Haynes and Boone, LLP
Haynes and Boone is a Texas-founded international law firm with 1,200+ employees and 22 offices across the US, UK, Mexico, and China, providing litigation, M&A, intellectual property, and energy-related legal services to Fortune 500 enterprises and middle-market companies.
- Company typePrivate
- Founded1970
- HeadquartersAustin, United States
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
What Haynes and Boone, LLP does
Haynes and Boone, LLP is a Texas-rooted international law firm founded in 1970 and headquartered in Dallas (firmographic primary city: Austin), operating as a privately held limited liability partnership. The firm employs more than 1,200 people across 22 offices in the United States, the United Kingdom (London), Mexico (Mexico City), and China (Shanghai representative office). It serves large enterprises — including ExxonMobil, Halliburton, AT&T, the National Football League, Nucor, Omnicare/CVS Health, and IVI RMA North America — alongside middle-market clients in healthcare, construction, consumer goods, digital assets, and advanced technology such as quantum computing. Engagement is partner-led and conducted through direct enterprise field sales rather than intermediated distribution channels.
The firm's service portfolio spans litigation, corporate/M&A, intellectual property (including ranked patent prosecution), tax, restructuring, finance, energy and natural resources, digital assets and cryptocurrency, and emerging areas such as carbon capture, utilization, and storage (CCUS) and fertility care. Patent prosecution is a flagship capability, with the firm ranked 2nd among 250 US patent prosecution firms by LexDana in 2026 and 14 attorneys individually recognized by IAM Patent 1000. The firm does not develop proprietary technology products; it operates Harvey (an external legal-AI platform) as internal infrastructure for document summarization, data extraction, due diligence, and drafting, and serves as a design partner on Harvey's Command Center AI oversight product alongside other Am Law-equivalent firms.
The revenue model is professional services fees billed on a matter-by-matter basis; pricing is quote-based and non-public. M&A throughput is the most visible proxy for deal flow, with more than 500 M&A transactions completed in the past five years and aggregate deal value exceeding $50 billion. Distribution is direct partner-led engagement; laterals and partner additions drive organic capacity expansion, exemplified by the Charlotte office growing from a 2019 launch to 30 attorneys and 13 staff. The firm is also distinguished by workplace-culture infrastructure (HB Well wellness program, HB Building Leaders) that supports both retention and lateral hiring.
Haynes and Boone, LLP firmographics
Firmographics- Name
- Haynes and Boone, LLP
- Legal name
- Haynes and Boone, LLP
- Website
- https://haynesboone.com
- Company type
- Private
- Founded year
- 1970
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Haynes and Boone is a Texas-founded international law firm with 1,200+ employees and 22 offices across the US, UK, Mexico, and China, providing litigation, M&A, intellectual property, and energy-related legal services to Fortune 500 enterprises and middle-market companies.
- Ownership category
- akta.pro rank
Haynes and Boone, LLP industry classification
Industry- Product category
- Legal Services
- NAICS
- Offices of Lawyers (541110), Legal Services (5411)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI)
Keywords
Where Haynes and Boone, LLP is headquartered
LocationHeadquarters
- HQ city
- Austin
- HQ country
- United States
- HQ region
- North America
Offices20 records
Markets served
Haynes and Boone, LLP business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Legal Services — Professional Fees: Haynes Boone generates revenue through fees for legal services including litigation, M&A advisory, intellectual property, energy transactions, and regulatory compliance. The firm has handled more than 500 M&A transactions in the last five years with aggregate value exceeding $50 billion.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels8 records
Haynes and Boone, LLP product offering
Product offeringCore offering
Haynes and Boone, LLP is an international corporate law firm providing full-service legal counsel across litigation, corporate/M&A, intellectual property, tax, energy (including carbon capture/CCUS), digital assets, and regulatory compliance. The firm serves large enterprises and middle-market companies through 22 offices in the US, UK, Mexico, and China, and has handled more than 500 M&A transactions in the last five years with aggregate value exceeding $50 billion.
Product overview
Haynes and Boone, LLP is a full-service international law firm operating as a single integrated legal services platform rather than a modular software product. The firm offers comprehensive legal services across multiple practice areas including Litigation, Corporate/M&A, Intellectual Property, Tax, Energy (including Carbon Capture/CCUS), and Digital Assets. The HB Well wellness program supports employee wellbeing. The firm leverages technology including the Harvey AI platform for document processing, and maintains offices across the US, London, and Shanghai. Practice areas are delivered through collaborative teams rather than standalone product modules.
Differentiator
Problem solved
Functional benefit
Brands
- HB Well: Global wellness initiative offering resources, programs, trainings, and confidential support to all 1,200+ firm employees
- HB Building Leaders
- The Legal Landscape
- Wellness in Law
Products and services
- Litigation Services
Quantifiable outcome
- 500+ M&A transactions with aggregate value exceeding $50 billion in the last five years
- +3 more outcomes
Companies that use Haynes and Boone, LLP
Customer profileNamed customers13 records
Segments5 records
Ideal customer profiles5 records
Haynes and Boone, LLP technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability2 records
Haynes and Boone, LLP partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- HarveycoreHaynes Boone served as a design partner in the development of Harvey's Command Center oversight platform, which enables law firms and legal teams to monitor AI usage, track adoption trends, and benchmark against anonymized peer data from over 1,500 global deployments. The firm collaborated with Harvey on shaping the product's functionality and is entering early-access availability.
- Foley & LardnercoreFoley & Lardner served as a design partner with Harvey for the Command Center AI oversight platform, alongside Haynes Boone and other design partners.
- Clayton UtzcoreClayton Utz served as a design partner with Harvey for the Command Center AI oversight platform.
- Rajah & TanncoreRajah & Tann served as a design partner with Harvey for the Command Center AI oversight platform.
- DentsucoreDentsu served as a design partner with Harvey for the Command Center AI oversight platform.
- Delta Gold Technologies PLCcoreDelta Gold Technologies PLC appointed Haynes Boone as global intellectual property counsel to support its patent protection strategy in the quantum computing space. The firm, ranked second among 250 US patent prosecution law firms by LexDana, will work with Delta's research partners including the University of Toronto and Penn State.
- Omnicare (subsidiary of CVS Health)minorHaynes Boone served as legal advisor to Omnicare in its court-supervised sale process with GenieRx Holdings LLC as the stalking horse bidder. Advisors to Omnicare also included Jenner & Block LLP, Houlihan Lokey, and Alvarez & Marsal.
- Publishers and Author Groups (challengers of Texas READER law)minorHaynes Boone successfully challenged the Texas READER law requiring booksellers to assign sex-content ratings to books in public schools, winning a permanent injunction. The firm is now seeking $1.94 million in legal fees under federal civil rights fee-shifting provisions.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
Haynes and Boone, LLP competitors and assessment
Company assessmentDirect peers
- Baker McKenzie: Global full-service law firm of comparable scale (~$3B revenue, 13,000+ staff) with extensive cross-border M&A, energy, and IP practices. Directly comparable on international footprint and middle-to-large-cap transaction work.
- Hogan Lovells: International full-service law firm with strong energy, life sciences, and regulatory practices. Comparable to Haynes Boone on cross-border M&A, energy transition work, and enterprise client base.
- Norton Rose Fulbright: Global law firm with deep Texas roots (Houston/Dallas) and strong energy, finance, and cross-border practices. Highly comparable given overlapping geographic and sector focus.
- DLA Piper: Global full-service firm with comparable revenue scale, broad transactional practice, and significant cross-border M&A capability. Direct competitor for middle-market and enterprise work.
- Squire Patton Boggs: International law firm of similar scale with strong energy, financial services, and M&A practices. Closely comparable in middle-market transaction focus and energy sector depth.
- Foley & Lardner: Mid-sized full-service law firm of comparable scale with overlapping health care, IP, and energy practices; also a Harvey AI design partner, making it a direct comparable on technology adoption and practice mix.
Broad incumbents
- Latham & Watkins: Larger global law firm (AmLaw 3, ~$5B+ revenue) competing with Haynes Boone on enterprise M&A, securities litigation, and energy matters. Operates in overlapping spaces but at a larger scale and premium positioning.
- Kirkland & Ellis: Largest law firm by revenue globally, dominant in M&A and private equity. Competes with Haynes Boone on large M&A mandates, particularly middle-market PE-backed deals.
- Sidley Austin: Large international law firm with strong M&A, securities, and energy practices. Comparable on ExxonMobil-class securities litigation and cross-border transactions.
- White & Case: Global law firm with strong cross-border M&A and energy practices, particularly in emerging markets and LNG transactions where Haynes Boone also operates.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Haynes and Boone, LLP social profiles
Digital presenceHaynes and Boone, LLP financial estimates
Financial estimateRevenue estimate
Valuation estimate
Haynes and Boone, LLP leadership team
Management profileNumber of profiles
Profiles1 record
Haynes and Boone, LLP funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Haynes and Boone, 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 Haynes and Boone, LLP
What does Haynes and Boone, LLP do?
Haynes and Boone, LLP is an international corporate law firm providing full-service legal counsel across litigation, corporate/M&A, intellectual property, tax, energy (including carbon capture/CCUS), digital assets, and regulatory compliance. The firm serves large enterprises and middle-market companies through 22 offices in the US, UK, Mexico, and China, and has handled more than 500 M&A transactions in the last five years with aggregate value exceeding $50 billion.
Is Haynes and Boone, LLP a public or private company?
Haynes and Boone, LLP is a private company. It is classified as management employee owned and is currently operating.
When was Haynes and Boone, LLP founded?
Haynes and Boone, LLP was founded in 1970. It employs 501 to 1,000 people.
Where is Haynes and Boone, LLP based?
Haynes and Boone, LLP is headquartered in Austin, United States, in the North America region.
How does Haynes and Boone, LLP make money?
One revenue line is on record: legal Services — Professional Fees.
Who are Haynes and Boone, LLP's main competitors?
Direct peers on record are Baker McKenzie, Hogan Lovells, Norton Rose Fulbright, DLA Piper, Squire Patton Boggs and Foley & Lardner. Broad incumbents are Latham & Watkins, Kirkland & Ellis, Sidley Austin and White & Case.
Does Haynes and Boone, LLP have an API?
No public API is recorded for Haynes and Boone, LLP.
What industry is Haynes and Boone, LLP in?
Haynes and Boone, LLP's product category is 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.