11 Oct 2026 · TrustList Editorial
Contractor malware puts 8.7 million Daiichi Kosho records at risk
The Big Echo operator says the data sat on one Nippon Columbia Group employee PC. No leak or misuse is confirmed, and it is reviewing how…
15 of 47 advertising companies ranked on evidence in the Q4 2026 edition.
Between them, the 47 best-ranked of these 48 advertising companies cover creative (23), advertising (12), retail (10) and branding (9). They also list work in London, Europe and Nice. 47 of them have written a profile you can read before you get in touch.
TrustList ranking
Q4 2026 edition
15 of 47 advertising companies 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.

Advertising & Marketing · Advertising · Internet
Eprofessional is a digital marketing, technology and strategy consultancy based in Hamburg, Germany.
Why #1: Founded 1999 · Team of 150+, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Creative · Advertising · front
Adams & Knight is an integrated marketing agency in Connecticut that has served local and national clients since 1988.
Why #2: Founded 1988, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Digital Marketing · Creative · Advertising · Also in Wilmington and Charleston
Ellev Advertising Agency is a full-service advertising and marketing agency serving businesses in the Carolinas.
Why #3: Founded 1995, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Why #4: In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.

Lisbon communications agency handling public relations, events, influencer marketing and social media for consumer brands
Why #5: In business 26+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Consumer Products & Services · Business Services · Content Marketing · Also in Madrid and Barcelona
Elogia is an agency in Spain that describes itself as an operator of digital business rather than a conventional agency.
Why #6: In business 25+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

Advertising & Marketing · Business Services · Creative
Inkpot Graphics, also trading as Inkpot Advertising Agency LLC, is a branding and advertising company in Dubai, United Arab Emirates.
Why #7: Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Digital Marketing · Real Estate · Creative · Also in Bangkok and Asia
Blue Orange Asia is a creative agency in Bangkok, Thailand, handling branding, advertising and digital marketing.
Why #8: In business 20+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Avando PR is a public relations agency in Poland. It started in 2008 with a focus on fashionable products and now plans strategic communication for businesses, particularly…
Why #9: Founded 2008, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Digital Marketing · Creative · eCommerce
Boyd Digital is a search engine optimisation agency working from Glasgow city centre, Scotland.
Why #10 (shared): Founded 2010, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Business Services · Real Estate · Creative
Conure Media, trading as Conure, is a web operations company for organisations that depend on WordPress.
Why #10 (shared): Founded 2010, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Advertising
Creative Market is an independent PR and communication agency in Bucharest that concentrates on fashion, beauty and lifestyle brands.
Why #12: In business 14+ years · Team of 12+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Series · Also in Nepal
Creato is an events and brand activation agency whose portfolio centres on Bangladesh, with some work abroad.
Why #13: Founded 2015, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Consumer Products & Services · Business Services · Advertising · Also in Holborn and London
Congo Social is a social media management and marketing agency in London with more than a decade of experience growing brands.
Why #14 (shared): In business 10+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.

Creative · Also in Los Angeles
Bohemi and Chic, written as Bohemi+Chic, is a small creative studio in Los Angeles, California.
Why #14 (shared): In business 10+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Also in India
ABND is a brand consultancy in Mumbai that works on strategy, visual design and internal culture.

Creative · Branding · Video
Andrew Rea Design is an Orange County studio offering graphic design, branding and marketing consulting.
On record: Boutique

Advertising · Production
Advertising and integrated communications agency handling event production, graphic design, marketing and social media campaigns

Advertising & Marketing · Video · Production
Biscuit Bunker Ltd is a video production company in London that plans and delivers a wide range of video content for brands and agencies.

Advertising · simple · Full-stack · Also in Europe
Blazon Agency calls itself a product launch agency, with offices in London and New York and work carried out for clients worldwide.

Creative · simple · Series · Also in Belfast and Hanoi
Blick Shared Studios is a non-profit provider of workspace for creative people in Belfast, Northern Ireland.
Hospitality & Leisure · Digital Marketing · Real Estate · Also in India
Bluepixel media and entertainment pvt ltd is an Indian company mixing digital PR with media production and IT services.

Creative · Advertising · eCommerce
Brandslane is a marketing agency that works only with e-commerce brands.

Creative · Video · Production · Also in Marylebone and Nice
Broadley Studio runs two soundproofed broadcast studios in central London that companies, broadcasters and producers can hire.
For vendors
The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.
Not on TrustList yet? Add your company or claim its listing, free.
Free
Paid · always labelled
Every other way we rank advertising companies, by what they do and where they are.
The newest guides and analysis from TrustList Insights.
11 Oct 2026 · TrustList Editorial
The Big Echo operator says the data sat on one Nippon Columbia Group employee PC. No leak or misuse is confirmed, and it is reviewing how…
11 Oct 2026 · TrustList Editorial
Advisory AA26-281A names eight CVEs, SoftEther persistence and Exchange password spraying, while the FBI seized seven domains behind the…
11 Oct 2026 · TrustList Editorial
XAnge and W23 Global join Point Nine, Creandum, b2venture and Square One. Procuros connects suppliers and retailers to each other's ERPs in…
Jump to another ranked category.
Everything here links back to the same verified catalogue. Pick your next stop.