Thieves stole electrical items from a factory in Corby after smashing a window to get into the building.
The factory in Medlicott Close on the Oak Hay industrial estate was broken into sometime between 5.15am and just after 5.30am on Tuesday, July 21.
The two men who broke into the building were disturbed and fled on bicycles.
Both men were white and about 30-years-old.
One was about 5ft 9in, slim and clean shaven.
He wore a grey woolly hat, grey bomber jacket and blue jeans.
The second man was about 6ft 2in, lean, and had a dark, scruffy beard.
He wore black clothing and a black woolly hat.
One of the men was on a lime green bike which had white detailing while the other was on a smaller black bike.
Witnesses, or anyone who knows anything about this incident, can call Northamptonshire Police on 101 or they can call the independent charity Crimestoppers anonymously on 0800 555111 or use the anonymous online form at www.crimestoppers-uk.org.