Gartner Expert

Marie Sienkowski

Sr Director, Research

Marie Sienkowski is a Senior Director Analyst in Gartner's Sourcing Procurement and Vendor Management team. Ms. Sienkowski focuses on Microsoft licensing topics, including negotiation planning, strategy and best practices, evaluation of Microsoft's various volume licensing models and programs, contract reviews, and analysis of pricing proposals.

Previous experience

Prior to joining Gartner, Ms. Sienkowski spent more than 15 years in IT sourcing, procurement, vendor management and software asset management roles. She has worked for publicly held manufacturing companies, including First Solar, Owens Corning and Pilkington North America (now NSG), as well as retailer Borders Group and privately held media company Crain Communications.

Professional background

First Solar

MIS Commodity Manager

Owens Corning

Senior Sourcing Specialist

Pilkington North America

Global IT Procurement/Desktop Asset Analyst


Juris Doctor, University of Toledo, cum laude

Bachelor of Arts, Sociology, Kalamazoo College

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Top Issues That I Help Clients Address

1Preparing and planning to negotiate a Microsoft contract

2Negotiating new and renewal Microsoft Volume Licensing Agreements and price proposal reviews

3Deciding between Microsoft Agreement Types: Enterprise Agreement (EA/EAS), MPSA, SCE, CSP or Open Programs

4Determining which Microsoft contract terms and conditions are more negotiable than others

5Negotiating new and renewal GSuite and Google Cloud Platform Agreements and price proposal reviews