About SGI Consulting
Nonclinical, Clinical, and Regulatory Guidance for Global Drug Development
SGI Consulting provides strategic nonclinical, clinical, chemical, and regulatory consulting services to Sponsors worldwide.
Based in Portage, Michigan, SGI Consulting supports biopharmaceutical and small molecule development programs with a focus on helping Sponsors move efficiently through nonclinical drug evaluation, regulatory planning, and global submission readiness.
Founded and led by Christopher W. Stewart, PhD, DABT, SGI Consulting brings more than 35 years of toxicology, nonclinical development, and regulatory experience to programs across a wide range of therapeutic areas and molecule types.
Our Team
How We Work
A Consortium of Scientific Experts for Global Drug Development
SGI Consulting is led by Christopher W. Stewart, PhD, DABT, Founder and Principal Consultant, with program support from Annette Stewart, Program Manager. Together, they provide the leadership, scientific direction, and coordination needed to support Sponsors through complex nonclinical and regulatory development programs.
In addition to its core leadership, SGI Consulting operates as a consortium of experienced subject matter experts. This model allows SGI to bring together specialized scientific, regulatory, clinical, CMC, toxicology, pathology, and medical writing expertise based on each Sponsor’s program needs.
Rather than offering a one-size-fits-all consulting team, SGI coordinates the right experts at the right time. This flexible approach helps Sponsors access targeted guidance, practical recommendations, and efficient support across nonclinical drug evaluation, regulatory submissions, and global development planning.

