List of Laboratories in California
California has 4,775 laboratories in this dataset, last verified September 6, 2026. That makes it the largest market for laboratories in the United States, with 13% of the national total, ahead of Texas (2,740).
Among cities, San Diego leads with 115, ahead of Richmond (105). Together the top two hold only 4.6% of all laboratories in California, so the market reaches well beyond its biggest cities.
Email is harder to come by in California: 885 records (18.5%) include an email address, well below the national rate of 26.8%, so phone should carry more of the outreach. 4,362 (91.4%) list a phone number, and 843 carry both.
62.8% of laboratories in California have a website, below the national average of 68.4%. The 1,774 without a site are a ready-made prospect list for web design and local SEO agencies.
Among the 2,831 rated laboratories in California, 42% hold a 5-star average, in line with the national figure of 45%. 423 are rated 1 to 2 stars (15% of rated businesses, in line with the national 15%), a natural shortlist for reputation management and review software.
Social Media Reach
652
639
573
276
YouTube
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Laboratories List in California
Browse a random sample of 15 records — see the exact fields and data quality before you download.
| LOGO | Business Name | Address | City | State | Country | Phone | Website | Reviews | Rating | FB | IG | LI | YT | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Covid-19 Vaccine Location-Lemon Grove Community Center | Address | Lemon Grove | California | United States | Email | Phone | — | 1 | 3 | — | — | — | — | ||
UCLA Olympic Analytical Lab | Address | Los Angeles | California | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
Lazar Research Laboratories, Inc. | Address | Los Angeles | California | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
 | Accumark Labs | Address | Anaheim | California | United States | Email | Phone | 6 | 5 | — | — | — | — | ||
COVID-19 Vaccine Location - UC Merced Fresno Center | Address | Fresno | California | United States | Email | Phone | — | 0 | 0 | — | — | — | — | ||
Foundation Laboratory | Address | Lancaster | California | United States | Email | Phone | 44 | 3.4 | — | — | — | ||||
 | Cutting Edge Testing | Address | Sherman Oaks | California | United States | Email | Phone | 10 | 3.9 | — | — | — | — | ||
 | Elite 48 | Address | Temple City | California | United States | Email | Phone | 0 | 0 | — | — | — | — | ||
Diassess | Address | Emeryville | California | United States | Email | Phone | 0 | 0 | — | — | — | — | |||
 | WestPac Labs | Address | Bakersfield | California | United States | Email | Phone | 48 | 3.2 | — | — | — | — | ||
 | Loma Linda Dermatopathology | Address | Loma Linda | California | United States | Email | Phone | 0 | 0 | — | — | — | — | ||
Trident Dental Laboratories | Address | Los Angeles | California | United States | Email | Phone | 0 | 0 | — | — | |||||
 | Prescient Medicine PersonalizeDx Labs | Address | Carlsbad | California | United States | Email | Phone | — | 4 | 2 | — | — | — | — | |
 | Quest Diagnostics | Address | Los Angeles | California | United States | Email | Phone | 163 | 3.3 | — | — | — | — | ||
 | Excelchem Laboratories, Inc. | Address | Rocklin | California | United States | Email | Phone | 10 | 3.8 | — |
This is a randomized preview — the full database contains 4,775 records with complete field coverage.
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4,775 verified records — emails, phones, social profiles and more. One-time payment, instant download.
What You Can Do with the List of Laboratories in California
This list is built for teams that sell to laboratories: medical supply distributors, practice software vendors, billing services and healthcare staffing agencies. It covers 4,775 laboratories in California, with the fields to call, email, segment and map them.
Who Sells to Laboratories in California
Each of these buyers can work the 4,775 businesses in this list as a pipeline for a different product:
- Medical and dental supply distributors: Open accounts with the 4,775 laboratories in California for consumables, instruments and equipment.
- Practice management and EHR software: Pitch scheduling, patient records and billing systems to independent practices.
- Medical billing and credentialing services: Offer to take claims, coding and payer enrollment off the front desk.
- Healthcare staffing agencies: Place nurses, medical assistants and front-office staff.
Phone, Email and Contact Form Outreach in California
Start with the 843 records that list both a phone number and an email address, then widen out channel by channel:
- Cold calling (4,362): 91.4% of records include a phone number for call campaigns, appointment setting and follow-ups.
- Email sequences (885): 18.5% of records include an email address, so use email as a follow-up touch rather than the lead channel.
- Website contact forms (856): businesses with a contact page URL give you another way in when no email is listed.
- CRM import: CSV and Excel files load into HubSpot, Salesforce, Zoho or Pipedrive, with city, state and postal code columns for assigning leads to reps.
Prospect Segments for Agencies in California
Filter the website, rating and social columns to pull the laboratories that fit a specific service before you pitch:
- No website listed (1,774): 37% of laboratories in California have no website on record, a direct prospect list for web designers and local SEO agencies.
- Rated 1 to 2 stars (423): businesses with poor Google ratings, prospects for reputation management and review generation services.
- No Facebook page (4,123): 86% have no Facebook page on record, an opening for social media management agencies.
Prioritize Cities Across California
The 4,775 laboratories in California are spread across 2 cities we track and many smaller towns, so rank areas before sending reps out:
- Top city markets: San Diego and Richmond hold 4.6% of records in California, the biggest clusters for in-person visits.
- Beyond the big cities: 4,555 records (95%) sit outside the 2 cities with their own list, reachable by phone and email without travel.
- Postal code patches: records include postal codes, so each rep can get a compact patch with no overlapping accounts.
- Route planning: records include latitude and longitude, so you can map accounts and plan visit days around clusters.
Data Coverage for Laboratories in California
4,775 records · verified September 6, 2026
- Phone numbers
- 4,362
- Email addresses
- 885
- Phone and email
- 843
- Websites
- 3,001
Google ratings· 2,831 rated (59%)
42% hold 5 stars
- 1-star rated
- 152
- 5.4% of rated
- 2-star rated
- 271
- 9.6% of rated
- 3-star rated
- 762
- 26.9% of rated
- 4-star rated
- 465
- 16.4% of rated
- 5-star rated
- 1,181
- 41.7% of rated
Social profiles:
- Facebook:652· 13.7%
- Instagram:639· 13.4%
- LinkedIn:573· 12%
- X (Twitter):491· 10.3%
- YouTube:276· 5.8%
Laboratories in California are a phone-first market: 91.4% list a phone number but only 18.5% publish an email. Among 2,831 rated laboratories, 42% hold 5 stars, a more even spread, so ratings separate businesses meaningfully.
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Frequently asked questions about Laboratories in California
Everything you need to know about our laboratories database for California: data quality, coverage, freshness, pricing, and formats. Last updated September 6, 2026.
How many Laboratories are there in California?
There are 4,775 laboratories in California in our verified database, as of September 6, 2026.
This covers independent operators, regional chains, and enterprise-scale businesses, across every city in California, for sales prospecting, competitive research, and territory planning.
How up to date is the Laboratories data for California?
This dataset was last updated in September 6, 2026.
Business contact data decays at roughly 2–3% per month as businesses close, move, or change details, so we re-verify our most-purchased datasets on a rolling basis.
Every file is also run through email verification before delivery, and past buyers are offered discounted refreshed versions as updates ship.
What fields are included in the Laboratories database for California?
Each record can include: business name, full address, phone number, email address, website URL, social profiles (LinkedIn, Facebook, Instagram, YouTube, X), review ratings, and category details, plus contact-page URLs where available.
Field coverage varies by record; the counts below and the free sample show you exactly what to expect before buying.
Where can I buy verified market intelligence data for Laboratories businesses in California?
InfiniteLeadsHub provides verified market intelligence datasets for laboratories businesses in California as a one-time purchase with no subscription.
Ideal for market research, sales planning, and business development.
How much does the Laboratories database for California cost?
The complete laboratories leads database for California costs $46 as a one-time payment.
You get instant access to all 4,775 records with no recurring fees, no per-record charges, and no seat limits.
It is a cost-effective alternative to subscription platforms that charge monthly for the same public business data.
Is this a cheaper alternative to subscription lead databases like ZoomInfo or Apollo?
Yes. For teams that need laboratories contacts in California specifically, a one-time $46 file is usually far cheaper than subscription platforms, which typically charge thousands of dollars per year with contracts and per-seat pricing.
Subscriptions make sense for large sales teams needing continuous multi-industry access; a one-time targeted list makes sense when you know exactly which niche and geography you're selling into.
Can I preview a sample of the Laboratories data before buying?
Yes. A free sample dataset is available so you can evaluate data quality, field coverage, and format before purchasing.
The sample is a representative slice of the full California laboratories database, including contact fields, social profiles, and ratings data.
How do I download the Laboratories list, and what file formats are available?
You get instant access after purchase. Files are delivered in CSV and Excel (XLSX) formats.
CSV and Excel import directly into CRMs like Salesforce, HubSpot, and Zoho and into any email platform.
How many Laboratories in California have phone numbers?
4,362 laboratories in California (91% of the database) include a phone number.
That makes the dataset effective for cold calling, telemarketing, and appointment setting campaigns.
How many Laboratories in California have email addresses?
885 laboratories in California (19%) include an email address.
Email remains one of the highest-ROI B2B outreach channels, making this subset ideal for cold email sequences, product announcements, and drip campaigns.
How many Laboratories in California have both a phone number and an email address?
843 laboratories in California have both a phone number and an email address.
Dual-contact records enable multi-channel outreach: combining calls with email follow-ups measurably improves response rates.
How many Laboratories in California are active on social media?
Social profile coverage for laboratories in California: 573 on LinkedIn, 652 on Facebook, 639 on Instagram, 276 on YouTube, 491 on X (Twitter).
Social presence signals digitally engaged businesses, which is useful for agencies pitching social media services, ad platforms building audiences, and vendors targeting digitally mature prospects.
How many Laboratories in California have a website?
3,001 laboratories in California (63%) have an active business website.
That is an indicator of digital maturity, and an ideal segment for SEO agencies, hosting providers, and SaaS platforms.
How many Laboratories in California do not have a website?
1,774 laboratories in California operate without a business website.
These are high-intent, overlooked prospects for web design agencies, local SEO providers, and Google Business optimization services.
What are the review ratings of Laboratories in California?
Rating breakdown for laboratories in California: 1,181 with a 5-star rating, 465 with a 4-star rating, 762 with a 3-star rating, 271 with a 2-star rating, 152 with a 1-star rating.
Top-rated businesses suit premium services and partnership proposals; lower-rated businesses are receptive prospects for reputation management, review tools, and operational software.
Can I get Laboratories data for other states or the entire US?
Yes. The national Laboratories database covers all 50 US states, and individual state and major-city lists are also available.
If you buy California first, contact us and we'll credit your purchase toward the national upgrade.
Most multi-state buyers save money going national.
Is the Laboratories contact data in California legal to use for B2B outreach?
Yes. All data is sourced exclusively from publicly available information: Google Business listings, company websites, social media profiles, and public business directories.
This is business contact information, not personal consumer data, making it appropriate for B2B prospecting.
We recommend following applicable regulations such as CAN-SPAM (US), CASL (Canada), and GDPR (EU-targeted campaigns) so your outreach remains fully compliant.