14 Nov 2026 · TrustList Editorial
California proposes independent audits for data brokers from 2028
CalPrivacy's notice also amends the data broker registration and DROP rules; written comments close at 5 p.m. Pacific on 6 January 2027,…
52 of 134 advertising companies ranked on evidence in the Q4 2026 edition.
Between them, the 134 best-ranked of these 138 advertising companies cover advertising (37), creative (34), consumer products & services (28) and business services (25). They also list work in Los Angeles, San Diego, New York and York. 134 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
52 of 134 advertising companies ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.
Positions are fixed for the quarter; the next edition is due in January 2027.

Advertising · Creative · Responsive
eMedia Marketing Solutions is an advertising and marketing agency in Bakersfield, California.
On record: Based in Bakersfield, California
Creative · Partners
Engel Research Partners is a marketing research consultancy based in San Bruno, California.
On record: Based in San Bruno, California

Consumer Products & Services · Arts, Entertainment & Music · Information Technology
Epikta is an agency in Los Angeles that develops software, designs hardware products and creates brand identities.
On record: Based in Los Angeles, California

SEO · Also in San Diego, Ca and San Diego
eSearch Marketing is a web design and online marketing agency in San Diego, California. It builds websites and then promotes them through search and advertising.
On record: Based in San Diego, California, USA

Business Services · Information Technology · Retail
From San Diego, Esteemed Consulting runs a confidential peer advisory group for chief executives and founders, with private executive coaching alongside it. The group is selective.
On record: Based in San Diego, California

Business Services · Information Technology · Content Marketing
eTrigue provides a partner marketing automation platform and a team that runs campaigns on behalf of technology vendors.
On record: Based in San Jose, California, USA
Education
Evans Design is a digital marketing agency that describes itself as based in California and serving clients across the United States.
On record: Based in California, United States

Consumer Products & Services · Arts, Entertainment & Music · Information Technology
EVB, which stands for Evolution Bureau, is an advertising agency based in Oakland, California.
On record: Based in Oakland, California, United States

Consumer Products & Services · Business Services · SEO · Also in Austin and Seattle
Executive Decision Marketing runs its SEO and online marketing from Los Angeles, and lists New York, Florida, Seattle and Canada as the homes of its affiliates.
On record: Based in Los Angeles, California

Advertising · Creative · Also in Nice and Walnut Creek, California
F23 is a marketing agency in Walnut Creek, California. It offers advertising, collateral design and website development, and adapts its services to each client.
On record: Based in Walnut Creek, California, United States

Content Marketing · Dashboard
Marketing services provider offering websites, online sales, customer management and advertising tools for small businesses

Feld Direct, operating as Feld Advertising, is an advertising agency and production company in San Francisco.
On record: Based in San Francisco, California, USA

Digital and traditional campaigns come out of San Diego, California, where Fidelitas operates as a full-service marketing agency.
On record: Based in San Diego, California
Fidelitas Development appears on the same website as Fidelitas, a full-service marketing agency in San Diego, California.
On record: Based in San Diego, California

Consumer Products & Services · Real Estate · Medical
Five Creative Group is a small branding and communications studio in Fresno and Clovis, California.
On record: Based in Fresno and Clovis, California

Advertising · Creative · Branding
FOSSmg, the short name of Foss Marketing Group, has been an advertising and marketing agency since 2001.

Internet · Cloud
Based in Fresno, California, Fresno Webmasters is a web design and marketing firm.
On record: Based in Fresno, California, United States

Advertising · Creative · Partnership
Helping brands grow in what the agency calls today's America is the work of Gallegos United, an advertising agency built around cultural insight and creative work.

Consumer Products & Services · Hospitality & Leisure · Advertising & Marketing
Geared Advertising is a small marketing agency in Orange County, California, built around brand development and digital work.
On record: Based in Orange County, California, US
On record: Based in Modesto, California, US

Real Estate · Digital Marketing · Advertising
Operating from San Diego, California, Goozleology Inc takes on digital marketing for local service firms.
On record: Based in San Diego, California

Advertising · Creative · Branding · Also in Orange County
Working out of Long Beach, California, Group 181 presents itself as a full-service creative advertising and marketing agency.
On record: Based in Long Beach, California, USA

Creative · Automotive · Video · Also in Newport
Hype Media Group is based in Long Beach, California, and builds its marketing work around car dealerships.
On record: Based in Long Beach, California, USA

in Focus Advertising is a full-service marketing and advertising agency in Agoura Hills, California.
On record: Based in Agoura Hills, California · Small agency
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14 Nov 2026 · TrustList Editorial
CalPrivacy's notice also amends the data broker registration and DROP rules; written comments close at 5 p.m. Pacific on 6 January 2027,…
13 Nov 2026 · TrustList Editorial
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13 Nov 2026 · TrustList Editorial
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