Top 10 Data Engineering & Analytics Agencies in California (2026)

#1Tredence

California·Enterprise·13+ yrs·Score: 100

Website ↗View Profile →

Data science and engineering firm with 3000+ specialists providing end-to-end solutions from migration to AI-powered analytics.

#2ThirdEye Data

California·Small Team·16+ yrs·Score: 87

Website ↗View Profile →

Silicon Valley-based AI and data engineering firm specializing in enterprise data transformation and analytics solutions.

#3Hex

California·Mid-Size·6+ yrs·Score: 85

Website ↗View Profile →

Collaborative analytics workspace transforming how data teams work together with shareable data products.

#4OptiSol Business Solutions

California·Mid-Size·19+ yrs·Score: 85

Website ↗View Profile →

GenAI-powered data engineering firm delivering real-time analytics, automation, and scalable data solutions.

#5Addepto

California·Mid-Size·9+ yrs·Score: 83

Website ↗View Profile →

AI and data engineering consultancy developing automated data pipelines and advanced analytics solutions.

#6Analytica Consulting

California·Boutique·11+ yrs·Score: 83

Website ↗View Profile →

Technology services firm specializing in data analytics, visualization, engineering, governance, and data science.

#7Apexon

California·Enterprise·26+ yrs·Score: 83

Website ↗View Profile →

Digital-first technology services with 5,500+ engineers specializing in AI, analytics, cloud, and data solutions.

#8Azumo

California·Mid-Size·10+ yrs·Score: 83

Website ↗View Profile →

Bespoke software development services trusted by Facebook and United Health with expertise in AI, cloud, and data engineering.

#9Classic Informatics

California·Large Team·24+ yrs·Score: 83

Website ↗View Profile →

Leading data engineering company offering end-to-end services including ETL, data integration, and cloud architecture.

#10DataToBiz

California·Mid-Size·11+ yrs·Score: 83

Website ↗View Profile →

Data Science, AI, and BI consulting firm helping enterprises achieve their data-driven future goals.