Gillian Crossan

Energizer
DISC Type : I

Global Technology, Media and Telecommunications Leader and Lead Client Service Partner at Deloitte

Seattle, Washington, United States

Overview

Gillian is the Global Industry Leader for Technology, Media, and Telecom at Deloitte, where she has worked for over 30 years in both the UK and US. She specializes in industry convergence driven by technology and serves as the Lead Client Service Partner for one of the firms largest global tech clients.

Passionate about mentorship, Gillian actively supports female executives for corporate board service and leads inclusion programs at Deloitte. She was the first in her family to attend university and values creating opportunities for others to succeed regardless of their background. She holds a BA (Hons) from the University of Strathclyde.

She was recognized by the Puget Sound Business Journal as a 2024 Woman of Influence.

Personality Overview

Informal

Relationship Oriented

Big Picture Person

They are naturally enthusiastic, so take their promise with a pinch of salt.  They are not always early adopters but can be pursuaded by leveraging strong relationships. They excel at seeing the bigger picture, and the long-term impact of their decisions.

Topics They Care About

Women in Leadership
Actively mentors young women leaders, leads inclusion programs like "Onboarding Women" at Deloitte, and works to prepare female client executives for corporate board service.
Agentic AI
Is scheduled to give a talk at Mobile World Congress 2026 on the human element of agentic AI and building a workforce that integrates humans and agents.
Industry Convergence
Her career across energy, healthcare, and consumer products has prepared her for the increasing influence of technology across all industry sectors, a topic she frequently addresses.

Media Appearances

Faces of TMT – Meet Gillian Crossan. Featured in Deloitte

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Gillian Crossan | Global Technology, Media & Telecommunications Industry Leader. Featured in Deloitte

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Work History

5-2025
Global Technology, Media and Telecommunications Leader and Lead Client Service Partner at Deloitte
6-2021 - 5-2025
Lead Client Service Partner and Global Technology Sector Leader at Deloitte
7-2016 - 6-2021
Lead Client Service Partner and Global People and Purpose Leader for Tech, Media and Telco Industry at Deloitte
8-2012 - 7-2016
Client Relationship Executive Director at Deloitte
2-2008 - 8-2012
Strategic Relationship Senior Manager at Deloitte

Education

1988 - 1992
BA (Hons) from University of Strathclyde

More Information

Social Presence :

Prographics :

Exp : 33 Location : Seattle, Washington, United States Job Level : Senior Designation : Global Technology, Media and Telecommunications Leader and Lead Client Service Partner at Deloitte
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Insights For Selling To Gillian

During A Call Or A Meeting

DO's

  • Share some stories about how you you have helped people in similar positions succeed
  • Be friendly and entertaining in your conversation
  • Use phrases like ‘people will love’, ‘massive impact’ etc.

DONT's

  • Avoid ifs and buts, don’t talk too much about the risks etc.
  • Don’t be excessively objective, be a storyteller
  • Avoid overloading them with too much detail

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Gillian is

  • Relationship and trust can be vital with them, sometimes more than anything else.
  • Will you ever get a clear answer from Gillian

  • They are unlikely to say no directly, you have to make that decision yourself.

Insights For Deal Planning

    How fast (or slow) will Gillian move?

  • They are not the fastest decision makers, their friendly approach can give false positive signals.
  • Can Gillian take some risk or not?

  • They can take certain risks that are unlikely to have personal consequences.

You And Gillian

Personality Compatibility


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