Greines, Martin, Stein & Richland LLP

What Greines, Martin, Stein & Richland LLP does

Greines, Martin, Stein & Richland LLP (GMSR) is a California-based appellate law firm operating as a limited liability partnership for approximately 43 years, with offices in Los Angeles, San Francisco, and Costa Mesa (Orange County). The firm is a specialized appellate boutique focused exclusively on appellate litigation before the U.S. and California Supreme Courts, state and federal appellate courts, and trial courts on matters with appellate implications. Its 26 leading appellate lawyers serve six defined client segments: public entities, insurers, businesses, trial counsel (via referral collaboration), individuals, and community pro bono clients, with substantive expertise spanning lemon law (Song-Beverly Act), tort litigation, civil procedure, real property, professional malfeasance, punitive damages, and commercial disputes.

The firm's service portfolio is single-dimensional — human-delivered appellate legal services — and its underlying technology stack is limited to standard legal research, case management, and appellate brief preparation tools with no proprietary AI/ML capabilities disclosed. There are no products, APIs, or technology platforms beyond the practice itself.

GMSR generates revenue exclusively through professional legal fees, billed at standard attorney hourly rates or fixed fees for specific appellate matters, with multi-year engagements typical for complex appellate strategy work. The go-to-market motion is enterprise-field-sales style: clients are acquired through reputation, referrals from trial counsel, and established relationships with government entities. GMSR holds a sustained Tier 1 Chambers USA ranking for Appellate Law in California, a brand asset that anchors its premium pricing and referral pipeline.

Name

Greines, Martin, Stein & Richland LLP

Legal name

Greines, Martin, Stein & Richland LLP

Website

https://gmsr.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

11–50 employees

Short description

Greines, Martin, Stein & Richland LLP (GMSR) is a California appellate law firm with 26 leading attorneys operating from Los Angeles, San Francisco, and Orange County, representing public entities, insurers, businesses, trial counsel, and individuals in appellate matters before state and federal courts, including the U.S. and California Supreme Courts.

Ownership category

akta.pro rank

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Legal Services - Professional Fees: GMSR generates revenue through professional legal fees for appellate litigation services including U.S. and California Supreme Court cases, state and federal appellate courts, trial courts, and national/regional appellate strategy. Services are billed at standard attorney hourly rates or fixed fees for specific matters.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Greines, Martin, Stein & Richland LLP (GMSR) is a California-based appellate law firm providing specialized appellate litigation representation before the U.S. and California Supreme Courts, state and federal appellate courts, and trial courts. The firm delivers appellate strategy, brief writing, writ practice, and collaborative trial counsel support across substantive areas including tort litigation, lemon law, real property, professional malfeasance, and commercial disputes. Services are billed via attorney hourly rates or fixed fees and target public entities, insurers, businesses, trial counsel, and individuals.

Product overview

Greines, Martin, Stein & Richland LLP is a specialized appellate law firm offering a single, unified service: appellate litigation representation. The firm operates as a niche practice serving diverse clients including public entities, insurers, businesses, trial counsel, and individuals. Their services span multiple courts (U.S. Supreme Court, California Supreme Court, state and federal appellate courts, and trial courts) and cover specialized practice areas such as Lemon Law, tort litigation, real property disputes, professional malfeasance defense, punitive damages, civil procedure, and commercial litigation. The firm provides both direct appellate representation and collaborative support to trial counsel, with an emphasis on high-stakes appeals and complex legal issues.

Differentiator

Problem solved

Functional benefit

Products and services

• U.S. and California Supreme Court Practice Specialized appellate litigation and representation before the U.S. Supreme Court and the California Supreme Court, including petitioning for review and arguing high-stakes cases for public entities, insurers, businesses, and individuals.
• State and Federal Appellate Courts Practice Appellate representation before state and federal appellate courts, including appeals, writs, and oral argument for diverse client matters.
• Trial Courts Practice Representation in trial court matters with appellate implications, including motion practice and pre-trial appellate strategy.
• National and Regional Appellate Strategy Appellate strategy services spanning national and regional jurisdictions, coordinating multi-forum appellate representation for clients across the country.
• Public Entities Practice Legal representation and counsel for government entities and public institutions on appellate matters, legislative action, and complex laws impacting public entities.
• Insurers Practice Appellate representation for insurance companies on coverage, contribution, and bad faith litigation matters in state and federal appellate courts.
• Businesses Practice Corporate client representation providing objective assessments on appeal based on deep understanding of appellate review limitations and opportunities in commercial matters.
• Trial Counsel Collaboration Collaboration with trial counsel at any level from legal strategy to writing or editing trial court motions and appellate briefs for matters before trial.
• Individuals Practice Vigorous appellate advocacy for individual plaintiffs and defendants in both state and federal appellate courts.
• Community Pro Bono Practice Pro bono appellate services to individuals and community organizations on issues of social justice and equality before state and federal appellate courts.
• Lemon Law Practice Representation of consumers under California's Song-Beverly Consumer Warranty Act, including cases involving vehicle repurchase, repair, and manufacturer buy-back obligations.

Quantifiable outcome

• 43 years of appellate experience
• +2 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Mayer Brown LLP: A national firm with a leading Supreme Court and appellate practice. Competitor for premier appellate mandates despite broader full-service positioning.
• Irell & Manella LLP: A prominent Los Angeles-based full-service firm with a strong appellate and litigation practice. Competes with GMSR on complex appellate mandates and shares a Southern California/Orange County footprint.
• Norton Rose Fulbright US LLP: A global law firm with appellate capabilities serving insurers and corporate clients in California. Competes for appellate insurance and commercial mandates.
• O'Melveny & Myers LLP: A major global firm with deep California roots and a robust appellate practice regularly arguing before the U.S. and California Supreme Courts. Competes with GMSR for high-stakes appellate and trial-support work.
• Manatt, Phelps & Phillips LLP: A Los Angeles-based full-service firm with a strong litigation and appellate practice in California. Comparable in client mix including public-entity and corporate work.
• Munger, Tolles & Olson LLP: A high-end California-headquartered firm with a premier appellate practice that competes for Supreme Court-level mandates. Comparable in the caliber of work and clients, broader in practice scope.
• Lewis Brisbois Bisgaard & Smith LLP: One of California's largest litigation firms with a sizeable appellate practice competing across state appellate courts. Contrasts with GMSR's specialist positioning through scale and breadth.

Direct peers

• California Appellate Law Group LLP: A Sacramento-based appellate litigation boutique serving California appellate courts. Directly comparable as a niche appellate-only firm operating in the same state-court appellate arena as GMSR.
• Horvitz & Levy LLP: A California-based appellate boutique law firm focused exclusively on civil appeals, with a similar partnership-driven model and statewide appellate court practice. Closely comparable to GMSR in scope, prestige, and client mix.

Emerging players

• Bird, Marella, Boxer, Wolpert, Nessim, Drooks & Lincenberg PC: A Los Angeles-based commercial litigation boutique with significant appellate capabilities and a similar high-end referral-driven client base. Comparable in prestige tier though broader in scope than GMSR.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/143239
• Xx.com/gmsrlegal

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Greines, Martin, Stein & Richland LLP