EisnerAmper
EisnerAmper is a professional services firm with transaction advisory capabilities across financial due diligence, tax due diligence, IT due diligence, valuation, and deal support.
- Highest 2026 tier: Tier II
- Financial due diligence advisory firm
- Financial Due Diligence (FDD) Advisory
Overview
EisnerAmper is a professional services firm with transaction advisory capabilities across financial due diligence, tax due diligence, IT due diligence, valuation, and deal support. The firm serves private equity investors, strategic acquirers, lenders, founder-led businesses, and middle-market companies evaluating acquisitions, divestitures, recapitalizations, and financing events.
Its financial due diligence work is especially relevant in middle-market transactions where clients need detailed analysis of historical financial performance, normalized earnings, working capital, revenue trends, customer concentration, tax exposure, and operational risks. EisnerAmper’s combination of accounting, tax, advisory, and industry expertise gives it a practical role in transaction execution.
EisnerAmper is included in one 2026 Advisory Ranking category. The highest recorded classification is Tier II.
Firm facts
| Founded | 1963 |
| Firm type | Financial due diligence advisory firm |
| Headquarters | New York, United States |
| Primary focus | Transaction financial analysis and deal-accounting diligence |
| Highest 2026 Advisory Ranking tier | Tier II |
Principal activities
Quality of earnings
Earnings normalization, working-capital analysis and cash-flow review.
Transaction diligence
Buy-side and sell-side financial diligence and deal-risk assessment.
Deal accounting
Purchase-agreement support, carve-out analysis and post-deal financial matters.
EisnerAmper works with clients on assignments that may combine strategy, specialist analysis, implementation support and organizational adoption. The precise scope depends on the mandate, sector, geography and client requirements.
Sector and mandate coverage
Sector coverage
- Private equity
- Industrials
- Technology
- Healthcare
- Consumer markets
- Business services
Mandate types
- Buy-side diligence
- Sell-side diligence
- Quality of earnings
- Working capital
- Carve-out diligence
- Deal accounting
Market position
EisnerAmper is positioned as a financial due diligence advisory firm. Its relevance reflects the combination of specialist capability, institutional experience and practical involvement in consequential strategic or corporate decisions.
Distinctive focus: Its financial due diligence work is especially relevant in middle-market transactions where clients need detailed analysis of historical financial performance, normalized earnings, working capital, revenue trends, customer concentration, tax exposure, and operational risks.
Competitive context
EisnerAmper competes with specialist strategy advisers, executive-services firms, transaction advisers, analytics providers and larger multidisciplinary professional-services firms. The relevant peer set varies by mandate, industry, client segment, geographic scope and delivery model.
Comparable firms are selected according to overlap in business model, client segment, service coverage, geographic activity and mandate profile. Inclusion does not imply equivalence in scale, ranking or market position.
Leadership
| Person | Current position | Institutional background |
|---|
Leadership information reflects the public sources reviewed for this profile. View the firm’s website ↗
Corporate and regulatory information
EisnerAmper provides advisory, executive, analytical, transaction, managed or technology services. The contracting entity, professional obligations and regulatory status depend on the service, client jurisdiction and engagement scope.
View registered-entity details
| Service status | Advisory, executive, analytical, transaction or technology services |
| Headquarters | New York, United States |
Principal offices
- New York, United States
Rankings and recognition
Ranking inclusion is editorially determined. The existence or maintenance of a Wiki profile does not influence ranking eligibility, tier or position.
Related Economy analysis
Selected Economy Markets articles providing context for the firm’s advisory environment:
- The Silent Reshuffle of the Advisory Market
- How AI Is Reshaping the Consulting Industry in 2026
- Middle-Market Private Equity: Returns, Scale and Manager Selection
Related institutions and subjects
Sources and data transparency
The profile is based on the following publicly available institutional, regulatory and editorial sources:
- EisnerAmper — official firm overview and service information.
- Advisory Ranking — Top 30 Financial Due Diligence (FDD) Advisory 2026 — inclusion and tier classification.
