| # | Company | Employees |
|---|---|---|
| 1 |
Hogan Lovellshoganlovells.com
Global team of 2,600+ lawyers providing innovative legal solutions for major industries worldwide, with a focus on diversity, community impact, and business strategy alignment |
7,724 |
| 2 |
Jones Dayjonesday.com
Provides comprehensive legal services worldwide through a large network of lawyers collaborating across multiple disciplines and jurisdictions. |
6,417 |
| 3 |
Consilio LLCconsilio.com
Offers eDiscovery, document review, flexible legal talent, legal advisory, and transformation consulting services to law firms and corporations globally. |
3,639 |
| 4 |
Covington & Burling LLPcov.com
Global law firm providing expert legal services with commitment to clients, teamwork, diversity, public service, and complex business challenges. |
2,797 |
| 5 |
Arnold & Porterarnoldporter.com
A global law firm offering comprehensive legal services in regulatory, litigation, and transactional matters across various industries with a multidisciplinary approach |
2,470 |
| 6 |
WilmerHalewilmerhale.com
A leading international law firm with over 1,000 lawyers in 13 offices worldwide, specializing in government, technology, and business law Promotes diversity and public service |
2,356 |
| 7 |
BakerHostetlerbakerlaw.com
A leading law firm with top client service and legal expertise, offering assistance with complex business and regulatory issues worldwide |
2,291 |
| 8 |
Venable LLPvenable.com
A global law firm with over 900 professionals offering legal services in regulatory compliance, government affairs, corporate transactions, IP, and complex litigation to empower clients |
1,914 |
| 9 |
Crowell & Moringcrowell.com
International law firm providing legal services across multiple continents, specializing in litigation, arbitration, regulatory, corporate, and transactional issues Committed to pro bono work and diversity |
1,715 |
| 10 |
Hunton Andrews Kurth LLPhunton.com
A global law firm with 900+ lawyers offering comprehensive legal services in transactional, litigation, and regulatory matters across various industries and practice areas |
1,393 |
| 11 |
Steptoe LLPsteptoe.com
Provides international legal representation, litigation advocacy, arbitration, and practical business transaction advice with over 500 professionals worldwide. |
1,250 |
| 12 |
IRS, Office of Chief Counseljobs.irs.gov
A large tax firm with over 1,700 attorneys serving the IRS and the American public, promoting diversity, inclusion, and a balanced work environment |
1,114 |
| 13 |
ArentFox Schiffafslaw.com
Industry insiders offering practical business strategies and legal solutions to help clients reach their goals and anticipate future challenges |
1,004 |
| 14 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLPfinnegan.com
Provides comprehensive intellectual property legal services including litigation, patent strategy, and brand management with global presence and expertise. |
955 |
| 15 |
Williams & Connolly LLPwc.com
A leading litigation firm handling civil and criminal cases worldwide, renowned for excellence, top talent, diversity, and commitment to clients' best outcomes |
586 |
| 16 |
Wiley Rein LLPwiley.law
A prestigious law firm based in Washington DC, specializing in regulatory, litigation, and transactional matters for a diverse range of clients |
575 |
| 17 |
Solo Practicelinkedin.com
LinkedIn page for solo practice attorneys, showcasing their expertise and services for clients seeking legal guidance and representation |
528 |
| 18 |
Sterne, Kessler, Goldstein & Foxsternekessler.com
A leading intellectual property law firm offering tailored solutions for patents, trademarks, litigation, counseling, and post-grant proceedings with a diverse, highly skilled team |
508 |
| 19 |
Arent Foxafslaw.com
ArentFox Schiff is a legal firm offering a wide range of legal services to clients, operating with expertise and professionalism |
455 |
| 20 |
The Mendoza Law Firmmendozafirm.com
Provides expert legal representation specializing in personal injury cases, ensuring clients receive fair compensation and dedicated support. |
377 |
| 21 |
Beveridge & Diamond PCbdlaw.com
A team of 140+ lawyers in 7 US offices specializing in environmental and sustainability issues, offering strategic advice, regulatory compliance, and representation in litigation |
331 |
| 22 |
McKenna Long & Aldridge LLPdentons.com
A legal firm with over 1,100 professionals in 21 US cities, offering services in nine of the top 10 US legal markets |
307 |
| 23 |
Hausfeldhausfeld.com
Innovative law firm resolving disputes with a visionary approach, specializing in antitrust, financial disputes, environment, human rights, technology, and data breach cases |
278 |
| 24 |
U.S. Air Force JAG Corpsairforce.com
The company provides professional legal counsel and full spectrum legal capabilities to the Air Force, enabling command and supporting the warfighter |
261 |
| 25 |
Price Benowitz LLPpricebenowitz.com
A dedicated law firm specializing in personal injury cases and defense, providing a full range of legal services to protect clients' rights and pursue compensation |
186 |
| 26 |
Van Ness Feldman LLPvnf.com
Nationally recognized law firm specializing in energy, environment, and natural resources law & policy, providing legal counsel & policy strategy to clients |
182 |
| 27 |
Miller & Chevalier Charteredmillerchevalier.com
Established in 1920, this Washington, DC law firm specializes in Tax, International Law, Litigation, White Collar Defense, Government Contracts, and Government Affairs |
181 |
| 28 |
Groom Law Group, Charteredgroom.com
Specializes in employee benefits, health, and retirement law, providing innovative solutions, plan drafting, administrative practices, litigation, and legislative advice to diverse clients nationwide |
175 |
| 29 |
Wilkinson Barker Knauer, LLPwbklaw.com
A leading communications and technology law firm with offices in DC and Colorado, offering strategic advice, advocacy, and counsel on legal, regulatory, and policy issues |
158 |
| 30 |
Zuckerman Spaeder LLPzuckerman.com
A leading national litigation boutique with experienced attorneys providing solutions for complex legal problems in areas such as criminal investigations and healthcare disputes |
155 |
| 31 |
Kalbian Hagerty LLPkalbianhagerty.com
An international law firm providing services in corporate finance, litigation, real estate, tax planning, intellectual property, and more to clients worldwide |
21 |
| 32 |
Tucker PLLCtuckerfamilylaw.com
A leading family law firm in the DMV area, specializing in a wide range of family law matters with a focus on tailored strategies and integrity |
15 |
| 33 |
Leftwich LLCleftwichllc.com
A multi-disciplinary legal and consulting firm in the Greater Washington area, with experienced professionals providing advocacy for businesses in the Mid-Atlantic region |
11 |
| 34 |
Sweat Law Officessweatlaw.com
Established in 1979, this law firm specializes in Energy, Municipal, Business, and Real Estate Law, with a focus on Oil and Gas |
8 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 9, 2026.
More company lists in Washington
- The largest companies in Washington 1,082
- Non-profit Organizations companies in Washington 143
- Government Administration companies in Washington 99
- Financial Services companies in Washington 38
- SaaS companies in Washington 37
- Higher Education companies in Washington 35
- IT Services and IT Consulting companies in Washington 35
- Hospitals and Health Care companies in Washington 33
- Business Consulting and Services companies in Washington 32
- International Affairs companies in Washington 28