1. Al Gore
Former US vice president, senator, and congressman
Apple
Chevron
Oracle
2. John Boehner
Former speaker of the US House of Representatives
Acreage Holdings
Deere & Company
Marathon Petroleum
3. Eric Cantor
Former majority leader of the US House of Representatives
Goldman Sachs
Moelis & Company
Spirit AeroSystems
4. Leon Panetta
Former US Secretary of Defense
Alphabet
Chevron
Oracle
5. Judd Gregg
Former US senator of New Hampshire
Boeing
General Electric
Honeywell
6. Richard Gephardt
Former majority leader of the US House of Representatives
Aetna
Centene
UnitedHealthcare