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Business Intelligence ConsultingTop 10 Elite
The very best agencies • View detailed Top 10
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Business Intelligence ConsultingComplete Top 25 Business Intelligence Consulting Agencies in California
Full numbered list of all 18 agencies
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Complete Top 25 Business Intelligence Consulting Agencies in California
Full numbered list of all 18 agencies
- 1.EY (Ernst & Young) — New York
- 2.KPMG — New York
- 3.PwC (PricewaterhouseCoopers) — New York
- 4.Booz Allen Hamilton — Virginia
- 5.FTI Consulting — New York
- 6.Hitachi Solutions America — California
- 7.BDO Digital — Illinois
- 8.Grant Thornton — Illinois
- 9.CGI Group — Virginia
- 10.Crowe — Illinois
- 11.North Highland — Georgia
- 12.Armanino — California
- 13.Blast Analytics — California
- 14.Keyrus — New York
- 15.West Monroe — Illinois
- 16.Sigma Infosolutions — California
- 17.Stratus Data — California
- 18.EPC Group — Texas
Top 25 Business Intelligence Consulting Agencies — FAQ
Common questions about the best business intelligence consulting agencies in California.
Who is the #1 business intelligence consulting agency in California in 2026?
As of 2026, the top-ranked business intelligence consulting agency in California on AgencyCluster is EY (Ernst & Young), with an AgencyCluster Score of 100/100. Rankings are based on verified evidence across credibility, proof of work, reputation, category specialization, delivery maturity, and freshness. Rankings are updated periodically as new evidence becomes available.
How were the top 25 business intelligence consulting agencies in California selected?
This list features 18 agencies selected from AgencyCluster's curated directory. Each agency was evaluated using the AgencyCluster Score (0–100), with particular weight on demonstrated expertise in business intelligence consulting. Only agencies with verified credentials are eligible, and rankings cannot be purchased. The agencies on this list average 49+ years of experience. For full methodology details, see our How We Rank page.
What should I look for when choosing a business intelligence consulting agency from this list?
Ask for case studies with measurable outcomes relevant to your specific project. Check team composition — do they have specialists or generalists? Ask about their communication cadence and project management approach. Request client references from companies of similar size and complexity to yours.
How much do the top business intelligence consulting agencies typically charge?
Project costs vary significantly based on complexity, team size, and engagement model. Request proposals from 3–5 agencies to benchmark pricing. Be cautious of quotes that are dramatically lower than others — they usually indicate corners being cut.
Trusted Rankings
Every agency on this list has been reviewed by our editorial team. Rankings are based on our transparent methodology which evaluates credibility, outcomes, and reputation.
No paid rankingsVerified credentialsUpdated regularly
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