At PhDI, we understand the secret to all successful advertising is not the invention of new and exclusive terminology but the creation of new relationships based on that which is familiar. Design should talk to, not at. PhDI is proud to have been born and bred in Sheffield – a very special city, which offers unique inspiration.  We are a traditional agency with traditional core values and enjoy getting to know our clients in person. We feel it is important to project a relaxed working relationship, while at the same time maintaining our excellent work ethic.  As a collective, our talented design team boast over 30 years of experience and are committed to exploring previously unexplored avenues of creativity both for client projects and in their spare time.  We harmonise innovative design concepts with a classic style, which stands the test of time.

Have a look around and get in touch, we look forward to talking to you.