"Commercial Laundry is a shrinking market"
Much would depend upon many factors including what you are defining as "commercial laundries".
Yes, in many areas of the country laundromats are closing. But that often has much to do with rising fixed costs (rents, wages, utilities, taxes, etc...)versus demand/customer base.
Here in NYC nearly all laundromats do drop-off and that sector of business is growing. A good laundromat owner with business smarts can make his (or her) money on a good pick-up and delivery scheme. Even here in NYC with all these new apartments either installing en suite washers and dryers, and or new laundry areas, many still prefer the old ways; to send things out.
http://www.dexter.com/support/knowl...-and-commercial-accounts-are-you-missing-out/
Happily we live in the Internet/App world which is revolutionizing even pick-up and delivery.
https://www.timeout.com/newyork/shopping/the-best-on-demand-laundry-apps-in-nyc-ranked
https://www.digitaltrends.com/home/best-laundry-apps/
What is true about these app services is they aren't much different than how many corner laundries in NYC and other urban areas have operated for decades. That is work is contracted out to a wholesale laundry. This can be anyone from a large enterprise to a laundromat.
On the large industrial commercial end what you are mostly seeing is consolidation as larger laundries grow more so and or push smaller ones out of business.
Advances in tunnel/batch and automated laundry equipment has revolutionized the business.
Hotels, motels, hospitals, restaurants, gyms, the lot all still produce tons of laundry per day, and many no longer have in house laundries. So it has to go somewhere.