The SIGMA Team


Sharon Van Duynhoven

Office Manager

Sharon brings our tests and assessments from the development stage to marketable product. She ensures quality control at every step of a project, edits technical documents and manuals, and artistically enhances reports and resources. She also manages contracts with clients across the globe and answers technical questions.

Sharon Van Duynhoven's Latest Articles

Large tree with roots; cover image for blog on communication skills

Great Leaders Communicate

December 2023


Great Leaders Have Strong Self-Esteem

December 2023

Great Leaders Are Persuasive

November 2023


Great Leaders Delegate

October 2023

Gaming & Career Selection

Gaming & Career Selection

October 2023

Great Leaders Are Open-Minded

September 2023

succession planning

GLAAD: Succession Case Study

January 2021


How to Set Resolutions that Last

January 2021