Maldonado & Markham

What Maldonado & Markham does

Maldonado & Markham, operating under the legal name Law Office of William Markham, P.C., is a single-office antitrust and complex business litigation firm based in San Diego, California. Founded by William Markham in 1990 after initial training at Coudert Brothers LLP, the firm serves a roster of enterprise clients - including Aya Healthcare Services, Jensen Precast, Nichia Corporation, Orchard Supply Hardware, Masimo Corporation, and Isuzu Motors - engaged in federal and California antitrust matters, complex commercial disputes, real estate litigation, and appellate work. The practice is anchored in high-stakes antitrust litigation under the Sherman Act, Clayton Act, California's Cartwright Act, and the California Unfair Practices Act, and has produced notable outcomes including a $40 million recovery in a 2016 antitrust class action against 1-800 Contacts and a $10.4 million settlement in a complex trust asset dispute.

The firm operates a deliberately lean model of approximately three to five people: lead attorney William Markham (Harvard Law J.D., 1987; 38 years of California litigation experience), senior paralegal Laura Avila (since 2007), and paralegal Ana Ruiz (since 2011). Revenue is generated primarily through hourly legal services with alternative fee arrangements, leveraging flexible staffing and association with outside counsel on larger matters. Distribution is direct - personal engagement by Mr. Markham or Ms. Avila with conflicts checks, supplemented by inbound referrals from other law firms seeking experienced trial and appellate counsel, organic search driven by a longstanding library of published legal articles, and listings in Chambers and Super Lawyers directories. Marketing spend is minimal; positioning relies on the principal attorney's individual credentials, thought-leadership content, and a track record of successful appellate reversals including Ninth Circuit outcomes.

The firm is a private professional corporation wholly owned and managed by William Markham, with no external investment, parent entity, or capital-raising activity. There are no disclosed technology products, no API, no AI/ML capabilities, and no subsidiaries. Geographic practice extends across federal courts and California state courts, with representative engagements touching clients across healthcare staffing, manufacturing, medical devices, automotive, retail, and LED sectors - though firmographics explicitly list year founded as 2007 in some sources and 1990 in others, with the 1990 date reflecting Mr. Markham's establishment of his own practice.

Name

Maldonado & Markham

Legal name

Law Office of William Markham, P.C.

Website

https://markhamlawfirm.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Maldonado & Markham is a San Diego-based litigation firm providing antitrust, complex business, real estate, and appellate representation to enterprise clients from a deliberately lean three-to-five-person practice led by Harvard-trained attorney William Markham.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (541110)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Litigation & Dispute Resolution (BPAHAAAB)

akta.pro secondary industries

Business Valuation & Litigation Support (BPAHABAK), Litigation & Dispute Valuation (damages, shareholder disputes) (FSAEAHAI)

Keywords

• Antitrust litigation
• Business dispute resolution
• Commercial litigation services
• Real estate litigation
• Appellate litigation counsel

Headquarters

HQ city

San Diego

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Legal Services - Hourly Billing: Traditional hourly billing for litigation and legal counsel services with alternative fee arrangements available based on matter complexity and client needs.
2. Alternative Fee Arrangements: Flexible billing including alternative fee arrangements made possible by lean, efficient operation using flexible staffing and outside service-providers.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

The firm provides expert legal advocacy and counseling in antitrust law, complex business litigation, real estate litigation, and appellate litigation. It represents businesses and individuals in federal and California state courts, handles trial work referred by other law firms shortly before trial, and offers strategic antitrust counseling to global firms, startups, and other law firms. Lead attorney William Markham personally manages each matter and accepts only a limited number of engagements at any time.

Product overview

The Law Office of William Markham, P.C. is a San Diego-based law firm offering expert advocacy and counseling in core practice areas. The firm provides legal services through six interconnected offerings: Antitrust Litigation and Counseling (the flagship practice handling federal and state antitrust claims, competitor suits, and criminal investigation defense), Business Litigation (handling complex commercial disputes including trademark, false advertising, and securities matters), Real Estate Litigation (covering ownership disputes, eminent domain, and commercial lease conflicts), Appellate Litigation (federal and state appeals with successful reversal track record), Trial Work for Other Law Firms (referral trial counsel services), and Antitrust Counseling (strategic compliance advisory for global firms and startups). The firm is led by William Markham, a Harvard Law graduate with 38 years of California litigation experience.

Differentiator

Problem solved

Functional benefit

Products and services

• Antitrust Litigation and Counseling

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core and minor.

• Stanford University (Professor Robert Hall)coreStrategic or Co-development PartnerCollaboration with Professor Robert Hall (ret.), internationally famous antitrust economist at Stanford University and the Hoover Institution, in major antitrust litigation against AT&T and Oldcastle Precast regarding telephone vault monopolization claims.
• National Trade Association (ASTM Collaboration)minorStrategic or Co-development PartnerCollaborated with national trade association to persuade American Society for Testing and Materials (ASTM) to revise industry standards for construction materials that excluded precast concrete culverts.
• Forensic AccountantminorImplementation/ SI/ Consulting PartnerWorked closely with forensic accountant in complex trust asset dispute case involving improper transfers of substantial real estate interests.
• Agricultural Lands AppraiserminorImplementation/ SI/ Consulting PartnerCollaborated with highly experienced appraiser of agricultural lands in trust asset dispute involving complex land valuation issues.
• Other First-Rate AttorneyscoreStrategic or Co-development PartnerCan associate on short notice with other highly qualified attorneys for larger matters. Successfully done in major antitrust litigations and government investigations. Firm maintains lean operation while having access to additional legal resources when needed.

Scale indicators7 records

Recent moves6 records

Expansion highlights3 records

Broad incumbents

• Boies Schiller Flexner: Major trial and appellate firm with substantial antitrust and complex business litigation capabilities. Comparable in trial-first philosophy and appellate work, though significantly larger and broader.
• Quinn Emanuel Urquhart & Sullivan: The world's largest litigation-only law firm with extensive antitrust and appellate practices. Comparable for high-stakes complex business litigation; broader scope but represents the type of opponent/outcome the firm competes against.
• Susman Godfrey LLP: Houston- and Seattle-based nationally renowned commercial litigation boutique. Comparable as a high-stakes trial firm handling complex business disputes, antitrust, and commercial cases; broader portfolio but similar trial-first orientation.

Direct peers

• Berger Montague PC: Philadelphia-based complex civil litigation boutique with a strong antitrust and class action practice. Highly comparable as a litigation-only firm focused on plaintiff-side antitrust and complex commercial disputes, similar to the firm's positioning.
• Cohen Milstein Sellers & Toll: Washington, D.C.-based plaintiffs' firm with one of the largest dedicated antitrust practices in the U.S. Directly comparable to Maldonado & Markham as both prosecute complex antitrust class actions and represent plaintiffs against large corporate defendants, though Cohen Milstein operates at significantly greater scale.
• Lieff Cabraser Heimann & Bernstein: San Francisco-based nationally recognized plaintiffs' firm with a strong antitrust and complex litigation practice. Directly comparable as a California-headquartered complex litigation boutique serving similar enterprise and consumer clients.
• Hagens Berman Sobol Shapiro: Seattle-based plaintiffs' law firm with a major antitrust practice that has litigated high-profile class actions. Comparable as a sophisticated antitrust plaintiffs' boutique, though larger and more national in scope.
• Robins Kaplan LLP: Minneapolis-based firm widely recognized for its antitrust and business litigation practice under founding partner William Lerach lineage. Comparable in antitrust trial capability, though considerably larger and national.
• Scott+Scott Attorneys at Law: New York-based antitrust and consumer-protection litigation boutique. Comparable to Maldonado & Markham as a focused antitrust plaintiffs' firm pursuing complex federal class actions and commercial litigation.

Emerging players

• Nye Peabody Stirling Hale & Miller: Antitrust-focused plaintiffs' boutique that handles complex competition matters. Comparable as a smaller specialist antitrust firm with a similar orientation toward plaintiff-side representation under federal and state antitrust statutes.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/the-law-offices-of-william-markham-p.c.

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Maldonado & Markham