10 Oct 2026 · TrustList Editorial
Only 26 of 84 funding announcements named a single customer
Our count of 84 October items finds 73 named a lead investor, 63 a stage and 6 a company-stated valuation, while none of the 48 customer or…
4 of 21 content marketing agencies ranked on evidence in the Q4 2026 edition.
Between them, the 21 content marketing agencies on this page cover arts, entertainment & music (8), consumer products & services (7), eCommerce (7) and advertising & marketing (5). 21 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
4 of 21 content marketing agencies ranked on evidence held on 9 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.

Arts, Entertainment & Music · Legal · Production · Also in Vancouver and United States
Horowitz Agency, Inc. is an integrated marketing and public relations firm founded by Seth Horowitz, a former marketing director at a law firm.
Why #1: Office in Los Angeles · In business 20+ years · Boutique, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Consumer Products & Services · Hospitality & Leisure · Real Estate
Cave. trades as Cave Social, a social-first creative agency based in Los Angeles.
Why #2 (shared): Based in Los Angeles, United States · In business 15+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Arts, Entertainment & Music · Consumer Products & Services · Advertising & Marketing
HireInfluence is an influencer marketing agency founded in 2011.
Why #2 (shared): Office in Los Angeles · Founded 2011, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Arts, Entertainment & Music · Business Services
InboundAV is a business development and digital marketing agency in Los Angeles, California. It helps B2B companies grow through HubSpot strategy, automation and CRM work.
Why #4: Based in Los Angeles, California · HubSpot partner, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Medical
Dodge Communications is listed under a profile that now presents the agency as MERGE, a marketing firm that blends storytelling with technology.
On record: Office in Los Angeles · Team of 700+, as stated on its own website, read 29 Sept 2026

Aquarius Advisers LLC is a marketing and communications agency that works as a virtual company, with principals in Boston and Los Angeles.
On record: Based in Boston and Los Angeles
simple · Also in Barnes
Blue mount publisher, which trades as Blue Mount Publisher, helps authors take a manuscript through to a published book.
On record: Based in Los Angeles, California, United States

Books
Book Writing League supports authors from first draft to publication, with a team that writes, edits and publishes books across many genres.

Boutique PR Firms NYC is the listing for Relevance International, a marketing and communications agency with offices in New York, London and Los Angeles.
On record: Office in Los Angeles · Boutique

Business Services · Legal Cannabis · Medical · Also in California and Newbury
Bynder Group is a Los Angeles agency that handles inbound marketing and website design for business-to-business companies.
On record: Based in Los Angeles, California, USA

Arts, Entertainment & Music · Consumer Products & Services · Non Profit
Dapper Goat Social Media is a marketing agency with offices in Los Angeles and Austin.
On record: Office in Los Angeles

Digital Inbound is an inbound marketing agency in Los Angeles, California.
On record: Based in Los Angeles, California, USA

Arts, Entertainment & Music · Consumer Products & Services · Advertising & Marketing
Disruptive Digita Agency is a production studio that shoots photography and video for brands, trading online as Disruptive Digital Agency.
On record: Address in Los Angeles

Arts, Entertainment & Music · Consumer Products & Services · Advertising & Marketing
Doan Consulting Group is the business of Daniel Doan, a California copywriter who writes sales and marketing copy for B2B companies.
On record: Based in Los Angeles, California

Advertising & Marketing · eCommerce · Production · Also in Culver City
FS Media Food Steez is a photo and video production company in Los Angeles, focused mainly on food and beverage work.
On record: Based in Culver City, Los Angeles, USA

Arts, Entertainment & Music · Automotive · Manufacturing
Garbage Dream is an independent marketing agency in Los Angeles that works with brands in the outdoor lifestyle and automotive space.
On record: Based in Los Angeles, California, USA

Consumer Products & Services · Advertising & Marketing · Business Services
Ghostwriting Professionals pairs authors with experienced ghostwriters and then supports the book through editing, production, publishing and promotion.

Arts, Entertainment & Music · Hospitality & Leisure · Automotive
Go Be Social Media is a Los Angeles agency that runs social media and public relations for brands.
On record: Based in Los Angeles, California, United States

Consumer Products & Services · Legal Cannabis · Real Estate
I Think an Idea is an SEO and internet marketing agency in Los Angeles.
On record: Based in Los Angeles, California, USA · Boutique

simple · Internet · SEO
Inside Market Strategy, often shortened to IMS, is a legal marketing agency.

Insight Creative Marketing works under the name Insight Social. It is a Los Angeles social media and content agency that runs fully remotely.
On record: Based in Los Angeles, California
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