The phrase "contingent on having" is correct and usable in written English.
It can be used when indicating that something depends on the existence or availability of something else.
Example: "The project approval is contingent on having sufficient funding."
Alternatives: "dependent on having" or "conditional upon having".
This result is contingent on having favourable landowner attitudes.
Sustainable environmental management is contingent on having an effective environmental planning system.
Earlier test-drive offers from the company, contingent on having a chaperone ride along, were declined.
We do not have a secure title sponsor yet, but this event is not contingent on having a title sponsor".
Certainly let's have emergency triggers to create pauses in excessive immigrant inflows, and make benefits contingent on having made contributions.
Unlike many Web video series as of late, the Vuguru series for AOL are not contingent on having an advertiser involved at the outset.
Successful management of OAB and lower urinary tract symptoms (LUTS) may be contingent on patients having realistic treatment goals and on clinicians understanding which treatment goals are most important, for example, those symptoms that have the greatest severity or debilitating impact on patients' lives.
All of this is contingent on their having analysed every last bit of their data, though, and that is unlikely.
Since children have lower media literacy levels due to their immature cognitive abilities, specific research questions explored were: (1) whether the effectiveness of counter-ads is contingent on children having understood them; and (2) whether counter-ads may be detrimental when they are misinterpreted.
Fearful that the equal split, with Republicans remaining as chairmen, would lead to constant deadlock, Republicans made the deal contingent on their having the power to move bills and nominations to the floor in the case of a tie vote in committee.
The timely convergence of the k-clique matching protocol is contingent on nodes having up-to-date information about the cliques pursued by their neighbors.
