Top Market Research Agencies in California

Founded in Kyiv in 2015, RegisTeam is a growth marketing agency that works with clients in the United States, Europe and Australia. Its work is built around two disciplines that carry most of its projects: search engine optimization and pay-per-click advertising, with CRM consulting and analytics supporting both. On the SEO side, the team handles technical audits, content and link building, and a newer line of work on visibility in AI search — making sure brands are cited in answers from ChatGPT, Google AI Overviews and similar tools. On the paid side, it plans and manages Google Ads accounts, from launch and tracking setup to ongoing optimization. CRM and automation projects connect marketing data to sales, so lead quality can be measured rather than guessed. According to its Clutch profile, RegisTeam has delivered more than 1,300 projects in over 25 countries and holds a 5.0 rating across 69 client reviews.

SeoProfy positions organic and AI search as a predictable revenue channel rather than a traffic exercise. The SEO agency says it has a team of more than 100 specialists, over 13 years of experience and more than 250 completed projects. Its services include SEO, link building, AEO for AI-generated answers, local SEO, SEO audits, content and recovery of sites hit by search penalties. Its clients include law firms, e-commerce stores, SaaS companies, healthcare providers and B2B businesses. Its client sectors also include home services and insurance. The agency offers market research and inbound marketing as well. SeoProfy works with clients across the United States, including California, Florida, Illinois, New York and Colorado, and in France and Italy. It is most useful for companies that see organic search as a core sales channel and want a large dedicated SEO team, and businesses that need an audit or recovery plan after losing rankings or being hit by a penalty.

Hospitality, travel, retail and e-commerce make up most of the client work at 3 Horizons Interactive, known as 3Hi. The small Los Angeles digital agency, with fewer than ten people, was founded in 2017, and its team says it brings more than 15 years of experience in the Los Angeles and New York markets. Its services include UX/UI and web design, SEO, growth marketing, social media marketing, AI integration, e-commerce, email marketing and PPC. Clients it lists include Kids2, LodgIQ, ParentCo and Dear Brightly. Its client sectors also include home services and insurance. The agency offers content marketing and market research as well. 3Hi works with businesses in California, including Los Angeles and San Diego, and elsewhere in the United States. It is best suited to hotels, travel companies and consumer brands that want a small, experienced team to redesign their site, improve search visibility and build social and email channels, with practical help adopting AI tools.