Updated in November 2026
Top Software Development Companies in California
Vendorland Scores are based on service specialization, verified reviews, company experience, and market reputation. Learn how Vendorland Scores are calculated
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List of best software development firms in California
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California Leaders Board
1
Synoptek
2
Folio3
3
Light IT Global
4
Simform
5
Seasia Infotech
6
Vincit
7
Cyber Infrastructure
8
Calibraint
9
TheoremOne
10
Diffco
11
EffectiveSoft
12
ITRex Group
13
Kodexo Labs
14
Dreamer Technoland
15
TechnoScore
1
Synoptek
2
Folio3
3
Light IT Global
4
Simform
5
Seasia Infotech
6
Vincit
7
Cyber Infrastructure
8
Calibraint
9
TheoremOne
10
Diffco
11
EffectiveSoft
12
ITRex Group
13
Kodexo Labs
14
Dreamer Technoland
15
TechnoScore