The Texas company under fire in the District for allegedly failing to maintain traffic-enforcement cameras and parking meters contributed thousands of dollars last year to political campaigns and travel by D.C. leaders, at the same time negotiating new deals with the city, an Examiner investigation found.

Affiliated Computer Services laid out more than $20,000 in 2006, including a $10,600 contribution to last summer’s privately underwritten trade mission to Africa organized by then-Mayor Anthony Williams.