What is a green employer?

There are many definitions of a green employer, so I'll add to the confusion by giving my own definition.
A green employer is a company dealing in green products and services in a green category. These companies can be:

  • A startup company
  • An established small company
  • A large company, with one of the following:
    • More than 50% of its revenues is derived from green products or services
    • More than 50% of its workforce works on green products or services
    • The company has one or more divisions that are dedicated to gren products or services
  • A research laboratory dedicated to green technology
  • An association or non-profit organization dedicated to green activism or promotion.