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Products & Services
About Second Line
Second line basic information and a brief history. How a company can create a local or international brand with a 1800 number. Second Line is a company operating in Telecommunication providers, employing 51-100 people, reporting $10M-$25M in annual revenue, classified under Wired and Wireless Telecommunications (except Satellite) and based in San Francisco, California, United States.
Its primary NAICS classification is 517111 (Wired Telecommunications Carriers). Second Line is one of 236,061 Communication companies listed in California.
Business Contact Information
- Phone
- +1 (888) 8452800
- Website
- secondline.com
- linkedin.com/company/second-line
- Address
- 777 Valencia St, San Francisco, California, 94110, United States
Industry & Classification
- Industry
- Communication
- Sector
- Telecommunication
- Segment
- Telecommunication providers
NAICS Codes
- 51Information
- 5171Wired and Wireless Telecommunications (except Satellite)
- 517111Wired Telecommunications Carriers
SIC Codes
- 48Communications
- 481Telephone Communications
- 4813Wired Telecommunications Carriers
Company Details
- Employees
- 96 (51-100)
- Annual Revenue
- $20.2M ($10M-$25M)
Second Line: frequently asked questions
What does Second Line do?
Second line basic information and a brief history. How a company can create a local or international brand with a 1800 number.
Where is Second Line located?
Second Line is headquartered at 777 Valencia St, San Francisco, California, 94110, United States.
How many employees does Second Line have?
Second Line has about 96 employees (the 51-100 range).
What is Second Line's annual revenue?
Second Line's annual revenue is estimated at $20.2M (the $10M-$25M range).
What industry is Second Line in?
Second Line is in the Communication / Telecommunication industry, and its primary NAICS code is 517111 (Wired Telecommunications Carriers).
How can I contact Second Line?
Its website is secondline.com and its phone number is +1 (888) 8452800.
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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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