8 Oct 2026 · TrustList Editorial
Rein Security raises $25m Series A to secure AI agents at runtime
Total funding reaches $35m. Rein says revenue has grown eightfold and its customer count fivefold since a January 2026 launch, with…
14 of 43 content marketing agencies ranked on evidence in the Q4 2026 edition.
Between them, the 43 best-ranked of these 44 content marketing agencies cover consumer products & services (10), advertising & marketing (10), hospitality & leisure (10) and eCommerce (10). They also list work in York. 43 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
14 of 43 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.

Medical · Education
AXON Communications works only in healthcare, helping pharmaceutical and life-science clients explain science to doctors, patients and health systems.
Why #1: Based in Toronto, London, New York and Copenhagen · Founded 2002 · Team of 1,000+ · Client numbers stated on its own website, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Hospitality & Leisure · Financial Services · Digital Marketing · Also in York
Antyra Solutions is an integrated agency that brings creative work, technology and performance marketing together, with offices in New York, Singapore and Colombo.
Why #2: Office in New York · Google partner · Client numbers stated on its own website, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Supply Chain, Logistics, and Transport · Financial Services · Education · Also in York
HJMT Public Relations, Inc. is a public relations firm on Long Island, New York, serving the New York City area as well.
Why #3 (shared): Based in Long Island, New York · In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Butler Associates Pubilc Relations is a boutique PR and communications agency with its headquarters in Manhattan and a second office in Connecticut.
Why #3 (shared): Based in Manhattan, New York, with an office in Stamford, Connecticut · Founded 1996 · Boutique, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Advertising & Marketing · Information Technology
Exe Productions is a small digital agency based in Rochester, New York.
Why #5: Based in Rochester, New York · Founded 2001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Learning · Also in York
An independent digital marketing agency running paid media, performance marketing and optimisation using AI for growth brands
Why #6: Based in New York · Founded 2003, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Creative · Retail · Also in Bath
Daddi Brand Communications, now known as DBC, is a public relations and marketing agency in New York that focuses on advertising technology, marketing technology and data insights.
Why #7 (shared): Based in New York · Founded 2005 · Boutique, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Consumer Products & Services · Hospitality & Leisure · Business Services
Ingenious Inc. is a Buffalo, New York agency working on websites, web applications and online marketing. The company started in 2005 and still runs as a small team.
Why #7 (shared): Based in Buffalo, New York · Founded 2005 · Small team, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Ketner Group Communications is a public relations agency that works only with retail technology companies. It has done so for more than 20 years.
Why #9 (shared): Based in Austin, Texas, and New York · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

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 #9 (shared): Office in New York · 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 · eCommerce
Deelightful Studios is a social media and digital marketing agency in Rochester, New York.
Why #11 (shared): Based in Rochester, New York, United States · In business 15+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

SEO · SEM
Efferent Media is a digital marketing agency in Lindenhurst, on Long Island, New York. A family owns it, and it has operated in the same local market since 2011.
Why #11 (shared): Based in Lindenhurst, New York · Founded 2011 · Family owned, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Consumer Products & Services · Advertising & Marketing · Hospitality & Leisure
Concrete Blonde Consulting is a consulting and marketing firm in New York City with a strong public relations focus.
Why #13: Address in New York · Founded 2016, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Digital Marketing · SEO · Advertising
Interact Marketing is a full-service digital marketing agency in New York's Hudson Valley, close to New York City. It is a Google Certified Partner.
Why #14: Based in Hudson Valley, New York, USA · Google partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Advertising & Marketing · Hospitality & Leisure · Financial Services · Also in North America and York
Birnbach Communications is a public relations firm focused on media relations and thought leadership.
On record: In business 20+ years, as stated on its own website, read 28 Sept 2026

Consumer Products & Services · Financial Services · Real Estate · Also in York
Brandetize is a performance-based digital marketing agency built around personal brands.
On record: In business 20+ years, as stated on its own website, read 28 Sept 2026

Digital Marketing · Creative · Travel · Also in York
HEBS Digital works with hospitality and travel brands, and says it has done so for more than 20 years.
On record: In business 20+ years, as stated on its own website, read 5 Oct 2026

Consumer Products & Services · Advertising & Marketing · Hospitality & Leisure
DLG (Digital Luxury Group) is a marketing and intelligence agency that works only with luxury, premium and lifestyle brands.
On record: Office in New York · Team of 130+, as stated on its own website, read 29 Sept 2026

818 Agency is a New York marketing agency that works mainly for business-to-business events and a small number of other brands.
On record: Based in New York, US

Advertising & Marketing · Digital Marketing · App Development · Also in York
Antigua Web Solutions is a New York based digital marketing agency.
On record: Based in New York, USA

Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing
AOK Group works with early-stage and growth-stage technology founders on the brand, story and marketing needed for fast growth.
On record: Based in New York

Consumer Products & Services · Arts, Entertainment & Music · Hospitality & Leisure
Apologue is a New York marketing agency that helps brands tell their stories and turn that attention into sales.
On record: Based in New York, USA

Partners · Also in Adelaide
Blue Acorn, which trades as Blue Acorn iCi, is a digital agency that brings together ecommerce, customer experience and data analytics.
On record: Office in New York

Advertising & Marketing · Business Services · eCommerce
Book Writing Bureau is a book production company based in New York that helps people turn an idea into a published title.
On record: Based in New York, USA
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8 Oct 2026 · TrustList Editorial
Total funding reaches $35m. Rein says revenue has grown eightfold and its customer count fivefold since a January 2026 launch, with…
8 Oct 2026 · TrustList Editorial
Its $60 million Series A came in two parts, the first $25 million last November. The company says run-rate revenue passed $100 million in…
7 Oct 2026 · TrustList Editorial
The New York company closed the round ten months after its Series A and plans to add credit, lending and fund movement to its receivables…
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