Themis Papandreou was born and raised in Larissa. He studied Mining Engineering at NTUA and Photography at EMEF (Photography Research & Development Studio) in Athens. After qualifying, he worked in professional photo labs and was responsible for printing for some of the best professional Greek photographers.

In 1993, he took a course at Vlassa College, also in Athens, in order to specialise in commercial photography.
He returned to Larissa in 1994, and a year later opened his own studio, fotografi, providing professional services in the fields of commercial and event photography. This led to close collaboration with most of the large manufacturers and commercial agents in Central Greece.

During this period, he also mounted two exhibitions of his black and white infrared film work.
Between 1995 and 2000, he taught photography techniques to the “Exodos” therapeutic community photography club. This resulted in six further successful exhibitions, the last of which, entitled ''Disappearing Professions'', was presented at the Contemporary Art Centre of Larissa.
In 2008, he relocated to larger premises and opened Studio Papandreou, equipping it with the necessary technology to manage the entire photography and videography process in-house, from shooting to the finished product.

His team expanded to include a graphic artist, a marketing/PR executive, and a video editor, all of whom undergo continuous training to ensure the highest level of customer service and quality.
Studio Papandreou regularly participates in local fairs, presenting both existing and new products and services to the local market. Significant emphasis is also placed on developing its online presence to expand its client base nationally and across Europe, offering services to both Greek and foreign nationals.
Themis Papandreou has been a member of Phoebus (the photographers copyright association of Greece) and SWPP since 2010.
In June 2015, he was awarded the ASWPP qualification, becoming one of only six Greek wedding photographers to hold this honour.
Since 2019, he has been creating unique video and photo studio content for companies with national and international operations.