Products & Services
About Castle
This profile covers Castle, a company employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services, based in San Francisco, California, United States and operating in Software.
Its primary NAICS classification is 518210 (Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services). Castle is one of 38,661 IT companies listed in California.
Business Contact Information
- Website
- castle.link
- Address
- San Francisco, California, United States
Industry & Classification
- Industry
- IT
- Sector
- Software and Services
- Segment
- Software
NAICS Codes
- 51Information
- 5182Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 518210Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7389Convention and Trade Show Organizers
Company Details
- Employees
- 13 (11-20)
- Annual Revenue
- $1.1M ($1M-$5M)
Castle: frequently asked questions
What does Castle do?
This profile covers Castle, a company employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services, based in San Francisco, California, United States and operating in Software.
Where is Castle located?
Castle is headquartered in San Francisco, California, United States.
How many employees does Castle have?
Castle has about 13 employees (the 11-20 range).
What is Castle's annual revenue?
Castle's annual revenue is estimated at $1.1M (the $1M-$5M range).
What industry is Castle in?
Castle is in the IT / Software and Services industry, and its primary NAICS code is 518210 (Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services).
How can I contact Castle?
Its website is castle.link.
What companies are similar to Castle?
Other large iT companies in California include JD.com, Salesforce Inc, Didi Chuxing Technology Co and Adobe Inc.
Largest it companies in California
Largest companies in California
Largest it 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.