William Brennan - Email & Phone Number

Director, Chief of Staff at Calastone

William Brennan is based out of London, England, United Kingdom and works at Calastone as Director, Chief of Staff.

William Brennan's Contact Information

William Brennan's Work email

w*****@calast***.com

Valid

Latest update

September 18, 2025

Location

London, England, United Kingdom

William's current employer

Calastone

Description

Calastone

Website

calastone.com

HQ Location

London, Greater london, United kingdom

Number of employees

201-500

Industry

Financial Services

Latest update

May 1, 2024

Read about Calastone

Frequent questions about William Brennan

What company is William Brennan working for?

William Brennan works for Calastone.

What is William Brennan's function at Calastone?

William Brennan is Director, Chief of Staff at Calastone.

Where is William Brennan based?

William Brennan is based out of London, England, United Kingdom.

What is William Brennan's work email address?

William Brennan's professional email address is w*****@calast***.com

Who are William Brennan's co-workers?

William Brennan's colleagues are Paul Potter, Andrii Kosovets, Ken Tregidgo, Kevin Lee, James Donaldson, Kelly Pallister, Tarun Julka, Enrique Escuder, Owen Daly-Furlong, Stephanie Yeomans, Scott Greenwood, Rebecca Pitts, Samuel ACSI, Michael McNeil, Sunitha Parappurath, Louis Wright, Edward Illingworth, David Scott, David McGuinness, Yvonne Hurst, David Horgan, Sharn Rai, Lili Singh, Graham Thacker, Ross Fox, Steve Dublon, Cameron Sell, Rob Pokorny, Nicki Mollison, Becky Chiu, Tom Perrin, David Dominguez, Cristiano Moruzzo, Reynold Ha, Marsha Lee.

William's co-workers

Paul Potter

Product Owner (Transaction Services)

Director, Product Management

Owen Daly-Furlong

Lead Engineer

Stephanie Yeomans

Associate Team Lead, Business Analysis

Scott Greenwood

Group Finance Director

Rebecca Pitts

Sales Enablement Director

Samuel ACSI

Associate Director, Operations Manager

Michael McNeil

Product Director - Digital Investments

Sunitha Parappurath

QA Technical Team Lead

Louis Wright

Director, Sales and Relationship Management, Benelux, France & Northern Europe

Edward Illingworth

Operations Team Lead

David Scott

Environments Team Lead

David McGuinness

Product Director

Yvonne Hurst

Managing Director - Europe

David Horgan

Associate Director

Sharn Rai

Product Development (Director)

Lili Singh

People Business Partner, Director

Graham Thacker

QA Director

Ross Fox

Managing Director, Head of UK & Europe

Steve Dublon

Director, Sales & Relationship Management

Cameron Sell

Director - Head of Commercial Strategy and Execution (UK & Europe)

Rob Pokorny

Director of Engineering, DMI Fund Services

Nicki Mollison

Director, New Business

Becky Chiu

Director, Client Relationship Management

Tom Perrin

Head of Business Analysis

David Dominguez

Associate Director User Experience

Cristiano Moruzzo

Director - Head of Italy

Reynold Ha

Associate Director, Global Infrastructure

Marsha Lee

Director, CRM

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