Speaker Photo

Marion Leslie

Managing Director

Marion is the Managing Director of Thomson Reuters Enterprise business, delivering award-winning market data, platforms and services to the global financial markets. Throughout her 23 years in the financial services sector, Marion has specialised in leading global businesses and operations at scale, with a strong emphasis on data and technology.

Marion’s career highlights include transforming and growing Thomson Reuters global enterprise business, creating a start-up operation in Bangalore, building the Thomson Reuters office from scratch to 2000 employees and running global technology and data teams at scale, supported by 1600 experts in 26 countries worldwide. 

Regularly representing Thomson Reuters externally, Marion contributes as a speaker on topics such as data and technology, risk and regulation, diversity and leadership.

In 2017, Marion was named in the Cranfield University Female FTSE 100 Women to Watch Board Report and in 2014 was the winner of the Award for Achievement at the Women in Banking and Finance Awards.

Marion is Chair of the London Women’s Forum, an exclusive network for senior women working within the financial services sector in London. She is non-executive director for the UK Hydrographic Office (a Government Trading Fund) and a trustee for Prostate Cancer UK. 

 

Speaking Opportunities

If you are interested in getting involved and speaking at our events or on our webinars, please get in touch with us! Email speakers@datamanagementreview.com or call us on +44 (0)20 8090 2055 or +1 646 290 7488.

Attendee Testimonials

The event was a success for us. It delivered a high caliber of speakers and delegates, the subject matter was engaging and the event organization was first class.

Jeremy Asprey
VP Global Head of Marketing GoldenSource

An informative event with a diverse group of presenters and topics each relevant to my role somehow. This gave me and my colleagues some ideas on how to development our data governance framework further and also emphasised the importance of stakeholder engagement which outlined difficulties we all experience. All in all, a very worthwhile event

Rosie Bridges
Manager, Data Governance, FIL Investment Management

The Summit was really well organised, the venue was pleasant and in a good location, and the overall day was very varied and interesting. I’ll definitely be keen to attend future events of this nature.

Richard Cooper
CDO Office, Service Delivery and Operations, Santander UK Plc

I wanted to congratulate all the organization for the recent DMS in London, it was really well organized, very interesting and participative.

Clara Garrido Lobo
Data Governance and Control Manager, Santander

I’ve attended the annual DMS event for many years and have always found the panels and round tables to always be topical and engaging, this year was without exception especially with the new venue. The various breaks and evening event allows for some key networking with my peers and allows us to share experiences, updates and views. Well done A- Team another great conference

Rickie Glasgow
VP Reference Data Services, Deutsche Bank

The Data Management Summit is not only an informative and thought provoking day, it is a bi-annual date in the calendar to meet peers, colleagues, vendors and leaders across the data industry. A-Team who specialise in Data, over a number of years, has built up a real community of data people.

Anthony Greene
Consultant, UBS

The Data Management Summit provided an excellent opportunity to hear about different initiatives underway in the market, and the experiences of practitioners across a range of industries, both through presentations and individual networking conversations. I have taken away a number of key points that will enable me to make change recommendations in my company, substantiated by the experiences of others that were shared at the Summit.

Derek Guildford
Analytics: BI Solutions, Investec

I always make sure to attend the twice-yearly Data Management Summit as I find it brings together the right industry thought leaders, and always has forward thinking and thought provoking sessions. The speakers bring real experience, not blue sky thinking, and are very willing to share their experiences - good and bad! It is a very useful event to attend.

Sally Hinds
Managing Director & Co-Founder, DMCS Ltd

I thought the session was very informative and well organized. The topics were pertinent to my area of responsibility and influence and the sessions where hosted and contributed by very knowledgeable staff. Thank you for inviting me.

Sam Pandya
Director, Chief Data Office - Data Quality, Deutsche Bank

Personally I found the event to be a well organised event and content was informative.

Elena Smith
Market Data Analyst, HSBC

DMS is always a well organised industry conference providing useful insight into the market while bringing industry professionals together to address hot topics.

Fatma Aytemur
Data Execution Strategy, Nomura

The Data Management Summit is a great platform which brings together industry thought leaders from within and outside of the financial industry to present and discuss the upcoming challenges.

In my role I find it very important to stay abreast of these developments in the regulatory, governance and data management space. I found the data management summit in London very useful as it gave an opportunity to listen-to and interact with peers and vendors from the industry.

Prashant Nakil
Sr. Project Manager Client Reference Data, Credit Suisse

Excellent event yesterday, it was great to be back there. Top job as well from the team organizing it, congrats. We definitely look for next year to be a more active participant and we really appreciate the effort to have a dedicated Buy-Side stream - we saw the room was full, this was definitely something we are happy to see next time, and to be more engaged with.

Olivier Mathurin
AIM Software

We really enjoyed the event (as always) and were really pleased with the turnout for it. In terms of raising our new brand awareness, I felt it went really well.

Rebecca Palmer, Product Proposition Manager
ICE Data Services

I attended the DMS yesterday for the first time and I found it very useful and I look forward to attending in the future so thank you for that.

Chris Chattaway
Data Quality Management - Risk Management Department Sumitomo Mitsui Banking Corporation Europe Limited

Thanks to all our Sponsors

Become a sponsor

Want to sponsor DMS to make real connections with senior data management decision makers?

We offer a comprehensive selection of sponsorship opportunities which provide a superb platform for you to raise your corporate profile, be seen as thought leaders, conduct highly valuable face-to-face networking, and generate real sales leads.

Find out how you can sponsor or become an exhibitor, or to ask a question, contact:

Jo Webb
Tel: +44 (0)7468 560 555
Email: sales@datamanagementreview.com

Request our media pack

Got a question?
Get in touch

Become a sponsor
Jo Webb

+44 (0)7468 560 555
Email: sales@datamanagementreview.com

Interested in speaking?
Lorna Van Zyl
+44 (0)20 7078 4875
speakers@datamanagementreview.com

Bring your team
Ron Wilbraham

+44 (0)20 8090 2055
ron@a-teamgroup.com

  • UK: +44 (0)20 8090 2055

  • US: +1 646 290 7488

The Data Management Summit (DMS) London is organised by A-Team Group, producers of www.datamanagementreview.com