> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/washington-dc/business-consulting-and-services/ # Consulting Firms in Washington, DC The bigger consulting firms headquartered in Washington, DC, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the consulting firms counted in Washington, DC, the biggest by headcount range include Dentons Global Advisors, Fti Consulting and Gallup. They are mostly very small: 76% have 50 or fewer employees. ## Which consulting firms are in Washington, DC? Among the companies whose public profile lists Business Consulting and Services as their industry and Washington, DC as their headquarters, the biggest by headcount range include Dentons Global Advisors, Fti Consulting, Gallup, Palladium Make It Possible and Apco. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Dentons Global Advisors | 10,001+ | | Fti Consulting | 5,001 to 10,000 | | Gallup | 1,001 to 5,000 | | Palladium Make It Possible | 1,001 to 5,000 | | Apco | 1,001 to 5,000 | | Brg | 1,001 to 5,000 | | Compass Lexecon | 501 to 1,000 | | National Apex Accelerator Alliance - Napex | 501 to 1,000 | | Div 13 Society Of Consulting Psychology | 501 to 1,000 | | Metabiz | 501 to 1,000 | | Dga Group | 201 to 500 | | Avalere | 201 to 500 | | Bates White Economic Consulting | 201 to 500 | | Blackops Partners | 201 to 500 | | Telesolv Consulting | 201 to 500 | | Atlas Research | 201 to 500 | | Quadel | 201 to 500 | | Bcs | 201 to 500 | | Secretariat Economists | 201 to 500 | | Trust Consulting Services | 201 to 500 | | Strategix Management | 201 to 500 | | Seramount | 51 to 200 | | The Asia Group | 51 to 200 | | Kaiser Associates | 51 to 200 | | Washington Business Dynamics | 51 to 200 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## What do consulting firms in Washington, DC do? Business Consulting and Services is a broad label. The most common NAICS codes among them are 541611 (30%), 541618 (14%) and 541511 (7%). **Figure: What consulting firms in Washington do.** Bars for the share of counted consulting firms with each code: 541611 30%, 541618 14%, 541511 7%, 541512 5%, 541613 5%, 541330 4%, 541490 4%. *Share of counted consulting firms in Washington by their NAICS code.* [NAICS 541511](https://enrich.chat/naics/541511/)[NAICS 541512](https://enrich.chat/naics/541512/)[NAICS 541613](https://enrich.chat/naics/541613/) ## How big are they? 76% of the consulting firms counted in Washington, DC have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of consulting firms in Washington.** Seven columns for the share of counted consulting firms in Washington in each employee range: 11 to 50 76%, 51 to 200 18%, 201 to 500 3%, 501 to 1,000 1%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted consulting firms in Washington in each employee range.* ## How old are they? Most were founded in the 2010s (48%), then the 2000s (27%). **Figure: When consulting firms in Washington were founded.** Eight columns for the share of counted consulting firms in Washington founded in each era: Before 1960 1%, 1960s 1%, 1970s 1%, 1980s 2%, 1990s 7%, 2000s 27%, 2010s 48%, 2020s 14%. *Share of counted consulting firms in Washington by the era they were founded in, for the ones that list a founding year.* ## How do you reach the people at consulting firms in Washington, DC? The people to talk to are usually partners, practice leaders and heads of operations. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the consulting firms in Washington, DC ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the partners, practice leaders and heads of operations at consulting firms in Washington, DC, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Other industries in Washington, DC: [Nonprofit Organizations](https://enrich.chat/companies-in/washington-dc/non-profit-organizations/)[IT Services Companies](https://enrich.chat/companies-in/washington-dc/it-services-and-it-consulting/)[Real Estate Companies](https://enrich.chat/companies-in/washington-dc/real-estate/)[Software Companies](https://enrich.chat/companies-in/washington-dc/software-development/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/washington-dc/hospitals-and-health-care/)[Law Firms](https://enrich.chat/companies-in/washington-dc/law-practice/)[Financial Services Companies](https://enrich.chat/companies-in/washington-dc/financial-services/)[Construction Companies](https://enrich.chat/companies-in/washington-dc/construction/)[Public Relations Firms](https://enrich.chat/companies-in/washington-dc/public-relations-and-communications-services/)[Advertising Agencies](https://enrich.chat/companies-in/washington-dc/advertising-services/)[Technology and Internet Companies](https://enrich.chat/companies-in/washington-dc/technology-information-and-internet/)[Legal Services Firms](https://enrich.chat/companies-in/washington-dc/legal-services/)[Education Organizations](https://enrich.chat/companies-in/washington-dc/education-administration-programs/)[Colleges and Universities](https://enrich.chat/companies-in/washington-dc/higher-education/)[Government Agencies](https://enrich.chat/companies-in/washington-dc/government-administration/)[Research Services Firms](https://enrich.chat/companies-in/washington-dc/research-services/)[Architecture Firms](https://enrich.chat/companies-in/washington-dc/architecture-and-planning/)[Environmental Services Companies](https://enrich.chat/companies-in/washington-dc/environmental-services/)[Training and Coaching Firms](https://enrich.chat/companies-in/washington-dc/professional-training-and-coaching/)[All of Washington, DC](https://enrich.chat/companies-in/washington-dc/) Consulting Firms in other cities: [New York, NY](https://enrich.chat/companies-in/new-york-ny/business-consulting-and-services/)[Chicago, IL](https://enrich.chat/companies-in/chicago-il/business-consulting-and-services/)[Houston, TX](https://enrich.chat/companies-in/houston-tx/business-consulting-and-services/)[Atlanta, GA](https://enrich.chat/companies-in/atlanta-ga/business-consulting-and-services/)[Los Angeles, CA](https://enrich.chat/companies-in/los-angeles-ca/business-consulting-and-services/)[Miami, FL](https://enrich.chat/companies-in/miami-fl/business-consulting-and-services/)[Austin, TX](https://enrich.chat/companies-in/austin-tx/business-consulting-and-services/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/business-consulting-and-services/)[San Francisco, CA](https://enrich.chat/companies-in/san-francisco-ca/business-consulting-and-services/)[Boston, MA](https://enrich.chat/companies-in/boston-ma/business-consulting-and-services/) ## Frequently asked questions ### Which are the biggest consulting firms in Washington, DC? Among those counted, they include Dentons Global Advisors, Fti Consulting, Gallup, Palladium Make It Possible and Apco, ranked by headcount range. ### How big are consulting firms in Washington, DC? 76% of those counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Which companies count as business consulting and services? Companies whose public profile lists Business Consulting and Services as their industry and whose headquarters are in Washington, DC. ## Try this prompt Find the people at consulting firms in Washington, DC ```text Use www.enrich.chat to find the partners, practice leaders and heads of operations at consulting firms in Washington, DC, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Nonprofit Organizations in Washington, DC](https://enrich.chat/companies-in/washington-dc/non-profit-organizations/) - [IT Services Companies in Washington, DC](https://enrich.chat/companies-in/washington-dc/it-services-and-it-consulting/) - [Real Estate Companies in Washington, DC](https://enrich.chat/companies-in/washington-dc/real-estate/) - [Software Companies in Washington, DC](https://enrich.chat/companies-in/washington-dc/software-development/) - [Consulting Firms in New York](https://enrich.chat/companies-in/new-york-ny/business-consulting-and-services/) - [Consulting Firms in Chicago](https://enrich.chat/companies-in/chicago-il/business-consulting-and-services/) - [Consulting Firms in Houston](https://enrich.chat/companies-in/houston-tx/business-consulting-and-services/) - [Consulting Firms in Atlanta](https://enrich.chat/companies-in/atlanta-ga/business-consulting-and-services/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)