full company design

We are starting up a new dna genetic company to market our laboratory services. We are selling ancestry / ethnic origin tracing via dna. our market is educated and mature or general ethnic groups. we need a look and image for flyers, website, leaflets sales, posters etc. the look will have to reflect the tracing of ones ancestry in a friendly scientific manner. Urban or highly funky and cool is probably not the sort of thing but i am not quite sure what the look should be. Website is already being built as it is part of the technology. we would prefer a uk candidate but we will adapt for the right person.