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Marketing Agencies
Review leading market research agencies serving USA clients, with company profiles that explain each provider's expertise, delivery focus and fit.
Use the comparison to build a shortlist, then review each agency profile for its specialty, location and approach.
Updated October 10, 2026
Side-by-side comparison of leading providers serving USA clients
| Company | Specialty | Location | Website |
|---|---|---|---|
| #1NielsenIQ (NIQ) | Consumer intelligence company formed when NielsenIQ and GfK combined in 2023, operating in 90+ markets. | Chicago, IL, USA | Visit site |
| #2Kantar | Data, insights and consulting company covering brand strategy, media effectiveness, shopper behaviour and creative testing. | London, United Kingdom | Visit site |
| #3Ipsos | Multinational research company offering custom research and consulting across advertising, customer loyalty, marketing, media and public opinion, with o… | Paris, France | Visit site |
| #4Nielsen | Audience measurement company best known for television ratings and audience measurement, and a major player in audio audience measurement alongside Kant… | New York, NY, USA | Visit site |
| #5Gartner | Research and advisory firm listed among the leading market research companies, positioned for enterprise advisory and technology market analysis rather… | Stamford, CT, USA | Visit site |
| #6IQVIA | Healthcare data and analytics company listed among the top market research firms, specializing in life sciences and pharmaceutical research, and an earl… | Durham, NC, USA | Visit site |
| #7Dynata | Market research data provider listed among the leading firms, cited specifically for massive-scale quantitative data collection and panel access. | Global / remote | Visit site |
| #8Forrester | Research and advisory firm with approximately 600 analysts, examining how technology relates to business challenges and customer experience. | Cambridge, MA, USA | Visit site |
| #9Mintel | Consulting and on-demand database provider whose Global New Product Database tracks 40,000+ new products launched monthly across 86 markets and 46 CPG c… | London, United Kingdom | Visit site |
| #10Circana | Retail and consumer market intelligence firm combining custom research with large-scale measurement to inform growth strategy and marketing decisions. | Chicago, IL, USA | Visit site |
Use this comparison to identify a shortlist, then review the detailed company profiles and USA buyer’s guide below.
Review the available information for each provider before requesting references, pricing and a project proposal.
Consumer intelligence company formed when NielsenIQ and GfK combined in 2023, operating in 90+ markets. Strongest in retail measurement and consumer panel data for CPG and retail, with connected in-store and online purchase tracking.
Visit website →Data, insights and consulting company covering brand strategy, media effectiveness, shopper behaviour and creative testing. Best known for brand tracking and brand equity measurement; Kantar Marketplace operates across 70+ markets.
Visit website →Multinational research company offering custom research and consulting across advertising, customer loyalty, marketing, media and public opinion, with offices in over 90 markets. Best known as a leader in public opinion polling.
Visit website →Audience measurement company best known for television ratings and audience measurement, and a major player in audio audience measurement alongside Kantar and GfK.
Visit website →Research and advisory firm listed among the leading market research companies, positioned for enterprise advisory and technology market analysis rather than consumer panel work.
Visit website →Healthcare data and analytics company listed among the top market research firms, specializing in life sciences and pharmaceutical research, and an early adopter of machine learning in research workflows.
Visit website →Market research data provider listed among the leading firms, cited specifically for massive-scale quantitative data collection and panel access.
Visit website →Research and advisory firm with approximately 600 analysts, examining how technology relates to business challenges and customer experience. Publishes the Forrester Wave vendor evaluations.
Visit website →Consulting and on-demand database provider whose Global New Product Database tracks 40,000+ new products launched monthly across 86 markets and 46 CPG categories.
Visit website →Retail and consumer market intelligence firm combining custom research with large-scale measurement to inform growth strategy and marketing decisions.
Visit website →Compare delivery models, rates, contracts and risk before selecting a provider for a US engagement.
This page lists 10 market research agencies providers that work with United States clients. We look at delivery track record, whether the team overlaps with US time zones, how they scope and price work, and whether they can sign standard US contracts including an MSA, SOW, NDA and mutual indemnity.
Firms currently featured include NielsenIQ (NIQ), Kantar, Ipsos, and Nielsen.
Delivery footprints on this list span Chicago, IL, USA, London, United Kingdom, Paris, France, and New York, NY, USA, so you can choose between onshore US delivery, nearshore teams with 3–5 hours of overlap, and offshore teams priced for volume work.
US buyers usually see three engagement models for market research agencies: fixed-scope projects, time and materials with a monthly cap, and a dedicated team retainer. Onshore US consultancies typically bill $138–$250 per hour, nearshore partners in Latin America $55–$95, and offshore teams $25–$55.
Ask for a rate card by role, not a blended rate — a blended number hides how much of the work is done by junior staff. For fixed-bid work, insist on a written change-order process, and for retainers, confirm the notice period and any minimum monthly hours.
Watch the total cost of ownership: discovery workshops, knowledge transfer, post-launch support, and the cost of taking the work back in house at the end.
Before you sign, confirm the provider carries professional liability (E&O) and cyber insurance with US-acceptable limits, and that the MSA clearly assigns IP ownership of all deliverables to you on payment.
If the engagement touches regulated data, get the compliance posture in writing: SOC 2 Type II for the provider's own systems, HIPAA with a signed BAA for health data, CCPA/CPRA handling for California consumer data, GLBA for financial services, and background-check policies for anyone with production access.
Also nail down worker classification and subcontracting — many US buyers require written approval before any part of the work is passed to a third party.
Run the same questions past two or three firms from this list and compare the answers side by side — the differences are usually more revealing than the proposals.
Practical answers for USA clients comparing providers, pricing and engagement models.
