What Kaplan Fox & Kilsheimer LLP does

Kaplan Fox & Kilsheimer LLP is a nationally recognized plaintiffs' litigation limited liability partnership founded in the 1970s (securities practice) and headquartered at 800 Third Avenue, New York, with four additional offices in Oakland, Los Angeles, Morristown (NJ), and the Chicago area. The firm represents institutional investors (public pension funds including CalPERS, Ohio STRS, Ohio PERS, Teacher Retirement System of Texas, CAAT, PGGM, and Fjärde AP-Fonden) and individual investors in securities class action litigation, antitrust and competition class actions, consumer protection litigation, data privacy and cyberlaw matters, and provides private client services to high-net-worth individuals for estate planning, wealth management, and real estate matters.

The firm's core product is complex plaintiff-side litigation representation, anchored in court-appointed lead counsel roles in major multidistrict and class action proceedings. Its underlying capability stack is legal talent rather than technology: 17 partners and additional of counsel, including alumni of the U.S. DOJ Antitrust Division, the Manhattan DA's Office, and Big Four accounting, supported by associates and staff attorneys. The firm operates a Portfolio Monitoring Program that delivers ongoing portfolio-loss surveillance to institutional clients, and a self-serve "Join a Case" intake form on kaplanfox.com that captures individual investor leads. Track record includes over $10 billion in aggregate client recoveries, the $2.425 billion Bank of America Securities Litigation settlement (largest Section 14(a) class action settlement), $1.0384 billion Air Cargo recovery, and $310 million Apple Device Performance settlement.

Kaplan Fox's revenue model combines contingency fees on securities and antitrust class actions (transaction-based, settled as a percentage of recovery) with hourly or fixed fees for Private Client Services, plus what functions as a recurring relationship-revenue stream through the Portfolio Monitoring Program. Go-to-market is hybrid: direct partner-led engagement with institutional investors for large matters, paired with PR-driven investor alerts on financial news wires and an online intake form for individual claimants. The firm is privately held by its equity partners, has no parent company, no outside institutional investors, and does not operate as a technology platform.

Name

Kaplan Fox & Kilsheimer LLP

Legal name

Kaplan Fox & Kilsheimer LLP

Website

https://kaplanfox.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

11–50 employees

Short description

Kaplan Fox & Kilsheimer LLP is a New York-based plaintiffs' litigation firm representing institutional and individual investors in securities class actions, antitrust, consumer protection, data privacy, and private client matters.

Ownership category

akta.pro rank

Product category

Plaintiffs' Litigation Legal Services

NAICS

Legal Services (5411)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Class Actions, Claims & Entitlements Recovery (FSACAKAK)

akta.pro secondary industries

Claims Advocacy & Loss Recovery Services (FSAEADAH), Litigation & Dispute Valuation (damages, shareholder disputes) (FSAEAHAI)

Keywords

• Securities class actions
• Antitrust litigation
• Consumer protection litigation
• Data privacy law
• Private client legal services

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure, Others

Revenue model

1. Securities Class Action Litigation (Contingency Fees): The firm represents institutional and individual investors in securities class action lawsuits. Historically, these cases are taken on a contingency fee basis where the firm recovers a percentage of settlements or judgments obtained for clients.
2. Private Client Legal Services: Estate planning, wealth management, and real estate-related legal services provided to private clients on an hourly or fixed-fee basis.
3. Antitrust and Consumer Protection Litigation: Class action and opt-out litigation in antitrust and consumer protection matters, typically pursued on behalf of direct purchaser classes or affected consumers, with fee arrangements based on settlements recovered.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Kaplan Fox & Kilsheimer LLP is a plaintiffs' litigation law firm that represents institutional and individual investors, consumers, and private clients in complex litigation matters. The firm's practice areas include securities class actions, antitrust/competition law, consumer protection, data privacy and cyberlaw, and private client services such as estate planning and wealth management. The firm typically handles securities and antitrust matters on a contingency fee basis, recovering a percentage of settlement proceeds obtained for clients.

Product overview

Kaplan Fox & Kilsheimer LLP is a law firm providing legal services, not a technology product company. The firm offers legal practice areas including Securities Litigation, Competition Law (Antitrust), Consumer Protection Litigation, Data Privacy & Cyberlaw, and Private Client Services. These are legal service offerings, not technology products or platforms.

Differentiator

Problem solved

Functional benefit

Products and services

• Securities Litigation Representation of institutional and individual investors in securities class actions, shareholder derivative actions, and opt-out litigation arising from corporate fraud, misrepresentation in securities offerings, and breach of fiduciary duty.
• Competition Law (Antitrust) Class action and opt-out litigation in antitrust matters, including price-fixing cartels, monopolization, and complex economic damages cases, on behalf of direct purchaser classes and affected consumers.
• Consumer Protection Litigation Class action litigation on behalf of consumers harmed by deceptive marketing, defective products, false advertising, and unfair business practices.
• Data Privacy & Cyberlaw Litigation and counsel on data privacy violations, cybersecurity incidents, and consumer data protection matters.
• Private Client Services Estate planning, wealth management, real estate-related legal services, elderly care planning, and art/antiques collection curation provided to high-net-worth individuals and families.

Quantifiable outcome

• Over $10 billion in total recoveries for clients
• +3 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered minor and core.

• Cotchett Pitre & McCarthy LLPminorStrategic or Co-development PartnerCo-lead class counsel with Cotchett Pitre & McCarthy LLP in the In re: Apple, Inc. Device Performance Litigation (No. 5:18-MD-2827-EJD) (N.D. Cal.), a consumer protection class action related to defective iPhone and iPad models and software patches that throttled device performance.
• Federal and State CourtscoreOthersCourts nationwide have consistently appointed Kaplan Fox as lead or co-lead counsel in antitrust class and private actions, and as lead counsel in securities class actions, reflecting judicial recognition of the firm's capabilities.
• Antitrust Division, U.S. Department of JusticeminorOthersRobert N. Kaplan honed his litigation skills as a trial attorney with the Antitrust Division of the U.S. Department of Justice, gaining experience in both civil and criminal actions.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Hagens Berman Sobol Shapiro LLP: Plaintiffs' firm with securities, antitrust, and consumer protection class action practices; competes for lead-counsel roles and large institutional plaintiff representation.
• Labaton Sucharow LLP: Specialist plaintiffs' securities and shareholder litigation firm recognized for institutional investor representation; competes for lead plaintiff counsel roles in overlapping MDLs.
• Bernstein Litowitz Berger & Grossmann LLP: Premier institutional-focused plaintiffs' securities and shareholder rights firm with a comparable public pension fund client base and similar lead-counsel track record.
• Grant & Eisenhofer P.C. Plaintiffs' firm focused on securities, shareholder, and complex commercial litigation; overlaps with Kaplan Fox's institutional investor practice and lead-counsel positioning.
• Pomerantz LLP: Long-standing plaintiffs' securities class action firm with a deep institutional client roster and a national footprint similar to Kaplan Fox's.
• Levi & Korsinsky LLP: Plaintiffs' securities litigation firm with active case investigation pipelines and class action filings, competing with Kaplan Fox for individual and institutional investor clients.
• Kessler Topaz Meltzer & Check, LLP: Plaintiffs' firm focused on securities class actions and shareholder litigation, frequently serves as lead or co-lead counsel in federal securities class actions — a direct competitor for the same institutional clients.
• Robbins Geller Rudman & Dowd LLP: Largest U.S. plaintiffs' securities class action firm, routinely serves as lead counsel in mega-MDLs and competes head-to-head with Kaplan Fox for institutional lead plaintiff appointments.
• Scott+Scott Attorneys at Law LLP: Plaintiffs' firm with securities and antitrust class action practices; competes with Kaplan Fox on complex multi-district litigation and consumer class actions.
• Cotchett Pitre & McCarthy LLP: Plaintiffs' antitrust and consumer protection firm; currently co-lead counsel with Kaplan Fox in the In re Apple Device Performance Litigation and a frequent co-counsel/competitor on West Coast class actions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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 Kaplan Fox & Kilsheimer LLP