Grossberg Company LLP

What Grossberg Company LLP does

Grossberg Company LLP is a Certified Public Accountants firm founded in 1924 and headquartered in Bethesda, Maryland, providing accounting, tax, and business consulting services to clients in the Washington DC metropolitan area. The firm serves a diversified client base spanning real estate owners, developers, contractors, and property managers; high-net-worth individuals; closely held businesses; non-profit organizations; and government contractors. Its service portfolio combines core compliance work (tax preparation, audits, reviews, compilations, Form 990 filings) with higher-margin advisory offerings (estate planning, business valuation, internal controls, strategic planning, and cost segregation). Real estate taxation and partnership taxation represent areas of particularly deep specialization, reinforced by leadership roles at AICPA and the NYU Federal Real Estate and Partnerships Tax Conference.

The firm operates under a traditional partner-led professional services model, with engagements delivered by partners and tenured professional staff. Its technology stack is conventional: standard accounting and tax preparation software, electronic document management, and a secure client portal. The most notable client-facing digital tool is SafeSend Returns, which provides electronic tax return delivery, guided on-screen review, e-signature, and K-1 distribution. An affiliated entity, Grossberg/MP&S Valuations LLC, delivers business valuation, appraisal, cost segregation, and litigation support services through a team of Valuation Consultants, Degreed Engineers, and Designated Appraisers.

Revenue is generated through professional services fees billed hourly or on a fixed-fee basis; no pricing or revenue figures are publicly disclosed. Go-to-market is sales-led and referral-driven, supplemented by community involvement, conference sponsorship, and thought leadership. The firm operates from a single headquarters office with 101-250 employees and is structured as a privately held Limited Liability Partnership owned by its partners, with no external private equity or venture capital involvement identified.

Name

Grossberg Company LLP

Legal name

Grossberg Company LLP

Website

https://grossberg.com

Company type

Private

Founded year

1924

Operating status

Operating

Headcount range

101–250 employees

Short description

Grossberg Company LLP is a Bethesda, Maryland CPA firm founded in 1924 providing accounting, tax, and business consulting services to real estate firms, high-net-worth individuals, closely held businesses, non-profits, and government contractors in the Washington DC metro area.

Ownership category

akta.pro rank

Headquarters

HQ city

Bethesda

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Tax Services: Tax preparation and planning services for individuals, businesses, partnerships, LLCs, corporations, trusts, estates, retirement plans, and non-profit entities. Includes federal, state, and local tax return preparation.
2. Assurance Services: Audit, review, and compilation services for financial statements. Includes fraud investigations, forensic accounting, and internal control audits.
3. Real Estate Services: Specialized accounting, tax, and consulting services for real estate owners, property managers, contractors, and developers.
4. Estate and Trust Services: Trust administration, estate planning support, and estate administration services.
5. Business Valuation: Business valuation services for mergers, acquisitions, disputes, estate planning, and financing.
6. Internal Controls: Internal control evaluation and implementation services to protect businesses from employee theft and improve operational efficiency.
7. Strategic Business Planning: Business planning services for startups, expansions, acquisitions, and turnarounds.
8. K-1 Processing: Processing and distribution of K-1 tax forms for partnerships and S-corporations.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Grossberg Company LLP is a Certified Public Accountants firm providing tax compliance and advisory, assurance (audit/review/compilation), estate planning, business valuation, real estate advisory, human resources consulting, information technology consulting, and strategic business planning services to closely held businesses, high-net-worth individuals, real estate professionals, not-for-profits, and government contractors. The firm delivers these professional services through its partners and staff based in Bethesda, Maryland, supported by the SafeSend Returns electronic delivery platform and a Secure Client Portal.

Product overview

Grossberg Company LLP is a Certified Public Accountants firm offering a comprehensive portfolio of professional services organized around its core practice areas. The firm's services are structured as a unified professional services offering rather than a modular software platform. The primary service lines include Tax Compliance & Advisory, Assurance Services, Estate Planning, Human Resources, Information Technology, Real Estate, and Valuation & Cost Segregation. The firm delivers services through its affiliated entity Grossberg/MP&S Valuations LLC for valuation matters. Client-facing digital tools include SafeSend Returns for secure electronic tax return delivery and e-signature capabilities. Services for individuals include tax preparation, tax planning, personal financial planning, and estates and trusts administration. Business services span small business accounting, audits/reviews/compilations, cash flow management, bank financing, business valuation, strategic planning, new business formation, non-profit organizations, and internal controls.

Differentiator

Problem solved

Functional benefit

Brands

• Grossberg/MP&S Valuations LLC: Affiliate company providing valuation and cost segregation services through a group of professionals with skills in valuation consulting, engineering, and designated appraising.

Products and services

• Tax Compliance & Advisory Services

Quantifiable outcome

• Clients benefit from lowest amount of taxes allowable by law through proactive tax planning strategies
• +1 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Six partnerships are on record, tiered core and minor.

• NYU School of Professional StudiescoreStrategic or Co-development Partner · 1 June 2019Paul Wilner serves as co-chair of the NYU Federal Real Estate and Partnerships Tax Conference. Firm sponsors the conference as a demonstration of commitment to the real estate industry.
• Grossberg/MP&S Valuations LLCcoreStrategic or Co-development PartnerAffiliated company specializing in valuation and cost segregation services. Provides state-of-the-art valuation services through professionals including Valuation Consultants, Degreed Engineers, and Designated Appraisers with advanced degrees in business, accounting and finance. Cost segregation studies help real estate entrepreneurs realize tax advantages.
• Ernst & YoungminorGTM or Marketing PartnerCo-sponsored the NYU 2019 Federal Real Estate and Partnerships Tax Conference along with MR Valuation Consulting and Grossberg Company LLP.
• MR Valuation Consulting, LLCminorGTM or Marketing PartnerCo-sponsored the NYU 2019 Federal Real Estate and Partnerships Tax Conference along with Ernst & Young and Grossberg Company LLP.
• Revere BankcoreStrategic or Co-development PartnerCo-founded the Montgomery County Business Hall of Fame with Grossberg Company LLP. The event honors outstanding business leaders and has raised $1.2 million in 8 years for the USG Scholarship Fund.
• American Institute of Certified Public Accountants (AICPA)coreStrategic or Co-development PartnerGrossberg Company LLP sponsors the AICPA National Real Estate Tax Conference. Paul Wilner has served on AICPA Tax Executive Committee and as Chair of various AICPA committees including Partnership Technical Resource Panel and Real Estate Tax Conferences.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Thompson Greenspon: Fairfax, VA-based regional CPA firm of similar size serving DC-metro businesses, nonprofits, and individuals with tax, audit, and consulting — direct geographic and service-line peer.
• Snyder Cohn: North Bethesda CPA firm of similar size and headcount serving closely held businesses, real estate, nonprofit, and HNW clients in the DC metro — directly comparable regional competitor with overlapping service portfolio.
• Councilor, Buchanan & Mitchell: Bethesda-based CPA firm of comparable size serving the DC metro with tax, audit, and advisory services to closely held businesses, real estate, and nonprofit clients — directly comparable in geography, scale, and service mix.
• Tate & Tryon: Washington DC-based CPA firm specializing in nonprofit, association, and government contractor audit and tax — directly comparable in DC geography and overlapping nonprofit/regulated-entity focus.
• Gelman, Rosenberg & Freedman: Bethesda-based CPA firm with strong government contractor and nonprofit audit practice, comparable in size and DC-metro geography to Grossberg, with overlapping client verticals and assurance focus.

Regional players

• Marks Paneth: New York-based regional CPA firm with strong HNW, closely held business, and real estate practices — comparable client mix and service lines, though concentrated in the NY metro rather than DC.
• Aprio: Atlanta-headquartered regional CPA and advisory firm with a dedicated real estate practice serving owners, developers, and investors — comparable real estate niche and closely held business focus, but operating in a different geography.
• Withum: East Coast regional CPA firm with a nationally recognized real estate practice and significant HNW/closely held business focus — comparable specialty depth, though broader in geography and scale than Grossberg.

Broad incumbents

• BDO USA: Top-5 US accounting firm with substantial DC-metro presence and practices in real estate, HNW, and government contracting — broad incumbent competing for the same mid-market clients as Grossberg.
• CohnReznick: Top-20 national CPA firm with a dedicated real estate practice, HNW services, and significant government contractor vertical — broader incumbent offering overlapping capabilities across Grossberg's primary verticals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/grossberg-company-llp

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Grossberg Company LLP