Products & Services
About Knowledge
The professional website for Hidden Knowledge, publishers of electronic books aka e-books. Authors include Chelsea Quinn Yarbro, Suzy McKee Charnas, James Killus, William Chandless, James W. Mackie, Burton Holmes, Octave Uzanne, Albert Robida, and more to come. E-books on history, travel, books about books, other interesting topics.
Its primary NAICS classification is 513130 (Book Publishers). Knowledge is one of 236,061 Communication companies listed in California.
Business Contact Information
- Phone
- +1 (408) 2983269
- Website
- hidden-knowledge.com
- Address
- 1181 Martin Ave, San Jose, California, 95126, United States
Industry & Classification
- Industry
- Communication
- Sector
- Media and Entertainment
- Segment
- Media
NAICS Codes
- 51Information
- 5131Newspaper, Periodical, Book, and Directory Publishers
- 513130Book Publishers
SIC Codes
- 27Printing, Publishing, And Allied Industries
- 273Books
- 2731Book Publishers
Company Details
- Employees
- 5 (1-5)
- Annual Revenue
- $1.4M ($1M-$5M)
Knowledge: frequently asked questions
What does Knowledge do?
The professional website for Hidden Knowledge, publishers of electronic books aka e-books. Authors include Chelsea Quinn Yarbro, Suzy McKee Charnas, James Killus, William Chandless, James W. Mackie, Burton Holmes, Octave Uzanne, Albert Robida, and more to come.
Where is Knowledge located?
Knowledge is headquartered at 1181 Martin Ave, San Jose, California, 95126, United States.
How many employees does Knowledge have?
Knowledge has about 5 employees (the 1-5 range).
What is Knowledge's annual revenue?
Knowledge's annual revenue is estimated at $1.4M (the $1M-$5M range).
What industry is Knowledge in?
Knowledge is in the Communication / Media and Entertainment industry, and its primary NAICS code is 513130 (Book Publishers).
How can I contact Knowledge?
Its website is hidden-knowledge.com and its phone number is +1 (408) 2983269.
Largest companies in California
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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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