Currently, I am running a solo shop as a systems architect and programmer specialised in telecommunications. My clients are big telcos, the projects are part of multi-year initiatives, and their goals range from compliance with regulatory requirements, to new product roll-outs, to cost-cutting. I build them small, special-purpose network services for which the big IT service providers are either too expensive, too slow or just don't have the right skills at hand. I charge either by day or fixed-price, where the latter is still based on an effort estimate, plus contingency.
How should I ever get to the position to price by value? Often, my direct project sponsors themselves can't put a price tag on the value achieved. Working deep on the systems layer, there are many hops and even more so contributors between me and my clients top or bottom line. I see zero chance to get a procurement department agree to a profit-share with a single guy like me.
Do I have the wrong clients for this kind of pricing strategy? Or has someone here achieved it while staying small/solo in the enterprise world? I could also find gigs as a business analyst/program manager at my telco clients, but I don't think it would make a difference in the pricing strategy.
[1] A notable exception from this seems to be tptacek's Matasano. Still, with no experience in the security industry, I wonder how value-based pricing works there, given that security services IMHO seem more geared to preserve value than increase.