Luxembourg Stock Exchange (LuxSE) headquarters in Luxembourg-Ville;
Credit: LuxSE
On Tuesday 21 January 2026, the Luxembourg Stock Exchange (LuxSE) announced it had acquired the ESG data analytics unit from Luxembourg-based fintech Tetrao International.
Tetrao specialise in the extraction of large amounts of sustainable bond data points from a wide range of sources using AI-powered technology. LuxSE initially acquired a minority stake in Tetrao in January 2021 and had relied on the start-up’s data collection services to accelerate the development of its market-leading sustainable bond data offering since then.
As part of the acquisition, Tetrao’s ESG (Environmental - Social – Governance) data analytics team will join the LuxSE Group and continue to extract and collect sustainable bond data points for the Luxembourg Green Exchange (LGX), using specialised knowledge, technology and proprietary tools developed by Tetrao. LuxSE confirmed that Tetrao will remain a key technology provider for the group.
“This acquisition is a strategic move for the Luxembourg Stock Exchange and demonstrates our unwavering commitment to providing structured and meaningful sustainable bond data. Investors need access to reliable data to make informed investment decisions, and given our long-term strategy in this field, we consider it important to have full oversight of the data collection process and strategy. We have successfully worked with Tetrao for a number of years and see great potential in its technology and expertise,” commented Julie Becker, CEO of LuxSE.
Pierre Schoonbrodt, CFO of LuxSE, served as board member of Tetrao International. He said: “We look forward to bringing Tetrao’s ESG data analytics unit into the LuxSE Group. The team offers unique expertise in the field of data collection and has a deep understanding of our processes and business needs. Thanks to the advanced technological solution which was developed for our specific area of activity, this acquisition will strengthen our data services and open opportunities to expand into new areas.”
Tetrao was created by Christian Gillot in Luxembourg in 2014 and started its commercialisation in 2017. In 2019, Tetrao launched an R&D project for the investment fund industry that collected daily documentation and relevant metadata on 85,000 instruments of the fund industry. The start-up then went on to develop specialised services in the field of sustainability data collection. Since 2020, Tetrao has fed LuxSE’s sustainable bond database, the LGX DataHub, with multiple datapoints on bonds identified by LuxSE’s sustainable finance expert team.
“We are grateful for the trust that LuxSE has placed in Tetrao over the years and we are proud of the robust and efficient data collection processes we have developed and operated for the LGX DataHub. Through this partnership, we have refined our ability to collaborate with and deliver seamlessly for corporate stakeholders. As artificial intelligence continues to progress rapidly in capabilities, our proven track record positions us well to deliver tangible value to innovative clients seeking to extract greater value from data and future-proof their businesses,” stated Christian Gillot, CEO and Founder of Tetrao.
LuxSE said the transaction is expected to close by the end of February 2026, subject to obtaining the required regulatory approvals.
