Creative agency network
Leo
Publicis Groupe's creative network formed from Leo Burnett and Publicis Worldwide; the most effective network in the 2025 Effie Index.
Leo is Publicis Groupe's creative network, launched in January 2025 by uniting Leo Burnett and Publicis Worldwide (Publicis Conseil kept its own name), with 15,000 people in 90 countries at launch and co-led at launch by Marco Venturelli and Agathe Bousquet. Former offices took the Leo name, such as Leo Chicago. It was ranked the most effective agency network in the 2025 Effie Index.
Standing in the Report's landscape
No. 4 in Global agency networks, 2026
5 points: first agency network in the 2025 Effie Index; placed ahead of the other 5-point networks by the Effie tie-break.
See the list and how it was made
The rankings behind it
A place in a list is read from published rankings and award tables by a points rule set out with the list; nobody pays to be on it. Size and fame are not fit: check what this agency does against your brief.
Where it shines
- First among agency networks in the 2025 Effie Index, from results across several markets and categories.
- One of the widest footprints: 90 countries at launch.
Check before signing
- A new brand formed from two networks in 2025: ask which former agency your local office was, and who leads it now.
- Owned by Publicis Groupe, which also owns other creative networks: ask about conflicts.
What it offers
- Markets
- Global
How it is classified
- Category
- CreativeFull-service
Something is listed only when it can be checked. A connection we could not confirm is left off, and Find your stack then credits a public API at half weight.
Our six checks
- Ownership is public: met
- Services are published: not known yet
- Offices are listed: not known yet
- Privacy is published: not known yet
- Effectiveness is evidenced: met
- Work is shown: not known yet
- Ownership is publicMet
It names its owner (the holding group) or states that it is independent, and names its leadership.
Publicis Groupe's launch release names the owner and the network's co-leaders.
- Services are publishedNot assessed
A services or capabilities page says what it does.
Its services page was not checked for this listing.
- Offices are listedNot assessed
It publishes where it operates: its offices or markets.
The launch release gives 90 countries; its own office list was not checked.
- Privacy is publishedNot assessed
Its site has a privacy notice, and a code of conduct where one was seen.
Its privacy notice was not checked for this listing.
- Effectiveness is evidencedMet
An independent effectiveness ranking or award from 2023 to 2026 names it (the Effie Index, the IPA Effectiveness Awards, the WARC Effective 100).
Ranked the most effective agency network in the 2025 Effie Index.
- Work is shownNot assessed
It publishes case studies or named client work.
Its own case-study pages were not checked for this listing.
Not assessed is not a failure — it means we have not checked yet. Methodology
Evidence
Sources
- Publicis Groupe launches Leo, a new creative constellation uniting Publicis Worldwide and Leo BurnettTo re-check
- Publicis Groupe unites Leo Burnett and Publicis Worldwide under new Leo networkTo re-check
- Effie: most effective marketers, 2025 Global IndexTo re-check
- 2025 Global Effie Index Rankings AnnouncedTo re-check
Every attribute
The same attributes, measured by the same rules, for every listing. "Not recorded" means we have not checked yet — never a "no". Spot something missing or wrong? Suggest an edit.
Identity
| Type | Agency | |
|---|---|---|
| Categories | Creative, Full-service | |
| Founded | 2025 | |
| Headquarters | Not recorded | |
| Ownership | Part of a larger group | |
| Parent company | Publicis Groupe | |
| Added by | IMC Report team |
Fit
| Objectives | Not recorded | |
|---|---|---|
| Disciplines | Not recorded | |
| Number of disciplines | Not recorded | |
| Suits | None | |
| Company sizes | Not recorded | |
| Industries | Not recorded | |
| Markets | Global | |
| Reach | 100/100 | |
| Support languages | Not recorded |
Trust
The community
| "Looks right" confirmations | 0 | |
|---|---|---|
| Community experiences | 0 |
Experiences and ratings
Share your experienceNo experiences with Leo yet. Used it? Yours could be the first.
Experiences are read by a moderator before they appear, are shown beside the facts, and never feed a score or a ranking. You may not share an experience of a product you work for, sell, compete with or are paid to promote.
Alternatives