WeissLaw LLP
WeissLaw LLP is a New York-headquartered plaintiff-side litigation firm specializing in securities class actions, shareholder derivative suits, consumer class actions, and M&A shareholder litigation, representing individual and institutional investors on a contingent-fee basis across four U.S. offices.
- Company typePrivate
- Founded2012
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B and B2C
- OfferingServices
What WeissLaw LLP does
WeissLaw LLP is a New York-headquartered plaintiff-side litigation limited liability partnership founded by Joseph H. Weiss, specializing in securities class actions, shareholder derivative litigation, consumer class actions, and M&A-related shareholder disputes. The firm operates four U.S. offices (New York, Beverly Hills, Decatur, and Clifton) and its attorneys are admitted in numerous federal district and appellate courts, including the First, Second, Third, Fifth, Ninth, and Federal Circuits. Practice groups are chaired by named partners: David C. Katz leads Corporate Governance Litigation, Mark D. Smilow leads Consumer Litigation, and Managing Partner Joshua M. Rubin oversees firm-wide institutional client portfolio monitoring systems and Electronic Discovery platforms.
The firm prosecutes cases on a contingent-fee basis, advancing all litigation costs and expenses and recovering compensation as a percentage of settlement or judgment in securities class actions, derivative suits, consumer class actions, and M&A litigation. Its proprietary technology footprint consists of portfolio monitoring systems for institutional clients, a document retrieval database, and Electronic Discovery platforms — none of which are exposed as client-facing products. New matters are sourced through a "Join a Case" web portal with per-investigation intake forms, email outreach, and a Cases/News section that functions as ongoing press-style communications. The firm claims lifetime recoveries exceeding $1 billion across hundreds of stockholder class and derivative matters, with headline cases including a $665 million California DMV smog-fee recovery, $205 million in the Marsh & McLennan derivative litigation, $127.5 million in the Edward D. Jones class action, and $100 million in the Freddie Mac derivative litigation.
WeissLaw serves shareholders of publicly traded companies, institutional investment clients (domestic and foreign), and consumer classes harmed by privacy violations, false advertising, and deceptive trade practices. The firm is privately held, has no parent company or institutional investors, and does not disclose revenue, contingency percentages, or cap-table data. Growth in 2024 is being driven by an active pipeline of M&A breach-of-fiduciary-duty investigations tied to billion-dollar take-private and strategic transactions.
WeissLaw LLP firmographics
Firmographics- Name
- WeissLaw LLP
- Legal name
- WeissLaw LLP
- Website
- https://weisslaw.co
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- WeissLaw LLP is a New York-headquartered plaintiff-side litigation firm specializing in securities class actions, shareholder derivative suits, consumer class actions, and M&A shareholder litigation, representing individual and institutional investors on a contingent-fee basis across four U.S. offices.
- Ownership category
- akta.pro rank
WeissLaw LLP industry classification
Industry- Product category
- Plaintiff-side Securities & Shareholder Litigation Legal Services
- NAICS
- Offices of Lawyers (541110)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI)
Keywords
Where WeissLaw LLP is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices4 records
Markets served
WeissLaw LLP business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Others
Revenue model
- Contingency fee litigation: WeissLaw LLP prosecutes actions on a contingent fee basis and advances all costs and expenses. The firm recovers compensation as a percentage of settlements or judgments obtained in securities class actions, shareholder derivative actions, consumer class actions, and M&A litigation. Standard plaintiff-side law firm model: no upfront fees from clients.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Outcome Based/ Performance | Multi-year contract | Contingency fee representation for securities class actions and shareholder derivative actions |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
WeissLaw LLP product offering
Product offeringCore offering
WeissLaw LLP is a plaintiffs-side law firm that represents investors and consumers in securities class actions, shareholder derivative actions, consumer class actions, and M&A-related shareholder litigation. The firm prosecutes cases on a contingent fee basis, advancing all litigation costs and recovering compensation as a percentage of settlements or judgments. Practice is delivered through four chair-led groups (Corporate Governance Litigation, Consumer Litigation, plus Securities Class Action and M&A/Shareholder Litigation) and supported by an in-house portfolio monitoring and e-Discovery capability for institutional clients.
Product overview
WeissLaw LLP is a single unified law firm (not a modular software platform) that delivers plaintiff-side litigation services through four interrelated practice areas: Securities Class Action Litigation, Corporate Governance / Shareholder Derivative Litigation, Consumer Class Action Litigation, and Mergers & Acquisitions / Shareholder Litigation, supported by internal Institutional Portfolio Monitoring & Electronic Discovery capabilities. All four practice areas feed a single client engagement channel — the News and Cases / Join a Case Portal — through which prospective clients review active investigations and retain the firm on a contingent-fee basis via a Retainer Agreement or Derivative Retention Letter. The firm's practice areas collectively support its positioning as "one of the nation's premier law firms representing investors and consumers in class and derivative litigation."
Differentiator
Problem solved
Functional benefit
Products and services
- Securities Class Action Litigation
Quantifiable outcome
- Recovered over $1 billion for defrauded clients across hundreds of stockholder class and derivative actions
- +5 more outcomes
Companies that use WeissLaw LLP
Customer profileSegments3 records
Ideal customer profiles3 records
WeissLaw LLP technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
WeissLaw LLP partnerships and signals
Strategic signalScale indicators7 records
Recent moves5 records
Expansion highlights5 records
WeissLaw LLP competitors and assessment
Company assessmentDirect peers
- Labaton Sucharow LLP: Plaintiff-side securities class action and shareholder derivative firm with a dedicated institutional investor client base and portfolio monitoring service; operates an analogous contingency fee plaintiff model.
- Kessler Topaz Meltzer & Check LLP: Specialized plaintiff securities class action and derivative litigation firm with a strong institutional client roster; pursues the same type of fiduciary-duty and securities-fraud matters as WeissLaw on a contingency fee basis.
- Bernstein Litowitz Berger & Grossmann LLP: The largest and most recognized US plaintiff securities class action firm; competes head-to-head with WeissLaw for lead-counsel appointments on shareholder class actions and derivative litigation, with a similar contingency fee model and institutional client relationships.
- Robbins Geller Rudman & Dowd LLP: Premier plaintiffs-side securities class action and derivative litigation firm; routinely serves as lead counsel in major M&A and securities fraud cases (e.g., post-merger challenges), directly competing with WeissLaw for institutional plaintiff representation.
- Pomerantz LLP: Long-established plaintiff securities class action firm with deep experience in derivative and M&A litigation; competes with WeissLaw for lead counsel roles and institutional clients in US federal and state courts.
- Block & Leviton LLP: Plaintiff securities class action and shareholder rights boutique with significant overlap to WeissLaw's M&A and securities fraud investigation work, often competing for lead plaintiff roles.
- The Rosen Law Firm: National plaintiff securities class action firm that files shareholder class actions and derivative suits on contingency; comparable practice breadth and similar recruitment model via online 'Join a Case' intake forms.
- Levi & Korsinsky LLP: Plaintiff-side securities and consumer class action firm that prosecutes shareholder class actions and M&A-related litigation on contingency; comparable practice mix and online intake model to WeissLaw.
- Faruqi & Faruqi LLP: Plaintiff securities class action and consumer class action firm with an active M&A litigation practice; comparable contingency-fee model and similar case-initiation marketing approach via website-based investigation announcements.
- Glancy Prongay & Murray LLP: Active plaintiff securities class action and shareholder rights firm that files and prosecutes securities fraud class actions and derivative suits on a contingency basis — a near-direct peer in size and practice focus.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
WeissLaw LLP social profiles
Digital presenceWeissLaw LLP financial estimates
Financial estimateRevenue estimate
Valuation estimate
WeissLaw LLP leadership team
Management profileNumber of profiles
Profiles6 records
WeissLaw LLP funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WeissLaw LLP 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 WeissLaw LLP
What does WeissLaw LLP do?
WeissLaw LLP is a plaintiffs-side law firm that represents investors and consumers in securities class actions, shareholder derivative actions, consumer class actions, and M&A-related shareholder litigation. The firm prosecutes cases on a contingent fee basis, advancing all litigation costs and recovering compensation as a percentage of settlements or judgments. Practice is delivered through four chair-led groups (Corporate Governance Litigation, Consumer Litigation, plus Securities Class Action and M&A/Shareholder Litigation) and supported by an in-house portfolio monitoring and e-Discovery capability for institutional clients.
Is WeissLaw LLP a public or private company?
WeissLaw LLP is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was WeissLaw LLP founded?
WeissLaw LLP was founded in 2012. It employs 11 to 50 people.
Where is WeissLaw LLP based?
WeissLaw LLP is headquartered in New York, United States, in the North America region.
How does WeissLaw LLP make money?
One revenue line is on record: contingency fee litigation.
Who are WeissLaw LLP's main competitors?
Direct peers on record are Labaton Sucharow LLP, Kessler Topaz Meltzer & Check LLP, Bernstein Litowitz Berger & Grossmann LLP, Robbins Geller Rudman & Dowd LLP, Pomerantz LLP, Block & Leviton LLP, The Rosen Law Firm, Levi & Korsinsky LLP, Faruqi & Faruqi LLP and Glancy Prongay & Murray LLP.
Does WeissLaw LLP have an API?
No public API is recorded for WeissLaw LLP.
What industry is WeissLaw LLP in?
WeissLaw LLP's product category is Plaintiff-side Securities & Shareholder Litigation Legal Services. Its primary akta.pro industry code is BPAHAAAI, Mergers & Acquisitions (M&A) & Securities Law. Its NAICS code is 541110 and its SIC code is 8111.