About Us

Who we are

What we do

In a world of constant change, financial institutions must rely on innovation to adapt steadily to new trading opportunities, new regulation or new markets. Our mission is to make sure that our clients cope with change with a short time to market. Horizon Software focuses on all trading businesses related to listed markets such as delta-one, structured products and options market making & trading. Thanks to the sophisticated algorithmic capabilities, our clients create, test and implement automated trading strategies within incredibly short timescales: they trade the way they really want, this is why – Trade your Way – is our philosophy.
welcome to horizon


We provide a new generation of algo-trading technologies for a new trading experience and we nurture a
more transparent, flexible and open trading environment

business project


Anticipate the trading market dynamics
Deliver innovative technology
Develop advanced Algorithmic trading
Focus on high-quality services


TEAM PLAYER- We are on the same boat; each of us behaves as a team player
COMMITTED- We are committed to our activities because we can be proud of what we achieve
SHARP- We are able to make sharp decisions
RESOURCEFUL- We overcome dificulties by finding innovative solutions because we are resourceful
TRUSTWORTHY- We build trust-based relationships because we deserve them



We are all on the same boat; each of us behaves as a team player.


We are committed to our activities because we can be proud of what we achieve.


We are able to make sharp decisions.


We overcome difficulties by finding innovative solutions because we are resourceful.


We build trust-based relationships, because we deserve them.

Our Partners

Horizon has been partnering with consulting and technology providers as well as data providers to deliver comprehensive solutions to the Capital Markets industry, to maintain efficient support services to our clients worldwide, and to contribute to sustainable development.

Business enablers

Business enablers

Talent & ESG

Talent & ECG



Years of customer satisfation


Satisfied clients


Happy employees


Happy Employees
Meet our management team


We believe in building trustworthy relationships with our clients the same way we do with our people. We are team players. We are proud of what we achieve and are committed to our activities to deliver innovative solutions, by being resourceful and our capacity to make sharp decisions.

Sylvain Thieullent Sylvain Thieullent
Sylvain Thieullent

Sylvain Thieullent leads the strategic direction of the company, ensuring clients trade their way with Horizon’s sophisticated electronic trading solutions. Sylvain has extensive experience at Horizon Software through his previous roles as APAC Director and EMEA Head of Electronic Trading.

Guillaume Poitevin Guillaume Poitevin
Guillaume Poitevin

Guillaume has extensive experience in Capital Markets and Investment Management as he previously held senior sales positions at global financial software vendors. Guillaume oversees all aspects of business development at Horizon Software including setting its strategic sales direction and developing Horizon’s market penetration.

Charles Bertrand Charles Bertrand
Charles Bertrand

Charles joined Horizon after the 2018 MBO with the objective to foster the company’s profitable growth. He has more than 15 successful years of experience in management consulting at Capgemini and previously held various Finance positions at Constellium and Alstom. He recently drove the development and transformation of a B2C retailer dedicated to seniors.

Vincent Dumontoy Vincent Dumontoy
Vincent Dumontoy

Vincent is responsible for product strategy, solutions delivery and services operations globally. Vincent has over 15 years of experience in Equity Derivatives and Cross Asset Trading at Morgan Stanley in London, Barclays Investment Bank in London, and Société Générale CIB in Paris and New-York.

Benoit Deckmyn Benoit Deckmyn
Benoit Deckmyn

Benoit, after a previous experience in the Telecom industry, spent seven years working for the equity derivatives department of Société Générale CIB, where he was in charge of market data, middleware and electronic trading latency optimization projects. He joined Horizon working on extending Horizon’s exchange and broker coverage and increased the quality of connectivity solutions.

Helene Riou Helene Riou
Helene Riou

Hélène joined Horizon in 2019 in the new role of HR Director, to support the growth dynamic of the group. Graduated in HR, she has over 15 years of experience as HR Manager in France and Hong Kong, working with international groups in industries facing digital transformation, including printing, publishing, textile and IT.

Emmanuel Faure Emmanuel Faure
Emmanuel Faure

Emmanuel served in various Management positions for 20 years in the financial industry in Asia such as Fimat, a global brokerage organization and part of Société General group in Japan and Hong Kong, Newedge, HSBC Futures, Jefferies HK, and Ned Davis Research  also working several years as Independent Director at Malaysia.

Francis Leclerc Francis Leclerc
Francis Leclerc

Francis manages the Horizon Software development in the US and Canada after opening the company’s new office in Montréal in 2018. Francis’ new position sees him returning to Horizon, where he worked for eight years from 2004 to 2013. He spent the last five years at Société Générale, where he developed Equity Finance and Prime Brokerage applications as the Development Team Lead.

Damien Jenner Damien Jenner
Damien Jenner
Head of Sales EMEA

Damien joined Horizon Software in January 2018 after 15 years of experience as a Senior Quant in Tier one banks across the globe (HSBC, CBA, Commerzbank, Natixis). Today, Damien heads up the EMEA business development with a particular focus on the MENA region. Passionate about sailing, in 2021 Damien will join an international race to cross the Atlantic as a solo Sailor

Francois-Xavier Detourniere Francois-Xavier Detourniere
Francois-Xavier Detourniere
Global Head of Product Management

Francois-Xavier joined Horizon in 2002 as a trainee Software Engineer. After 16 years working in software development on Horizon solutions, and progressing to became one of the company’s CTOs, he now takes on a new challenge and will lead the team of Horizon Product Owners. He has been based in Asia since 2010 and currently oversees Horizon operations in ASEAN from Bangkok after five years performing this role out of the Horizon Hong-Kong office.