Looking for a market research agency in California's Orange County to help you make informed decisions? DesignRush connects you with top firms trusted by brands like Honeywell and Estee Lauder. With over 1M monthly visitors and 40,000+ vetted agencies, you can trust our platform to guide you in finding the right partner. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Best Orange County Market Research Firm Rankings

5 Companies - Rankings updated: July 03, 2026

DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.

United States × California × Orange County ×
  • IT, Business, BPO, Audit, Tax and Advisory are just the beginning.

    IT, Business, BPO, Audit, Tax and Advisory are just the beginning.

    Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and  [... view Grant Thornton profile ]

    Top Services:

    • Market Research
    • Business Consulting
    Location
    Orange County, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Collaborating for Lasting Impact in Business Consulting

    Collaborating for Lasting Impact in Business Consulting

    Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we empower remarkable achievements, solve complex problems, and drive meaningful progress for clients, professionals  [... view Deloitte profile ]

    Top Services:

    • Market Research
    • Business Consulting
    Location
    Orange County, California
    Number of Employees
    1000 & Up
    Portfolios Count
    6 Projects Listed
  • Building trust in society and solving important problems.

    Building trust in society and solving important problems.

    We’re a network of firms in 155 countries with over 284,000 people who are committed to delivering quality in BPO, project management, assurance, advisory, IT, and tax services.  [... view PwC profile ]

    Top Services:

    • Market Research
    • Business Consulting
    • BPO
    Location
    Orange County, California
    Number of Employees
    1000 & Up
  • Together, we achieve more.

    Together, we achieve more.

    Offering project management, business, and IT services. At KPMG LLP, their purpose is to turn knowledge into value for the benefit of their clients, people, and the capital markets.  [... view KPMG profile ]

    Top Services:

    • Market Research
    • Business Consulting
    Location
    Orange County, California
    Number of Employees
    1000 & Up
  • Now, for tomorrow.

    Now, for tomorrow.

    Offering AgTech, Business, and IT Services. Baker Tilly Canada Cooperative is a member of the global network of Baker Tilly International Limited, the members of which are separate and independent legal entities. Baker Tilly Canada refers to the association of member firms of Baker Tilly Canada Cooperative  [... view Baker Tilly profile ]

    Top Services:

    • Market Research
    • Business Consulting
    Location
    Orange County, California
    Number of Employees
    1000 & Up

About The Author and Expert Reviewer

Bojana Trajcheva is a seasoned content editor and innovation researcher with extensive experience in the tech and marketing industries. Formerly Editor-in-Chief at Studentsko Eho, she developed a strong foundation in content creation and editorial leadership. Bojana further honed her skills in senior innovation research roles and now brings this combined expertise to her work as an editor at DesignRush.

Lana Bečiragić is a seasoned marketing and operations leader with over a decade of experience spanning nonprofit and corporate sectors. Her diverse background includes impactful roles at the Red Cross, Philip Morris, and the Erasmus Student Network. As the Director of Operations at DesignRush, she excels in strengthening agency relationships, spearheading data-driven outreach, and optimizing operational workflows. In her tenure leading the Agency Directory, she achieved 200% of projected growth within six months, setting a new standard for team performance.