Find prospects like Symposium
Get a list of similar companies, matched by industry, size and location, ready for outreach.
Free sample of 25 companies by email within one business day. No spam: we only use your email for this request.
Products & Services
About Symposium
Symposium is listed as a company operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Professional Organizations and based in Windsor, California, United States.
Its primary NAICS classification is 813920 (Professional Organizations). Symposium is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (707) 8388800
- facebook.com/stimresmat
- Address
- 8790 Old Redwood Hwy, Windsor, California, 95492, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 81Other Services (except Public Administration)
- 8139Business, Professional, Labor, Political, and Similar Organizations
- 813920Professional Organizations
SIC Codes
- 86Membership Organizations
- 862Professional Membership Organizations
- 8621Professional Organizations
Company Details
- Employees
- 11 (11-20)
- Annual Revenue
- $1.6M ($1M-$5M)
Symposium: frequently asked questions
What does Symposium do?
Symposium is listed as a company operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Professional Organizations and based in Windsor, California, United States.
Where is Symposium located?
Symposium is headquartered at 8790 Old Redwood Hwy, Windsor, California, 95492, United States.
How many employees does Symposium have?
Symposium has about 11 employees (the 11-20 range).
What is Symposium's annual revenue?
Symposium's annual revenue is estimated at $1.6M (the $1M-$5M range).
What industry is Symposium in?
Symposium is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 813920 (Professional Organizations).
How can I contact Symposium?
Its website is stimuliresponsivematerials.org and its phone number is +1 (707) 8388800.
What companies are similar to Symposium?
Other large industrial & mechanical companies in California include State of California, TD SYNNEX Corp, University of California and Ingram Micro Holding Corp.
Largest industrial & mechanical companies in California
Largest companies in California
Largest industrial & mechanical companies
Manufacturing sales in California, 2026
In California, Factur's 2026 study counted 98 manufacturing quotes worth $14.7M and 18 purchase orders over 12 months: 18% of quotes became orders, against 21% nationally. See the California data.
Own this business?
Keep your profile accurate — or ask us to take it down. We acknowledge requests within 7 days and resolve them within 30 days.
Prefer email? privacy@facturmfg.com
Add this badge to your website — show visitors you're listed on Factur Data.