> 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/biotechnology-research/ # Biotechnology Companies in San Diego, CA The bigger biotechnology companies 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 biotechnology companies counted in San Diego, CA, the biggest by headcount range include Illumina, Neurocrine Biosciences and Crown Bioscience. They are mostly very small: 61% have 50 or fewer employees. ## Which biotechnology companies are in San Diego? Among the companies whose public profile lists Biotechnology Research as their industry and San Diego, CA as their headquarters, the biggest by headcount range include Illumina, Neurocrine Biosciences, Crown Bioscience, Cue Health and Gempharmatech. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Illumina | 5,001 to 10,000 | | Neurocrine Biosciences | 1,001 to 5,000 | | Crown Bioscience | 1,001 to 5,000 | | Cue Health | 1,001 to 5,000 | | Gempharmatech | 1,001 to 5,000 | | Immunitybio | 501 to 1,000 | | Biolegend | 501 to 1,000 | | Sorrento Therapeutics | 501 to 1,000 | | Maravai Lifesciences | 501 to 1,000 | | Technical Safety Services | 501 to 1,000 | | Precision Diagnostics | 501 to 1,000 | | Sequenom Laboratories | 501 to 1,000 | | Element Biosciences | 201 to 500 | | Poseida Therapeutics | 201 to 500 | | Mirati Therapeutics | 201 to 500 | | Singular Genomics | 201 to 500 | | Bionano | 201 to 500 | | Rayzebio | 201 to 500 | | Halozyme | 201 to 500 | | Vividion Therapeutics | 201 to 500 | | Cibus | 201 to 500 | | Sequoia Biotech Consulting | 201 to 500 | | Invivoscribe | 201 to 500 | | Desert King | 201 to 500 | | Kura Oncology | 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 biotechnology companies in San Diego do? Biotechnology Research is a broad label. The most common NAICS codes among them are 541714 (33%), 325412 (15%) and 325414 (10%). **Figure: What biotechnology companies in San Diego do.** Bars for the share of counted biotechnology companies with each code: 541714 33%, 325412 15%, 325414 10%, 541715 9%, 334516 4%, 541720 4%, 621511 4%. *Share of counted biotechnology companies in San Diego by their NAICS code.* [NAICS 541714](https://enrich.chat/naics/541714/)[NAICS 325412](https://enrich.chat/naics/325412/)[NAICS 325414](https://enrich.chat/naics/325414/)[NAICS 621511](https://enrich.chat/naics/621511/) ## How big are they? 61% of the biotechnology companies 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 biotechnology companies in San Diego.** Seven columns for the share of counted biotechnology companies in San Diego in each employee range: 11 to 50 61%, 51 to 200 30%, 201 to 500 5%, 501 to 1,000 3%, 1,001 to 5,000 2%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted biotechnology companies in San Diego in each employee range.* ## How old are they? Most were founded in the 2010s (49%), then the 2020s (20%). **Figure: When biotechnology companies in San Diego were founded.** Eight columns for the share of counted biotechnology companies in San Diego founded in each era: Before 1960 0%, 1960s 1%, 1970s 2%, 1980s 0%, 1990s 8%, 2000s 20%, 2010s 49%, 2020s 20%. *Share of counted biotechnology companies in San Diego by the era they were founded in, for the ones that list a founding year.* ## How biotechnology companies compare - 61% of biotechnology companies in San Diego have 50 or fewer employees, against 71% across other cities on this site. - 69% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at biotechnology companies in San Diego? The people to talk to are usually research operations, finance and procurement leaders. 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 biotechnology companies 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 research operations, finance and procurement leaders at biotechnology companies 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/)[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/)[Consulting Firms](https://enrich.chat/companies-in/san-diego-ca/business-consulting-and-services/)[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/) Biotechnology Companies in other cities: [Cambridge, MA](https://enrich.chat/companies-in/cambridge-ma/biotechnology-research/)[Boston, MA](https://enrich.chat/companies-in/boston-ma/biotechnology-research/)[San Francisco, CA](https://enrich.chat/companies-in/san-francisco-ca/biotechnology-research/)[Durham, NC](https://enrich.chat/companies-in/durham-nc/biotechnology-research/) ## Frequently asked questions ### Which are the biggest biotechnology companies in San Diego? Among those counted, they include Illumina, Neurocrine Biosciences, Crown Bioscience, Cue Health and Gempharmatech, ranked by headcount range. ### How big are biotechnology companies in San Diego? 61% 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 biotechnology research? Companies whose public profile lists Biotechnology Research as their industry and whose headquarters are in San Diego, CA. ## Try this prompt Find the people at biotechnology companies in San Diego ```text Use www.enrich.chat to find the research operations, finance and procurement leaders at biotechnology companies 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/) - [Biotechnology Companies in Cambridge](https://enrich.chat/companies-in/cambridge-ma/biotechnology-research/) - [Biotechnology Companies in Boston](https://enrich.chat/companies-in/boston-ma/biotechnology-research/) - [Biotechnology Companies in San Francisco](https://enrich.chat/companies-in/san-francisco-ca/biotechnology-research/) - [Biotechnology Companies in Durham](https://enrich.chat/companies-in/durham-nc/biotechnology-research/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)