Contact us at Cortex:
4220 Duncan Avenue
St. Louis, MO 63110

Team leader/primary contact:
Mark Stallion

Latest news about Greensfelder:

Greensfelder at Cortex

Outside of the Cortex building in St. Louis, MissouriThe Cortex Innovation Community is an innovation hub and technology district in St. Louis, and Greensfelder is proud to be an active member of the Cortex community. On a daily basis, firm attorneys work from our office in the Cortex 4220 building. Our goal is to support entrepreneurs and the wider innovation community by being a resource and a partner. Cortex is home to 350 technology-related businesses, and it provides a deep pool of entrepreneurial support programs available to the entire St. Louis community.

Greensfelder's office in the Cortex Innovation Community was opened in summer 2018. Designated attorneys rotate in and out of the office, taking time while there to collaborate with individuals from other organizations. Our Cortex team includes attorneys from practice groups across the firm, with experience in industries including health care, financial services, media, retail, technology and numerous others. We work in employment law, intellectual property, litigation and business services, advising businesses and entrepreneurs on the legal matters essential to their success and growth.


Headshots of attorneys Row 1, from left to right: Sluys, Maricle, Stallion, Johnson, Hartnett, Reynolds, Gusmano; Row 2, from left to right: Rodriguez, Sweeney, Horrom, Smith, Drake, Daming; Row 3, from left to right: Howard, Harris, Hedger, Hirshberg, Barr, Mitchell, Wymore

Our Cortex team of attorneys includes: 

Row 1: Debbie Sluys (Business Services), Carson Maricle (Business Services), Mark Stallion (Intellectual Property), Karen Johnson (Intellectual Property), Andrew Hartnett (Litigation), Erika Reynolds (Litigation), Gino Gusmano (Litigation)  

Row 2: Julie Rodriguez (Litigation), Patrick Sweeney (Business Services), Jennifer Horrom (Health Care), Zack Smith (Litigation), John Drake (Litigation), Lauren Daming (Employment & Labor)

Row 3: Audrie Howard (Employment & Labor), Lauren Harris (Employment & Labor), Clark Hedger (Litigation)Rachel Hirshberg (Business Services), Cassie Barr (Business Services), Andrew Mitchell (Trusts & Estates), Mary Ann Wymore (Intellectual Property/Litigation)