Professional Software Engineering
Software and Services · Petaluma, California
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Products & Services
About Professional Software Engineering
Professional Software Engineering is a company reporting $1M-$5M in annual revenue, classified under Custom Computer Programming Services, based in Petaluma, California, United States, operating in Software and employing 11-20 people.
Its primary NAICS classification is 541511 (Custom Computer Programming Services). Professional Software Engineering is one of 38,661 IT companies listed in California.
Business Contact Information
- Website
- professional.org
- Address
- PO Box 751224, Petaluma, California, 94975, United States
Industry & Classification
- Industry
- IT
- Sector
- Software and Services
- Segment
- Software
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
- 19 (11-20)
- Annual Revenue
- $3.1M ($1M-$5M)
Professional Software Engineering: frequently asked questions
What does Professional Software Engineering do?
Professional Software Engineering is a company reporting $1M-$5M in annual revenue, classified under Custom Computer Programming Services, based in Petaluma, California, United States, operating in Software and employing 11-20 people.
Where is Professional Software Engineering located?
Professional Software Engineering is headquartered at PO Box 751224, Petaluma, California, 94975, United States.
How many employees does Professional Software Engineering have?
Professional Software Engineering has about 19 employees (the 11-20 range).
What is Professional Software Engineering's annual revenue?
Professional Software Engineering's annual revenue is estimated at $3.1M (the $1M-$5M range).
What industry is Professional Software Engineering in?
Professional Software Engineering is in the IT / Software and Services industry, and its primary NAICS code is 541511 (Custom Computer Programming Services).
How can I contact Professional Software Engineering?
Its website is professional.org.
What companies are similar to Professional Software Engineering?
Other large iT companies in California include JD.com, Salesforce Inc, Didi Chuxing Technology Co and Adobe Inc.
Largest it companies in California
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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