After 30+ Years, Mary’s Been There, Done That at Some of the World’s Largest Corporations

The Biography of an Executive and Professional Coach

Mary T. O’Sullivan is an experienced Executive and Professional Coach specializing in supporting managers, executives, and professionals when they need to exhibit grace under pressure in stressful career, job, leadership, or personal situations.

Mary T. O’Sullivan, holds a Master of Science, Organizational Leadership (MSOL), is a Professional Certified Coach (PCC) by the International Coaching Federation (ICF), and a Senior Certified Professional by the Society of Human Resource Management (SHRM-SCP). Mary holds a Graduate Certificate in Executive and Professional Coaching, University of Texas at Dallas, and has been awarded the ACTP certificate. In 2018, she achieved the Professional Certified Coach (PCC) designation by the ICF. Mary is also a certified Appreciative Inquiry Practitioner and is certified in EQI-2.0 and EQ 360 Assessments.  During her graduate education, she was nominated by her professors and admitted to Beta Gamma Sigma, the International Honor Society. Additionally, Mary completed Advanced Studies in Education from Montclair University, SUNY Oswego and Syracuse University. Through her corporate experience, Mary has become a Certified Six Sigma Specialist, Contract Specialist, Integrated Product Team (IPT) Leader. She also holds a Certificate in Essentials of Human Resource Management from SHRM.

Mary is the veteran of four major careers, spanning over 40 years. She has over 30 years experience in the aerospace and defense industry. In each of her many roles at General Electric, Lockheed Martin, and Raytheon, she acted as a change agent, moving teams and individuals from status quo to new ways of thinking, through offering solutions focused on changing behaviors and fostering growth.

In her early career, Mary taught high school English for 10 years in the Syracuse, NY area and holds a permanent teaching certificate in the State of New York for secondary education. Mary was also a successful salesperson for Thomas Publishing,  a manufacturing sourcing directory, now known as

Mary is the founder of Encore Executive and Executive Coaching, and the author of many newspaper and magazine articles and a book,  Ponderings of a Corporate Refugee: Observations from the Cube.

She is also the author of the 4 Square Solution Focused Steps to Success, a FREE  guide to help you learn how to clarify what you want and take action to get it. To get your copy, go to

Mary lives in Kingston, Rhode Island with her husband and two lovable labs, Onyx and Bonnie.

Recent and Upcoming Venues for Mary's Talks

  • North Kingstown Chamber of Commerce
  • Mind, Body, Spirit Expo
  • South Kingstown Chamber of Commerce
  • Newport County Chamber of Commerce
  • TheHiveRI
  • Sprout Providence
  • East Greenwich Chamber of Commerce
  • Center for Women in Enterprise
  • Ocean State Business Expo
  • The Crowne Plaza
  • The Providence Omni Hotel
  • The Warwick Center for the Arts
  • Northern Rhode Island Chamber of Commerce
  • North Scituate, RI Rotary Club

Mary's Most Requested Talk

Encore Leadership Series: “From Hassled to Happy”

This presentation is designed for managers, executives, and professional who are ready to make a move, either upward or outward, regardless of circumstances. Her mission is to help clients to exhibit appropriate grace under pressure when they find themselves under stress in career, job, relationship, or personal situations.

In this presentation you’ll learn:

  • Mary’s 4 Step Process to How to Clarify What You Really Want and Take Action to Get It
  • How you can learn to take small steps to make big changes
  • How to get what you deserve from your current situation when contemplating a job change.
  • How to tell what you can and can not control about your current situation.
  • When and How to Formulate your Plan B

After four career transitions, from education, to industry, sales, and coaching, Mary’s learned what it takes to land the job that she really wanted, and how to make a graceful, productive exit when she needed to. Mary can help you find equilibrium in the midst of chaos, when you are really feeling pressured and stressed out.

Organizations, Associations & Credentials

Ask yourself, are you engaging a university trained and certified coach with advanced credentials from the International Coach Federation?

Or is your coach the product of an off beat short term encounter session?