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Products & Services
About CallHam.com
CallHam.com is a company classified under Custom Computer Programming Services, based in Houston, Texas, United States, operating in Office service, employing 6-10 people and reporting $1M-$5M in annual revenue.
Its primary NAICS classification is 541511 (Custom Computer Programming Services). CallHam.com is one of 1,586,245 Industrial & mechanical companies listed in Texas.
Business Contact Information
- Phone
- +1 (713) 5892960
- Website
- callham.com
- Address
- 405 Main St, Houston, Texas, 77002, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5415Computer Systems Design and Related Services
- 541511Custom Computer Programming Services
SIC Codes
- 73Business Services
- 737Computer Programming, Data Processing, And Other Computer Related Services
- 7371Custom Computer Programming Services
Company Details
- Employees
- 7 (6-10)
- Annual Revenue
- $1.8M ($1M-$5M)
CallHam.com: frequently asked questions
What does CallHam.com do?
CallHam.com is a company classified under Custom Computer Programming Services, based in Houston, Texas, United States, operating in Office service, employing 6-10 people and reporting $1M-$5M in annual revenue.
Where is CallHam.com located?
CallHam.com is headquartered at 405 Main St, Houston, Texas, 77002, United States.
How many employees does CallHam.com have?
CallHam.com has about 7 employees (the 6-10 range).
What is CallHam.com's annual revenue?
CallHam.com's annual revenue is estimated at $1.8M (the $1M-$5M range).
What industry is CallHam.com in?
CallHam.com is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541511 (Custom Computer Programming Services).
How can I contact CallHam.com?
Its website is callham.com and its phone number is +1 (713) 5892960.
What companies are similar to CallHam.com?
Other large industrial & mechanical companies in Texas include State of Texas, Phillips 66 Co, Foxconn Industrial Internet Co. Ltd and Accenture.
Largest industrial & mechanical companies in Texas
Largest companies in Texas
Largest industrial & mechanical companies
Manufacturing sales in Texas, 2026
In Texas, Factur's 2026 study counted 76 manufacturing quotes worth $23.7M and 13 purchase orders over 12 months: 17% of quotes became orders, against 21% nationally. See the Texas data.
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