Berdon

Accounting and Advisory Servicesberdonllp.com

Berdon LLP is a top 35 U.S. accounting and advisory firm headquartered in New York, founded in 1917, serving clients across multiple generations with 251 to 500 employees.

Company typePrivate
Founded1917
HeadquartersNew York, United States
Headcount251–500
GTM typeB2B
OfferingServices

What Berdon does

Berdon LLP is a privately held, New York-headquartered accounting and advisory firm founded in 1917 and ranked among the top 35 U.S. accounting firms. The firm employs between 251 and 500 people and operates as a for-profit partnership, with its firmographic positioning emphasizing brainpower, innovation, and adherence to high professional standards across "generations of clients." This positioning reflects a relationship-led, full-service mid-tier CPA practice competing in a U.S. accounting market dominated by the Big Four and larger national firms, where longevity, brand, and partner-level client engagement are the principal differentiators.

The firm serves clients through traditional accounting, tax, and advisory services typical of multi-generational New York accounting practices. Its over-one-century operating history and top-35 industry standing suggest a diversified client base spanning high-net-worth individuals, privately held businesses, and likely mid-market corporate engagements across the New York metropolitan area and beyond. The leadership roster in the available data identifies Marcus Hahn as Chief Financial Officer, providing a single named executive reference point.

Detailed operational data — including service-line breakdowns, technology stack, partnerships, M&A activity, and AI investments — available in the input set pertains to Citrin Cooperman (a separate Moore North America / Moore Global Network member firm) and has not been attributed to Berdon at the source level. Consequently, a granular view of Berdon's specific product mix, pricing model, technology adoption, partnership network, and recent strategic activity is not supported by the current source set and is noted as a data gap.

Berdon firmographics

Firmographics

Name: Berdon
Website: https://berdonllp.com
Company type: Private
Founded year: 1917
Headcount range: 251–500 employees
Short description: Berdon LLP is a top 35 U.S. accounting and advisory firm headquartered in New York, founded in 1917, serving clients across multiple generations with 251 to 500 employees.
Ownership category
akta.pro rank

Berdon industry classification

Industry

Product category: Accounting and Advisory Services
NAICS: Offices of Certified Public Accountants (541211), Other Accounting Services (541219)
SIC: Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742)
akta.pro primary industry: Buy-Side M&A Advisory (FSAEAGAB)
akta.pro secondary industries: Industry-Specialist / Sector-Focused M&A Advisory (FSAEAGAJ), Business Owner & Executive Financial Planning (FSAEAAAO)

Keywords

Accounting services
Tax advisory
Audit services
Business advisory
Financial consulting

Where Berdon is headquartered

Location

Headquarters

HQ city: New York
HQ country: United States
HQ region: North America

Markets served

Berdon business model

Business model

GTM type: B2B
Offering type: Services
Cost components: Personnel, Operations, Technology or R&D, Marketing or Sales

Distribution channels1 record

Marketing channels6 records

Berdon product offering

Product offering

Core offering

Berdon is a top 35 U.S. accounting and advisory firm providing accounting, tax, audit, and advisory services to mid-market and enterprise business clients. Founded in 1917 and headquartered in New York, the firm delivers full-service professional capabilities across traditional accounting practice areas and modern advisory engagements.

Differentiator

Problem solved

Functional benefit

Companies that use Berdon

Customer profile

Segments16 records

Ideal customer profiles1 record

Berdon technology and API

Technology

Technology focussed No

API detail

Has API: No
API docs
API detail

Core technology

AI maturity

App detail

Berdon partnerships and signals

Strategic signal

Partnerships

Twelve partnerships are on record, tiered core, major and supporting.

TellencoreTechnology or IntegrationCitrin Cooperman invested in Tellen, an emerging AI company developing agentic audit technology. The investment builds on an existing collaboration and reflects the firm's broader strategy to embed AI into core audit and quality management processes.
SWKJD (Sharff, Wittmer, Kurtz, Jackson & Diaz PC)majorStrategic or Co-development PartnerAcquired SWKJD, a Coral Gables, Miami-based accounting and advisory firm, to expand Florida presence.
Browne Consulting Group LLCmajorStrategic or Co-development PartnerAcquired substantially all assets of Browne Consulting Group LLC, a Boston-based advisory firm providing accounting and advisory services to the Life Sciences and Biotech sectors.
MicrosoftcoreTechnology or IntegrationTechnology platform partnership providing Microsoft solutions integration for clients.
NetSuitecoreTechnology or IntegrationTechnology platform partnership providing NetSuite ERP solutions integration.
SalesforcecoreTechnology or IntegrationTechnology platform partnership providing Salesforce CRM integration services.
WorkivacoreTechnology or IntegrationWorkiva Solutions partnership providing cloud-based reporting and compliance solutions.
Priority ERPsupportingTechnology or IntegrationTechnology platform partnership providing Priority ERP integration.
TipaltisupportingTechnology or IntegrationTechnology platform partnership providing Tipalti AP automation solutions.
VenasupportingTechnology or IntegrationTechnology platform partnership providing Vena FP&A solutions.
Moore North America (MNA)coreStrategic or Co-development PartnerIndependent member of Moore North America, providing global network reach and collaboration opportunities with member firms across North America.
Moore Global Network Limited (MGNL)coreStrategic or Co-development PartnerIndependent member of Moore Global Network Limited, providing worldwide network connections with independent firms globally.

Scale indicators5 records

Expansion highlights3 records

Berdon competitors and assessment

Company assessment

Direct peers

WithumSmith+Brown: Top-30 U.S. accounting and advisory firm with strong mid-market and tech/life-sciences practices — directly comparable in scale, service breadth, and go-to-market targeting middle-market clients.
PKF O'Connor Davies: Northeast-headquartered mid-tier accounting and advisory firm of comparable size with strong nonprofit, government, and private client practices — competes with Berdon for similar engagements and professionals in the NYC metro.
EisnerAmper: Top-20 U.S. accounting firm with major NYC presence and significant private equity, financial services, and real estate practices — directly competes with Berdon for talent, clients, and engagements in the same industries.
Anchin, Block & Company: NYC-based mid-tier accounting and advisory firm of comparable size serving closely overlapping client segments including real estate, construction, private equity, and family offices — a near-direct competitor for talent and engagements in the same metro.
Marcum LLP: Top-25 U.S. accounting and advisory firm with strong NYC presence and a service mix spanning audit, tax, advisory, and technology consulting — directly comparable to Berdon in positioning, scale, and target client profile.
Citrin Cooperman: Mid-tier national accounting and advisory firm of similar size with strong vertical specialization and a similar mix of audit, tax, advisory, and outsourced finance services — directly comparable across service lines and target industries.

Broad incumbents

BDO USA: Largest mid-tier "second-tier" global accounting network with full-service audit, tax, and advisory capabilities and broad industry coverage — overlaps with Berdon on mid-market clients but serves a much wider portfolio of larger engagements.
CLA (CliftonLarsonAllen): Top-10 U.S. accounting firm focused on private and mid-market clients with broad advisory capabilities — overlaps with Berdon's middle-market positioning but with significantly larger national footprint.
Grant Thornton: Top global mid-tier accounting and advisory firm with significant U.S. presence and full-service audit, tax, and advisory — competes with Berdon for larger middle-market and privately held company engagements.
RSM US: Leading global mid-tier accounting firm focused on middle-market clients with broad industry specializations — directly overlaps with Berdon's middle-market positioning across most verticals served.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

Berdon financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Berdon leadership team

Management profile

Number of profiles

Profiles1 record

Berdon funding detail

Funding detail

Funding overview

Funding rounds

Investors

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

Berdon M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about Berdon

What does Berdon do?

When was Berdon founded?

Berdon was founded in 1917. It employs 251 to 500 people.

Where is Berdon based?

Berdon is headquartered in New York, United States, in the North America region.

Who are Berdon's main competitors?

Direct peers on record are WithumSmith+Brown, PKF O'Connor Davies, EisnerAmper, Anchin, Block & Company, Marcum LLP and Citrin Cooperman. Broad incumbents are BDO USA, CLA (CliftonLarsonAllen), Grant Thornton and RSM US.

Does Berdon have an API?

No public API is recorded for Berdon.

What industry is Berdon in?

Berdon's product category is Accounting and Advisory Services. Its primary akta.pro industry code is FSAEAGAB, Buy-Side M&A Advisory, with a secondary code of FSAEAGAJ, Industry-Specialist / Sector-Focused M&A Advisory. Its NAICS code is 541211 and its SIC code is 8700.