The number of bid protests filed with the GAO has risen steadily over the past 10 years and GAO statistics show the likelihood of achieving some success is about 45%, meaning bid protests are effective almost half the time.
The Plight of Mid-Tier Contractors: Leveling the Playing Field
By Raymond Thibodeaux on Feb 28, 2019
Mid-tier contractors are on their own when competing for federal contracts. They lack the set-asides and other legislative supports of small businesses and yet they don't have the depth of resources that large businesses do.