The values that drive everything we do

We believe strong values create stronger outcomes. These three values are the cornerstones of Propellant's philosophy and ideology.

Client focus

Our clients are at the heart of everything we do. Their challenges shape our priorities, and their success defines ours.

Transparency

We believe financial markets thrive when data is transparent, accessible, and actionable.

Trustworthy

We build trust through integrity, deep market understanding, and a proven record of performance.
Behind our success

Our management team

Our management team combines in-depth regulatory and market knowledge, bringing clients the guidance, reliability, and actionable insight needed to make informed decisions.

Vincent Grandjean
Vincent Grandjean
Founder & CEO
Vincent is a veteran of financial data management and analytics Previously, he led Fixed Income e-trading projects, while working in product management at Santander, SocGen, Citi and UBS.
Dan Marcus
Dan Marcus
Advisor
Dan is CEO of consultancy MarcX Limited and plays a consultative role at Propellant. As CEO of Trad-X and ParFX, he was involved in the creation of the ICE Swap Rate and Term SONIA.
Alex Munn
Alex Munn
Chief Technology Officer
Alex is a technology leader with 20+years in financial markets, now driving innovation at Propellant. He specialises in trading technology, most recently serving in managing director roles at Man Group.
Charlie Gibson
Charlie Gibson
Head of Sales
Charlie brings with him intricate knowledge of bond trading and considerable technological expertise. He has built a strong network of relationships with Europe’s institutional trading community which will facilitate distribution of Propellant services into target markets.
Vidal Mehra
Vidal Mehra
Head of Quant Analytics
Vidal is an expert in fixed income trading, market analytics, quantitative modelling, and machine learning applications. He has held senior roles at Overbond, NatWest Markets, Deutsche Numis and lately product director at an AI start-up. He is responsible for expanding Propellant’s data-driven solutions.
Elizabeth Callaghan
Elizabeth Brooks Callaghan
Senior Advisor, Business & Strategy
Liz brings deep expertise in senior industry collaboration, regulatory strategy, and market structure. She held senior leadership roles at Etrading Software and the International Capital Market Association, helping design the EU’s bond transparency framework under MiFID II.
Caroline Wohleber
Caroline Wohleber
Senior Sales, Continental Europe
Caroline is a veteran sales leader with more than two decades of experience in fixed income, spanning across sell-side and buy-side sales, commercial relationship management and go-to-market strategy. She was previously Head of Sell-Side Sales at MTS within the Euronext Group.
Olga
Olga Savchuk
Customer Success Manager
Olga brings to the team a unique combination of financial analytics and client service skills. She has successfully managed relationship with sell-side regional banks whilst working at Bloomberg previously.
Join our team

Careers

At Propellant, every member has a voice, and daily interactions with our co-founders foster a collaborative and empowering culture. If you’re seeking a dynamic, less formal environment to apply your financial industry expertise, Propellant could be the perfect fit for you.

Commercial

Engineering

London / Full-time / Hybrid

Start your data journey for enhanced trading strategies

Take the next step toward timely and data-driven insights.

Get started