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Strategy and Creation That Drive
Tangible Results

Over and above the visible results, our projects are successful because of the time they take to conduct the change. So whether you're looking for a change in image, diversification or performance, take a look at some inspiring examples.

All case studies

Beyond a Union: Becoming the Brand Players Talk About in the Locker Room

Beyond a Union: Becoming the Brand Players Talk About in the Locker Room

Strategy & Brand Consulting
Content & Influence

Revamp of the national basketball players' union

September 29, 2025
SNB (Basketball Players’ Union)
Beyond a Union: Becoming the Brand Players Talk About in the Locker Room
Transforming French Basketball Leagues into Cultural Icons

Transforming French Basketball Leagues into Cultural Icons

Content & Influence
Strategy & Brand Consulting
Technology & Digital

France is a powerhouse for basketball talent. After Canada, it’s the country that sends the most players to the NBA. Yet, its national leagues — Betclic Élite (formerly Pro A/Jeep Elite) and Pro B — don’t get the recognition they deserve.

June 17, 2025
LNB (Ligue Nationale de Basket)
Transforming French Basketball Leagues into Cultural Icons
Managing change as part of a major rebranding project (AccorInvest becomes Essendi)

Managing change as part of a major rebranding project (AccorInvest becomes Essendi)

Strategy & Brand Consulting
Content & Influence

Essendi (formerly AccorInvest) reinvents itself with ELEF: new brand image, content, and roadshows to engage 25,000 employees.

April 1, 2025
Essendi (ex-AccorInvest)
Managing change as part of a major rebranding project (AccorInvest becomes Essendi)
Creating the reference brand for marketing and society content on social media

Creating the reference brand for marketing and society content on social media

Content & Influence
Strategy & Brand Consulting
Technology & Digital

Mythoslogos explores modern myths through unique formats, crafting immersive worlds and content to decode today's consumerist imagination.

September 1, 2024
Mythoslogos
Creating the reference brand for marketing and society content on social media
Louis XIII
Organizing the graphic assets of a luxury brand

Organizing the graphic assets of a luxury brand

Content & Influence
Strategy & Brand Consulting
Technology & Digital

Louis XIII tasked ELEF to audit 100+ media and unify its brand codes, ensuring consistent 360° communication across all touchpoints.

March 1, 2022
Louis XIII
Organizing the graphic assets of a luxury brand
Creating a breakthrough innovation in cognac

Creating a breakthrough innovation in cognac

Content & Influence
Strategy & Brand Consulting
Technology & Digital

To renew its audience, Louis XIII launched The Drop: a bold new cognac format and brand to reach new targets and embody timeless luxury.

March 1, 2022
Louis XIII
Creating a breakthrough innovation in cognac
ATTAQUE - DEFENSE / The song of French basketball culture

ATTAQUE - DEFENSE / The song of French basketball culture

Content & Influence
Strategy & Brand Consulting

In order to establish French basketball within a cultural sphere that transcends sport, we came up with the idea of creating a unique track that brings together three artists from three different worlds.

LNB (French National Basketball League)
ATTAQUE - DEFENSE / The song of French basketball culture
Creating the Visual Identity for the 2025 Basketball Supercoupe

Creating the Visual Identity for the 2025 Basketball Supercoupe

The LNB is making history: for the very first time, the Basketball Supercup will be played on the legendary clay court of Roland-Garros. A visual clash, a symbolic gesture, and a groundbreaking encounter between two icons of French sport.

LNB (French National Basketball League)
Creating the Visual Identity for the 2025 Basketball Supercoupe
C’est nous le basket français

C’est nous le basket français

A flagship film and campaign to reveal the identity of France’s national basketball leagues

LNB (Ligue Nationale de Basket)
C’est nous le basket français

Awards et
recognitions

ELEF's innovative approach to strategy, content, and technology has been recognized by top industry organizations, highlighting our impact, expertise, and forward-thinking methodology.

What our clients say

( 5/01 ) “I’ve been working with Mathieu for over six years, and he’s far more than a consultant. He operates as a shadow member of our governance, consistently helping us drive forward our most ambitious ideas—even in highly complex environments. His strength lies in turning vision into tangible impact without ever compromising the original power of the idea. He’s a strategic and creative ally, essential when it comes to leading deep brand transformations."
Virginie Duval
Virginie Duval
Communication Director (Public Senat, France Galop, LNB)
( 1/15 ) "ELEF is more than a creative partner — they are true friends of the House. Their commitment matches their creativity, and together we brought to life bold expressions like The Drop and the reinvention of our brand guidelines. With ELEF, every idea becomes a statement."
Anne-Laure Pressat
Anne-Laure Pressat
( 9/25 ) Working with ELEF was like redefining our identity from the inside out. They helped us turn a union into a movement, something that speaks to every player, in every locker room. What impressed me most was their ability to bring everyone around the table: players, staff, and partners and to project the Union into an international dimension that truly reflects today’s game. Together, we built a brand that finally feels like us: ambitious, united, and proud of what we stand for.
Julie Campassens
Julie Campassens
Directrice