Agencies offering Diary & Longitudinal Studies

Alter Agents

Alter Agents provides custom qualitative and quantitative market research, shopper research, and brand tracking. Its services combine interviews, focus groups, surveys, ethnography, diary studies, and neuroscience methods to inform marketing decisions.

AnswerLab

Headquarters in United States

Research and experience strategy firm using qualitative and quantitative studies to guide product, technology adoption, and customer decisions.

Anthro-Tech

Anthro-Tech provides human-centered design and UX research for government agencies, nonprofits, and organizations with a social-impact mission. Its services include field research, interviews, usability testing, and accessibility evaluation.

Bayfront UX

Headquarters in Sydney, Australia

Sydney consultancy providing user research, experience strategy and design. Services include discovery interviews, ethnography, diary studies, usability testing and participant recruitment in Australia and New Zealand, with international studies coordinated through UXalliance partners.

Bold Insight

Headquarters in United States

UX and human factors research consultancy using qualitative and quantitative methods to evaluate digital products, medical devices, and automotive experiences.

C+R Research

Custom research firm combining qualitative and quantitative studies, online communities, and UX research. Its qualitative services include focus groups, interviews, ethnography, and participant journaling.

Clarion Research

Headquarters in New York, United States

Custom research consultancy using surveys, qualitative studies, and analytics to investigate markets and customer behavior. Its work covers brand health, customer experience, advertising, product innovation, and pricing across domestic and international markets.

Curiosity

Headquarters in Manila, Philippines

Philippine design research consultancy offering user experience exploration, strategy research and concept development. Its researchers use interviews, ethnography, observation and usability tests to understand people and evaluate products, services and programmes.

Datum Internacional

Headquarters in Peru

Datum Internacional provides market and public-opinion research in Peru. Its methods include online surveys and focus groups, research communities, digital listening, and analysis of online behavior.

Dscout

Dscout provides a research platform and participant recruitment for product and experience research. It supports usability tests, interviews, field research, diary studies, surveys, and card sorting, with AI-assisted research tools.

Key Lime Interactive

Key Lime Interactive provides UX and customer-experience research across the product lifecycle. Its services include discovery interviews, ethnography, concept testing, usability evaluation, and research on emerging technologies.

MedPanel

MedPanel provides healthcare market research and recruitment of patients, caregivers, and healthcare professionals. Its qualitative and quantitative services include interviews, focus groups, surveys, and studies of pricing, positioning, and patient journeys.

Rakuten Insight

Headquarters in Tokyo, Japan

Online research and data collection provider within Rakuten Group. It offers access to proprietary panels in Asia and the US, supplemented by local partners, with survey programming, translation and tabulation as well as online qualitative studies.

Recollective

Recollective provides an online qualitative research and insight-community platform. It supports interviews, focus groups, diaries, concept tests, and UX studies, with optional programming and research-method consulting.

Symetria

Headquarters in Poznań, Poland

Symetria is a Poznań research and design consultancy providing UX and customer research, product evaluation and pricing studies using qualitative and quantitative methods.

Torresburriel Estudio

Headquarters in Madrid, Spain

Torresburriel Estudio conducts user research and usability testing to inform digital products and services, combining interviews, focus groups, ethnography, diary studies and quantitative analysis.

Touchstone Research

Headquarters in New Haven, United States

Full-service research agency conducting quantitative, qualitative and user-experience studies, with expertise in youth and family audiences. Builds research communities and online panels and provides participant recruitment, fieldwork and analysis.

Userlytics

Headquarters in Miami, United States

Userlytics provides a UX research platform, participant access, and expert research support. Its tools cover usability testing, card sorting and tree testing, surveys, diary studies, and heuristic analysis.

XplusX

Headquarters in Shanghai, China

User experience and human factors research consultancy with offices in Shanghai and Singapore, working within ReSight Global. It conducts ethnography, interviews, usability studies and medical-device human factors evaluations for local and international projects.

Zeldis Research Associates

Research consultancy providing qualitative and quantitative studies for financial services, healthcare, and education markets.