Well maybe 'secured' isn't the correct word. Customers can obviously choose to go elsewhere after contracts have expired or for their next set of tests after harvesting.
This was in a PR.
Maybe the correct statement is: "EVIO is currently collecting ~20% of the revenue available in the OR market"
This statement cannot be 100% confirmed until all labs in OR report their numbers for the end of the year. EVIO has been bringing in ~$3M yrly revenue and OR testing industry as a whole is estimated to be a ~$15M testing industry for this year.