Monthly selection
Featured agencies — December 2025
Each month we move one place down every published Top 10, so a full year works through the whole list. This month is position 2. Featured status, editorial ranking and paid sponsorship are three separate things and are never traded against each other.
Rethink
Independent Canadian creative agency with offices in Vancouver, Toronto, Montreal and New York, working across ideas, strategy, design and communications.
Why choose them
Best fit: independent, brand-led creative at national scale. Rethink's own site lists offices in Vancouver, Toronto, Montreal and New York. The Drum reports its refusal to sell and its standing as a heavily awarded independent agency, which supports the portfolio and team components. Awards are a proxy for creative quality, not for commercial results.
Where they may not fit
Awards evidence is not outcome evidence, and we have verified neither. The agency does not publish a services list or pricing, so buyers needing search, retention or conversion work cannot tell from public material whether it is a fit.
- Headquarters
- Vancouver
- Founded
- 1999
- Team size
- Not published
- Minimum project
- Not published
- Score (of 100)
- 43
- Last verified
- September 8, 2026
Case studies
Coors Light Coors Lights Out
Client: Molson Coors
A campaign for the Coors Light brand listed among Rethink's featured work. No performance figures are published alongside it.
Primarily agency-provided · Source
IKEA u up?
Client: IKEA
An advertising campaign for IKEA featured in Rethink's own work showcase. No performance figures are published alongside it.
Primarily agency-provided · Source
FealGood Foundation Wall of Honor
Client: FealGood Foundation
A public-relations and design project for the FealGood Foundation listed in Rethink's work showcase. No performance figures are published alongside it.
Primarily agency-provided · Source
Selected from Top 10 Marketing and Branding Agencies in Canada (2026), researched by Thomas Christianson · last researched September 8, 2026
Core
Dublin marketing communications company organised across strategy, data, research, creative and media practices.
Why choose them
Best fit: Best for integrated strategy and media data. Core publishes the Outlook series of Irish advertising market forecasts, which named trade press including Adworld reports on each year. It operates multiple named practices spanning strategy, data, research, creative and media.
Where they may not fit
Its large integrated model offers less specialist agility than a boutique, and individual client outcomes are rarely published.
- Headquarters
- Dublin
- Founded
- 2005
- Team size
- Not published
- Minimum project
- Not published
- Score (of 100)
- 53
- Last verified
- Not yet verified
Case studies
The Diagnosis
Client: Breast Cancer Ireland
Core created a commercial within a wider campaign encouraging women to check their breasts regularly. No performance figures are published alongside it.
Primarily agency-provided · Source
Thank You
Client: Health Service Executive
Core developed a campaign encouraging people to stay home when unwell, framed around the common good. No performance figures are published alongside it.
Primarily agency-provided · Source
Selected from Top 10 Marketing and Branding Agencies in Ireland, researched by Thomas Christianson · last researched September 10, 2026
OOm
Singapore digital marketing agency helping brands with visibility across Google Search and AI-driven search channels.
Why choose them
Best fit: Best for certified search and SEM. OOm states it was founded in 2006 and holds Premier Google Partner and Meta Business Partner status, with a public team page and named leadership.
Where they may not fit
Ranking and return-on-investment claims are self-reported and not independently audited.
- Headquarters
- Singapore
- Founded
- 2006
- Team size
- Not published
- Minimum project
- Not published
- Score (of 100)
- 41
- Last verified
- September 10, 2026
Case studies
Carpetworkz
Client: Carpetworkz
OOm ran a search programme for the flooring supplier after weak visibility and low enquiries, optimising existing pages and adding new content. Agency-stated result: a 740% increase in leads over twelve months.
Primarily agency-provided · Source
JM Floral Creation
Client: JM Floral Creation
OOm combined search content work with paid search and social advertising for the florist. Agency-stated results: a 195% revenue increase and 7.69 times return on ad spend.
Primarily agency-provided · Source
Fresh Laundry
Client: Fresh Laundry
OOm combined search optimisation and paid search for the laundry service, including blog content and a targeted ads campaign. Agency-stated result: a 1,050% increase in enquiries.
Primarily agency-provided · Source
Selected from Top 10 Marketing and Branding Agencies in Singapore, researched by Thomas Christianson · last researched September 10, 2026
Honey Whale
South African SEO and AEO agency with offices in Cape Town and Johannesburg, working on ecommerce SEO, Shopify development and Google Ads.
Why choose them
Best fit: Best for Shopify builds and ecommerce SEO. Honey Whale names its founder and chief technology officer, states a 2018 founding and Shopify partner status, and publishes case studies naming South African brands.
Where they may not fit
Cumulative sales and order totals are self-reported and not verified by a third party.
- Headquarters
- Cape Town
- Founded
- 2018
- Team size
- 1-10
- Minimum project
- Not published
- Score (of 100)
- 42
- Last verified
- September 10, 2026
Case studies
Skin Reform
Client: Skin Reform
A search and paid media programme for an aesthetics clinic focused on treatment enquiries. Agency-stated results: monthly visitors up from about 300 to 3,100 and 2,209 total conversions.
Primarily agency-provided · Source
Buna Coffee
Client: Buna Coffee
A Shopify build with search and paid media support for a specialty coffee retailer that had outgrown its previous platform. Agency-stated results: keyword rankings up from 458 to 4,940 and sessions up 220%.
Primarily agency-provided · Source
Lashbox
Client: Lashbox
A migration to Shopify plus search and paid media for a professional lash-supplies retailer, delivered in phases. Agency-stated results: more than 37,700 orders fulfilled during the engagement.
Primarily agency-provided · Source
Selected from Top 10 Marketing and Branding Agencies in South Africa, researched by Thomas Christianson · last researched September 10, 2026
Conversion
Experimentation agency using A/B testing, UX research and personalisation to improve client websites.
Why choose them
Best fit: Best for experimentation and CRO. Conversion publishes experiment-level case studies naming Clarks, and its CEO and 2008 founding are named in its own press release.
Where they may not fit
Revenue claims are agency-published; no independent verification or pricing is available.
- Headquarters
- London
- Founded
- 2008
- Team size
- Not published
- Minimum project
- Not published
- Score (of 100)
- 47
- Last verified
- September 9, 2026
Case studies
Unicef donation experience
Client: Unicef
Conversion ran user testing informed by behavioural economics to improve Unicef's one-off donation experience. Agency-stated result: a 51% increase in average one-off donation size.
Primarily agency-provided · Source
Heifer International
Client: Heifer International
Conversion supported the non-profit's donor research and experimentation programme across fundraising and programme work. No performance figures are published alongside it.
Primarily agency-provided · Source
Gousto experimentation programme
Client: Gousto
Conversion launched a high-velocity experimentation programme for the recipe-box brand after in-house testing stalled, focusing on average order value. Agency-stated results: an 18x return on investment and a 20% increase in ancillary sales from one test.
Primarily agency-provided · Source
Selected from Top 10 Marketing and Branding Agencies in the United Kingdom, researched by Thomas Christianson · last researched September 9, 2026
Darkroom
Brand and growth agency working with consumer and direct-to-consumer businesses across brand identity, ecommerce and performance marketing.
Why choose them
Best fit: Best for consumer brand growth and commerce. Darkroom publishes starting prices per service, named client work including Adobe, Amazon and Everlane, and individual case studies such as Bero.
Where they may not fit
Published outcome figures are agency-reported; leadership is not named on the site.
- Headquarters
- Los Angeles
- Founded
- 2017
- Team size
- Not published
- Minimum project
- Not published
- Score (of 100)
- 45
- Last verified
- September 9, 2026
Case studies
Gorgie
Client: Gorgie
Darkroom built an Amazon advertising structure for the energy-drink brand, organised around branded defence, category terms and competitor targeting with a custom dashboard. Agency-stated results: page-one rank on 352 tracked keywords and total advertising cost of sale of 18% against a 29% forecast.
Primarily agency-provided · Source
Sauz
Client: Sauz
Darkroom built the pasta-sauce brand's identity, packaging and Shopify store, then expanded into paid media, Amazon and retention marketing as it entered national retail. Agency-stated results: 126% paid media revenue growth over Black Friday and a tenfold increase in Amazon sales velocity in six months.
Primarily agency-provided · Source
Everlane
Client: Everlane
Darkroom built the apparel brand's Amazon storefront, including brand story modules, enhanced content templates and category-specific listing images. Agency-stated results: a 126% Amazon revenue increase in three months across 87 product listings.
Primarily agency-provided · Source
Selected from Top 10 Marketing and Branding Agencies in the United States, researched by Thomas Christianson · last researched September 9, 2026