The Sterling-based company, which explores and drills for natural gas in Scotland, wants to highlight the benefits of natural gas and deal with concerns about noise and disruption caused during production.
It also aims to promote its commitment to local employment.
The London agency's founder, Peter Reilly, heads the account.
Composite Energy, form-ed in 2004, owns a rig ready to mine coalbed methane as a source of Scottish energy.
Coalbed methane refers to methane deposits in the pores of coal seams. It is created in the same way that plant material is converted to coal.