The 100 companies on The List reported a collective revenue of $8 billion in 2018, an 82 percent increase over their collective 2016 revenue of $4.39 billion.
Information was obtained from firm representatives through questionnaires and company websites. Only companies that are headquartered in Washington and recorded revenue of at least $500,000 in 2016 qualify for The List. All companies on The List are privately held and their CEOs or chief financial officers have submitted a form verifying the revenue information provided.
