Jell works for a select but diverse range of corporations and not-for-profits which have committed to be the best in their respective areas. Sectors include the arts, consulting, finance, urban issues, nature conservation, and youth development.
- APS BioGroup
- Actucast
- American Bar Association
- American Cancer Society
- Atelier Jouvence Custom Stoneworks
- Bridge Strategy Group LLC
- Brown Line Metalworks, LLC
- CAN TV
- Chicago Chamber Musicians
- Chicago Wilderness
- Citadel Investment Group / Bridgefield
- Credentials Solutions
- David Claus, Writer
- Evanston Community Foundation
- Free Spirit Media
- Grant Park Music Festival
- Greater Chicago Food Depository
- Harris Theater for Music and Dance
- Infant Welfare Society of Evanston
- JLW Instruments
- Jane Addams Resource Corporation
- Lloyd A. Fry Foundation
- Magnate Capital Partners LLC
- Muddy Boots Landscaping
- NeuroTherapeutics Pharma, Inc.
- Northern Trust Corporation
- Resolution Digital Studios
- SafelyFiled
- Safer Foundation
- Scott Simpson Builders, Inc.
- Show Department, Inc.
- Strategex, Inc.
- Telligent Systems, Inc.
- The University of Chicago
- Umoja Student Development Corporation
- Victory Park Capital
- Victory Park Resources
- Victory Park Securities
- Wind Point Partners
- WireHarbor Security
- XR Trading, LLC
- Zera Construction, Inc.