Case Study: Antin Infrastructure Partners

Backed by BNP Paribas Investment Partners, Antin Infrastructure Partners was founded in 2007 by Alain Rauscher and Mark Crosbie.

In 2012, the team completed the buy out of BNP‘s stake, enabling the firm to become solely owned by its management. They‘ve since grown into a leading value-add infrastructure private equity firm, comprised of over 40 investment professionals across London, Paris and New York, with AUM exceeding $12B over their 4 fund vehicles.

In 2021, Antin’s management listed the firm on the Euronext stock exchange with a market capitalization of EUR 4.1bn.


Established in 1995, Pulsant is a leading regionally focused data centre platform in the UK, providing mission critical IT infrastructure through a core focus on colocation, private cloud infrastructure and network connectivity.

Origis Energy is a leading renewable energy platform in the United States with a growing pipeline of solar and storage projects. The company was founded in 2008 and is led by CEO & President Guy Vanderhaegen. Headquartered in Miami, Origis has regional offices in Austin and San Diego.


Over the last decade, we have partnered to build out their London and Paris teams with over 30 appointments at Partner, Director and Associate levels across it Investment, Asset Management and Investor Relation team.

Our hires for Antin have included the retained project to build their Americas IR/Fundraising team from scratch (four Director searches), the Asia IR/Fundraising team from scratch, the Next Generation Infra Investment team from scratch, and the Mid Cap Infrastructure Investment team from scratch.

In 2019, we were also retained on their first hires in the US, successfully delivering on 3 appointments including Partner. Mandates concluded include candidates from Arclight, The Carlyle Group, Blackrock, Goldman Sachs, JPMorgan, Rothschild & Co, RBC Capital Markets and UBS.


In July 2020 Antin successfully closed its 4th fund, the largest to date, raising €6.5bn to invest in infrastructure opportunities.

The firm has a track record of improving financial performance, service quality and ESG aspects of their portfolio companies.

Listed on the Euronext stock exchange in 2021, Antin has €20.3bn AUM and a market capitalization of €4.81bn* (*as of 26.01.2022).

“Over the past 10 years, we’ve had a strong partnership with One Search who helped us attract high-caliber and diverse talents in our investment teams and our investor relations team in Europe, North America and Asia. Their impact has been very significant, and we look forward to continuing this fruitful relationship for our future development plans.”

Melanie Biessy
Senior Partner and Chief Operating Officer
Antin Infrastructure Partners