Constantine Cannon
- Company typePrivate
- Founded1994
- HeadquartersLondon, United Kingdom
- Headcount51–100
- GTM typeB2B and B2C
- OfferingServices
Constantine Cannon firmographics
Firmographics- Name
- Constantine Cannon
- Legal name
- Constantine Cannon LLP
- Website
- https://constantinecannon.com
- Company type
- Private
- Founded year
- 1994
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Ownership category
- akta.pro rank
Constantine Cannon industry classification
Industry- Product category
- Legal Services
- NAICS
- Offices of Lawyers (541110), Offices of Lawyers (54111), Legal Services (5411)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- White-Collar Defense & Investigations (BPAHAAAJ)
- akta.pro secondary industries
- Litigation Support & Expert Witness Services (BPAHALAG), Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI), Litigation Support & Expert Witness (Valuation-Related) (BPAHANAG)
Keywords
Where Constantine Cannon is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
Constantine Cannon business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Legal Services - Contingency Fee (Whistleblower Cases): Whistleblower cases typically operate on contingency fee basis where attorneys receive a percentage of awards and settlements. The firm has recovered more than $450 million in awards for whistleblowers over two decades. Total representations have led to more than $1 billion in government and whistleblower recoveries.
- Legal Services - Hourly/Billable (Antitrust & Commercial Litigation): Traditional billable hour legal services for antitrust litigation, commercial litigation, compliance, investigations, government affairs, and intellectual property matters. Represents both plaintiffs and defendants.
- Class Action Representation: Lead counsel in major class action settlements including $3.05 billion settlement plus injunctive relief valued at $25-87 billion and $2.75 billion settlement. Fee arrangements include percentage of recovery.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Whistleblower case evaluation and representation |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels8 records
Constantine Cannon product offering
Product offeringCore offering
Constantine Cannon is a boutique U.S. law firm providing specialized legal services in antitrust litigation and counseling, whistleblower representation under the False Claims Act, Dodd-Frank, SEC, CFTC, and IRS programs, complex commercial litigation, compliance and monitoring, e-discovery counseling, government affairs, and intellectual property & technology matters. The firm represents both plaintiffs and defendants across Fortune 250 corporations, partnerships, government agencies, and individual whistleblowers.
Product overview
Constantine Cannon is a law firm offering legal services rather than a software product. The firm operates as a single integrated practice delivering legal services across multiple specialized practice areas: Antitrust Litigation & Counseling (including Electronic Payments, Healthcare & Pharmaceutical, High Tech/Media, and Transportation subspecialties), Whistleblower Representation (with False Claims Act, SEC, CFTC, IRS programs), Commercial Litigation, Compliance/Monitoring/Investigations, E-Discovery Counseling, Government Affairs, and Intellectual Property & Technology. The firm supplements its legal services with knowledge resources including the Antitrust Today Blog, Whistleblower Insider Blog, and C|C Payments Blog. The firm has offices in New York, Washington D.C., and San Francisco.
Differentiator
Problem solved
Functional benefit
Brands
- Whistleblower Insider Blog: A blog written by the Constantine Cannon whistleblower law team providing the latest whistleblower and fraud news and developments.
- Antitrust Today Blog
- C|C Payments Blog
- Antitrust Matters Podcast
Products and services
- Antitrust Litigation & Counseling
- Whistleblower Representation
- Commercial Litigation
- Compliance, Monitoring & Investigations
- E-Discovery Counseling
- Government Affairs
- Intellectual Property & Technology
Quantifiable outcome
- $3.05 billion settlement plus injunctive relief valued at $25-$87 billion for retailers in Visa/MasterCard case
- +4 more outcomes
Companies that use Constantine Cannon
Customer profileNamed customers15 records
Segments4 records
Ideal customer profiles3 records
Constantine Cannon technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Constantine Cannon partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- Whistleblower Partners LLPcoreCo-counsel relationship in False Claims Act qui tam litigation. Represented whistleblower alongside Constantine Cannon and Whistleblower Law Collaborative in case against Study Across the Pond for violating the Incentive Compensation Ban. Settlement of $1.3 million achieved for U.S. government.
- Whistleblower Law CollaborativecoreCo-counsel in False Claims Act qui tam case with Constantine Cannon and Whistleblower Partners LLP. Coalition of three law firms successfully represented whistleblower in landmark case concerning American students studying abroad.
Scale indicators9 records
Recent moves7 records
Expansion highlights5 records
Constantine Cannon competitors and assessment
Company assessmentDirect peers
- Hagens Berman: Plaintiff-side complex litigation boutique specializing in class actions including antitrust and consumer protection. Comparable to Constantine Cannon's class action work on payment card and healthcare antitrust matters.
- Susman Godfrey: Trial-focused boutique handling bet-the-company commercial litigation for plaintiffs and defendants. Comparable to Constantine Cannon's commercial litigation practice with similar high-stakes plaintiff mandate approach.
- Boies Schiller Flexner: Elite litigation boutique with strong antitrust and complex commercial practice. Comparable to Constantine Cannon in representing Fortune 500 clients and individuals in bet-the-company matters.
- Labaton Sucharow: Premier whistleblower and securities class action firm representing SEC/Dodd-Frank whistleblowers. Direct competitor in the whistleblower contingency-fee space, with similar SEC, CFTC, and FCA practices.
- Robbins Geller Rudman & Dowd: Largest securities class action firm in U.S., also handles antitrust and whistleblower matters. Comparable to Constantine Cannon for securities-related and complex commercial litigation, with overlapping plaintiff-side mandate profile.
- Kessler Topaz Meltzer & Check: Plaintiff-side securities and antitrust class action boutique. Direct competitor for large-stakes class action leadership roles, similar fee structures and client base to Constantine Cannon.
- Scott+Scott: Specialized antitrust class action boutique representing plaintiffs in complex competition litigation. Directly comparable as a focused plaintiff-side antitrust competitor pursuing similar payment card and Big Tech matters.
- Cohen Milstein Sellers & Toll: Plaintiff-side boutique with strong antitrust, whistleblower, and complex litigation practices. Overlaps directly with Constantine Cannon in False Claims Act qui tam work and consumer class action antitrust matters.
- Lieff Cabraser Heimann & Bernstein: National plaintiff-side class action boutique covering antitrust, securities, and consumer protection. Direct competitor in complex class action leadership and overlapping with Constantine Cannon's plaintiff focus.
Broad incumbents
- Quinn Emanuel Urquhart & Sullivan: Largest litigation-only firm in the world with premier antitrust practice handling both plaintiff and defense work. Directly comparable to Constantine Cannon's antitrust litigation and counseling practice but with broader geographic reach and significantly larger bench.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Constantine Cannon social profiles
Digital presenceConstantine Cannon financial estimates
Financial estimateRevenue estimate
Valuation estimate
Constantine Cannon leadership team
Management profileNumber of profiles
Profiles2 records
Constantine Cannon funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Constantine Cannon 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 Constantine Cannon
What does Constantine Cannon do?
Constantine Cannon is a boutique U.S. law firm providing specialized legal services in antitrust litigation and counseling, whistleblower representation under the False Claims Act, Dodd-Frank, SEC, CFTC, and IRS programs, complex commercial litigation, compliance and monitoring, e-discovery counseling, government affairs, and intellectual property & technology matters. The firm represents both plaintiffs and defendants across Fortune 250 corporations, partnerships, government agencies, and individual whistleblowers.
Is Constantine Cannon a public or private company?
Constantine Cannon is a private company. It is classified as management employee owned and is currently operating.
When was Constantine Cannon founded?
Constantine Cannon was founded in 1994. It employs 51 to 100 people.
Where is Constantine Cannon based?
Constantine Cannon is headquartered in London, United Kingdom, in the Europe region.
How does Constantine Cannon make money?
Three revenue lines are on record. Legal Services - Contingency Fee (Whistleblower Cases) is the primary driver. The others are legal Services - Hourly/Billable (Antitrust & Commercial Litigation) and class Action Representation.
Who are Constantine Cannon's main competitors?
Direct peers on record are Hagens Berman, Susman Godfrey, Boies Schiller Flexner, Labaton Sucharow, Robbins Geller Rudman & Dowd, Kessler Topaz Meltzer & Check, Scott+Scott, Cohen Milstein Sellers & Toll and Lieff Cabraser Heimann & Bernstein. Quinn Emanuel Urquhart & Sullivan is listed as a broad incumbent.
Does Constantine Cannon have an API?
No public API is recorded for Constantine Cannon.
What industry is Constantine Cannon in?
Constantine Cannon's product category is Legal Services. Its primary akta.pro industry code is BPAHAAAJ, White-Collar Defense & Investigations, with a secondary code of BPAHALAG, Litigation Support & Expert Witness Services. Its NAICS code is 541110 and its SIC code is 8111.