Berdon
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
Where Berdon is headquartered
LocationHeadquarters
- 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 offeringCore 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 profileSegments16 records
Ideal customer profiles1 record
Berdon technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Berdon partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core, major and supporting.
- TellencoreCitrin 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)majorAcquired SWKJD, a Coral Gables, Miami-based accounting and advisory firm, to expand Florida presence.
- Browne Consulting Group LLCmajorAcquired 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 platform partnership providing Microsoft solutions integration for clients.
- NetSuitecoreTechnology platform partnership providing NetSuite ERP solutions integration.
- SalesforcecoreTechnology platform partnership providing Salesforce CRM integration services.
- WorkivacoreWorkiva Solutions partnership providing cloud-based reporting and compliance solutions.
- Priority ERPsupportingTechnology platform partnership providing Priority ERP integration.
- TipaltisupportingTechnology platform partnership providing Tipalti AP automation solutions.
- VenasupportingTechnology platform partnership providing Vena FP&A solutions.
- Moore North America (MNA)coreIndependent member of Moore North America, providing global network reach and collaboration opportunities with member firms across North America.
- Moore Global Network Limited (MGNL)coreIndependent 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 assessmentDirect 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 social profiles
Digital presenceBerdon financial estimates
Financial estimateRevenue estimate
Valuation estimate
Berdon leadership team
Management profileNumber of profiles
Profiles1 record
Berdon funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Berdon M&A and investment
M&A and investmentM&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?
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.
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.