Has anyone ever marketed fitness plans to companies or municipal bureaucracies? I know it's not the same as construction contracting but I find it way easier to separate money from a budget pool than from an individual. I rarely work for individuals and have never bothered advertising to them. They don't have any money and what little they have they don't want to spend.
I think some large companies push fitness programs. Johnson & Johnson, for instance, have the insipidly named Live For Life program. Obviously there's some financial benefit to the company, probably in the way of reduced HMO and insurance costs, increased productivity, worker morale, etc. If you could demonstrate to beancounters that they will be dollars ahead by instituting a fitness/wellness/whatever thing, you could pick up corporate contracts or act as a consultant for companies establishing in-house programs.
Putting together a proposal would take more work I guess but you could land bigger fish. And tbh you're used to serious trainers willing to put forth effort. Idk how sane you'd be dealing with whiny sneak-eating housewives only interested in fat spot reduction.