Sparteo hires Louis-Etienne Balleydier as Chief Legal Officer

Experienced executive will support the next phase of Sparteo’s growth

Sparteo, the suite of data-driven advertising technologies powered by AI, has appointed Louis-Etienne Balleydier as its new Chief Legal Officer.

Formerly Group General Counsel at Mirakl, Balleydier joins Sparteo with the mission of scaling and enhancing Sparteo’s legal operations in France and internationally to support its next phase of growth. He will also be joining the adtech firm’s Executive Committee.

Louis-Etienne brings extensive experience in scale-ups, tech, and innovation to the role. Prior to joining Sparteo, he held several senior legal positions, including  Group General Counsel at Mirakl, Senior Legal Counsel at SAP. He has also worked as a specialist intellectual property attorney.

His arrival comes at a pivotal time for Sparteo, as the company experiences rapid growth –  including an 80% increase in revenues in 2024 – and accelerates its international expansion.

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“We are thrilled to welcome Louis-Etienne to Sparteo. His unique experience, especially in growing the legal department at Mirakl during a phase of intense expansion, will be invaluable to us,” says Benjamin Tolman, co-founder and CEO of Sparteo. “Following the arrival of Alexandra Diez as Chief People Officer, we are assembling an exceptional C-level team to lead Sparteo into its next growth phase.”

Louis-Etienne Balleydier adds: “The adtech sector is accelerating rapidly, and Sparteo aims to become a global leader in this industry. I’m excited to step in as Chief Legal Officer to build and scale the legal team in France and abroad, and to support the group’s strong growth trajectory.”

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 Sparteo is the one-stop solution for publishers seeking to regain control of their websites, audiences, data, and revenue. The company offers a comprehensive technology suite with five tools: Actirise (Display), Meetscale (SSP), Viously (Video), FastCMP (CMP), and Voxeus (Audio). Leading French media groups—including Figaro, Reworld Media, and Prisma Media—rely on these solutions, alongside digital-first companies like Futura and Groupe Marmeladz. In the UK, prominent media outlets such as The Race, Nigella and Snack Media have partnered with Sparteo. Through substantial investments in AI and infrastructure, Sparteo’s technologies enable significantly higher revenues compared to previously used solutions—on average, +30% more. Sparteo has more than 100 employees across four offices (Lille, Paris, Berlin, and London) and was founded in 2018.

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