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Products & Services
About Thumb Inc
Incorporated in 1987, Rules of Thumb has been involved in the development of many engineering and scientific applications. Our flagship product is the NetWeaver knowledge engineering software suite. BJSoftware is a wholly owned subsidiary of Rules of Thumb. Quick Links to the NetWeaver Help System: Introduction Terminology A brief history What is a knowledge base?
Its primary NAICS classification is 513210 (Software Publishers). Thumb Inc is one of 5,217 IT companies listed in Pennsylvania.
Business Contact Information
- Phone
- +1 (814) 7251846
- Website
- rules-of-thumb.com
- Address
- 7537 Buffalo Rd, Harborcreek, Pennsylvania, 16421, United States
Industry & Classification
- Industry
- IT
- Sector
- Software and Services
- Segment
- Software
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
- 37 (21-50)
- Annual Revenue
- $8.9M ($5M-$10M)
Thumb Inc: frequently asked questions
What does Thumb Inc do?
Incorporated in 1987, Rules of Thumb has been involved in the development of many engineering and scientific applications. Our flagship product is the NetWeaver knowledge engineering software suite. BJSoftware is a wholly owned subsidiary of Rules of Thumb.
Where is Thumb Inc located?
Thumb Inc is headquartered at 7537 Buffalo Rd, Harborcreek, Pennsylvania, 16421, United States.
How many employees does Thumb Inc have?
Thumb Inc has about 37 employees (the 21-50 range).
What is Thumb Inc's annual revenue?
Thumb Inc's annual revenue is estimated at $8.9M (the $5M-$10M range).
What industry is Thumb Inc in?
Thumb Inc is in the IT / Software and Services industry, and its primary NAICS code is 513210 (Software Publishers).
How can I contact Thumb Inc?
Its website is rules-of-thumb.com and its phone number is +1 (814) 7251846.
What companies are similar to Thumb Inc?
Other large iT companies in Pennsylvania include Binance, RELX Group, Shift4 and Light & Wonder.
Largest it companies in Pennsylvania
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Manufacturing sales in Pennsylvania, 2026
In Pennsylvania, Factur's 2026 study counted 44 manufacturing quotes worth $1.6M and 10 purchase orders over 12 months: 23% of quotes became orders, against 21% nationally. See the Pennsylvania data.
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