Top Marketing Research Firms in California

Featured Marketing Research Firms in California

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118 results

in California

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118 results

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SIS International Research

SIS International Research

Data Collection

Full Service

International

LOCATION

New York, New York

SIS International Research

Data Collection

Full Service

International

SIS International Research, founded in 1984, is a leading full-service Market Research and Market Intelligence firm.

Why choose SIS International Research

Global Coverage

Full Service Capabilities

B2B & Industrial Research

Healthcare Research

Strategy Consulting

SKIM

SKIM

Full Service

International

Consulting

LOCATION

Hoboken, New Jersey

SKIM

Full Service

International

Consulting

Global insight-based consultants helping leading companies optimize their marketing strategies.

Why choose SKIM

Price&Portfolio Strategy

Decision Journey Mapping

Decades of Comm Research

Conjoint Analysis

CatalystMR

CatalystMR

Data Collection

Panels / Communities

Quantitative Research

LOCATION

Oakland, California

CatalystMR

Data Collection

Panels / Communities

Quantitative Research

CatalystMR is a global panel and MR services leader with 55 mil+ consumers, B2B and healthcare professionals across 59 countries.

Why choose CatalystMR

Top Panel Provider 2025

B2B,Healthcare,Consumer,Niche

Online & Phone Interviewing

AI Fraud Detection

Quirk's Top Company 2025 Quant

Harmon Research Group, LLC

Harmon Research Group, LLC

Data Collection

Quantitative Research

Qualitative Research

LOCATION

Anaheim, California

Harmon Research Group, LLC

Data Collection

Quantitative Research

Qualitative Research

HRG specializes in global data collection, survey programming, translation and data processing.

Why choose Harmon Research Group, LLC

Quant/Qual Data Collection

Gamified Fraud Prevention

AI Open End Probing

Huge Programming Team

DataDefense program