> 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/san-diego-ca/business-consulting-and-services/ # Consulting Firms in San Diego, CA The bigger consulting firms headquartered in San Diego, CA, 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 San Diego, CA, the biggest by headcount range include Cask, Calpine Energy Solutions and Atlas. They are mostly very small: 74% have 50 or fewer employees. ## Which consulting firms are in San Diego? Among the companies whose public profile lists Business Consulting and Services as their industry and San Diego, CA as their headquarters, the biggest by headcount range include Cask, Calpine Energy Solutions, Atlas, Arcondis Usa and Red Seal. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Cask | 201 to 500 | | Calpine Energy Solutions | 201 to 500 | | Atlas | 201 to 500 | | Arcondis Usa | 201 to 500 | | Red Seal | 201 to 500 | | Easie | 201 to 500 | | Bainbridge | 51 to 200 | | Bespoke Partners | 51 to 200 | | The Marlin Alliance | 51 to 200 | | Pride Resource Partners | 51 to 200 | | Fmg Leading | 51 to 200 | | Limelight Media | 51 to 200 | | Prime Team Agency | 51 to 200 | | Trendsource | 51 to 200 | | 4liberty | 51 to 200 | | Cadre Ai | 51 to 200 | | Pbo Advisory Group | 51 to 200 | | Navaide | 51 to 200 | | Optima Office | 51 to 200 | | Massive Dynamics | 51 to 200 | | Templar Shield | 51 to 200 | | Unitriteam | 51 to 200 | | Freedom | 51 to 200 | | Alliant Consulting | 51 to 200 | | Lesar Development Consultants | 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 San Diego do? Business Consulting and Services is a broad label. The most common NAICS codes among them are 541611 (25%), 541618 (25%) and 541613 (11%). **Figure: What consulting firms in San Diego do.** Bars for the share of counted consulting firms with each code: 541611 25%, 541618 25%, 541613 11%, 221118 4%, 238210 4%, 335139 4%, 517810 4%. *Share of counted consulting firms in San Diego by their NAICS code.* [NAICS 541613](https://enrich.chat/naics/541613/)[NAICS 221118](https://enrich.chat/naics/221118/)[NAICS 238210](https://enrich.chat/naics/238210/)[NAICS 335139](https://enrich.chat/naics/335139/)[NAICS 517810](https://enrich.chat/naics/517810/) ## How big are they? 74% of the consulting firms counted in San Diego 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 San Diego.** Seven columns for the share of counted consulting firms in San Diego in each employee range: 11 to 50 74%, 51 to 200 22%, 201 to 500 4%, 501 to 1,000 0%, 1,001 to 5,000 0%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted consulting firms in San Diego in each employee range.* ## How old are they? Most were founded in the 2010s (47%), then the 2000s (23%). **Figure: When consulting firms in San Diego were founded.** Eight columns for the share of counted consulting firms in San Diego founded in each era: Before 1960 0%, 1960s 0%, 1970s 2%, 1980s 4%, 1990s 6%, 2000s 23%, 2010s 47%, 2020s 19%. *Share of counted consulting firms in San Diego by the era they were founded in, for the ones that list a founding year.* ## How consulting firms compare - 66% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at consulting firms in San Diego? 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 San Diego, CA ``` ### 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 San Diego, CA, 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 San Diego: [Construction Companies](https://enrich.chat/companies-in/san-diego-ca/construction/)[Software Companies](https://enrich.chat/companies-in/san-diego-ca/software-development/)[Real Estate Companies](https://enrich.chat/companies-in/san-diego-ca/real-estate/)[Advertising Agencies](https://enrich.chat/companies-in/san-diego-ca/advertising-services/)[IT Services Companies](https://enrich.chat/companies-in/san-diego-ca/it-services-and-it-consulting/)[Biotechnology Companies](https://enrich.chat/companies-in/san-diego-ca/biotechnology-research/)[Financial Services Companies](https://enrich.chat/companies-in/san-diego-ca/financial-services/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/san-diego-ca/hospitals-and-health-care/)[Nonprofit Organizations](https://enrich.chat/companies-in/san-diego-ca/non-profit-organizations/)[Technology and Internet Companies](https://enrich.chat/companies-in/san-diego-ca/technology-information-and-internet/)[Insurance Companies](https://enrich.chat/companies-in/san-diego-ca/insurance/)[Staffing and Recruiting Firms](https://enrich.chat/companies-in/san-diego-ca/staffing-and-recruiting/)[Electrical and Electronics Manufacturers](https://enrich.chat/companies-in/san-diego-ca/appliances-electrical-and-electronics-manufacturing/)[Architecture Firms](https://enrich.chat/companies-in/san-diego-ca/architecture-and-planning/)[Legal Services Firms](https://enrich.chat/companies-in/san-diego-ca/legal-services/)[Colleges and Universities](https://enrich.chat/companies-in/san-diego-ca/higher-education/)[Telecommunications Companies](https://enrich.chat/companies-in/san-diego-ca/telecommunications/)[Facilities Services Companies](https://enrich.chat/companies-in/san-diego-ca/facilities-services/)[All of San Diego](https://enrich.chat/companies-in/san-diego-ca/) 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/)[Washington, DC](https://enrich.chat/companies-in/washington-dc/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/) ## Frequently asked questions ### Which are the biggest consulting firms in San Diego? Among those counted, they include Cask, Calpine Energy Solutions, Atlas, Arcondis Usa and Red Seal, ranked by headcount range. ### How big are consulting firms in San Diego? 74% 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 San Diego, CA. ## Try this prompt Find the people at consulting firms in San Diego ```text Use www.enrich.chat to find the partners, practice leaders and heads of operations at consulting firms in San Diego, CA, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Construction Companies in San Diego](https://enrich.chat/companies-in/san-diego-ca/construction/) - [Software Companies in San Diego](https://enrich.chat/companies-in/san-diego-ca/software-development/) - [Real Estate Companies in San Diego](https://enrich.chat/companies-in/san-diego-ca/real-estate/) - [Advertising Agencies in San Diego](https://enrich.chat/companies-in/san-diego-ca/advertising-services/) - [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 Washington, DC](https://enrich.chat/companies-in/washington-dc/business-consulting-and-services/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)