp.com. Find more Marcum LLP email formats with LeadIQ.

When was Marcum LLP founded?

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Marcum LLP was founded in 1951.
Marcum LLP logo

Marcum LLP

AccountingNew York, United States1001-5000 Employees

Marcum LLP is an accounting firm based in New York, located at 730 3rd Avenue, 11th Floor, New York, NY 10017, United States. On November 1, 2024, Marcum LLP was acquired by CBIZ, Inc., a national professional services firm serving middle market businesses and organizations. CBIZ provides services in accounting, tax, advisory, benefits, insurance, and technology, and employs more than 10,000 people across more than 160 locations in 21 major markets. The CBIZ organization operates CBIZ CPAs, a national independent CPA firm offering attest services for middle market and growing businesses across various industries; in certain jurisdictions, CBIZ CPAs P.C. operates under Mayer Hoffman McCann, P.C. Marcum LLP has a workforce of between 1,001 and 5,000 employees. More information about CBIZ is available at cbiz.com.

Section iconCompany Overview

Phone number
Website
cbiz.com
SIC Code
7389 - Business Services, Not Elsewhere Classified
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1951
Employees
1001-5000

Section iconFunding & Financials

  • $1B - $10B

    Marcum LLP's revenue is estimated to be in the range of $1B - $10B

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