Substack Inc
Commercial services · San Francisco, California
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Products & Services
About Substack Inc
Substack is the app for independent voices: a free newsletter, video, and podcast hosting platform with paid subscriptions built in. This profile covers Substack Inc, a company employing 501-1,000 people, reporting $100M-$250M in annual revenue, classified under Software Publishers, based in San Francisco, California, United States and operating in Office service.
Its primary NAICS classification is 513210 (Software Publishers). Substack Inc is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Website
- substack.com
- linkedin.com/company/substack
- facebook.com/substackinc
- Address
- 111 Sutter St, San Francisco, California, 94104, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 51Information
- 5132Software Publishers
- 513210Software Publishers
SIC Codes
- 73Business Services
- 737Computer Programming, Data Processing, And Other Computer Related Services
- 7372Software Publishers
Company Details
- Employees
- 973 (501-1,000)
- Annual Revenue
- $204.4M ($100M-$250M)
Substack Inc: frequently asked questions
What does Substack Inc do?
Substack is the app for independent voices: a free newsletter, video, and podcast hosting platform with paid subscriptions built in.
Where is Substack Inc located?
Substack Inc is headquartered at 111 Sutter St, San Francisco, California, 94104, United States.
How many employees does Substack Inc have?
Substack Inc has about 973 employees (the 501-1,000 range).
What is Substack Inc's annual revenue?
Substack Inc's annual revenue is estimated at $204.4M (the $100M-$250M range).
What industry is Substack Inc in?
Substack Inc is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 513210 (Software Publishers).
How can I contact Substack Inc?
Its website is substack.com.
What companies are similar to Substack Inc?
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.
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