It occurred overnight between Monday 10 November and Tuesday 11 November 2014, from WGC Landscapes, Swindon Lane, Kirby Overblow.
The thieves stole chainsaws, hedge trimmers, lawn mowers, leaf blowers and strimmers. They also took a power saw, engines and hand tools. The manufacturers of the stolen items include Stihl, Honda, Makita and Combi.
The value of the stolen items is several thousand pounds.
Also stolen was a white Ford Transit van with the registration number YA13WPY, and a drop-sided lorry derived from a Ford Transit. It has the registration number FV08MVL.
PC Quita Passmore, of Harrogate Priority Crime Team, said: If you were in the Kirby Overblow area at the time this burglary took place and noticed any suspicious behaviour I urge you to come forward and contact the police straight away.
I am also keen to speak to anyone who has been offered any tools matching the description of those stolen in unusual circumstances, or has seen either of stolen vans, and ask them to get in touch as soon as possible.
Anyone who can assist with this enquiry should contact Harrogate police one 101, select option 2 and ask for Quita Passmore. Alternatively, information can be emailed to firstname.lastname@example.org
Or call Crimestoppers anonymously on 0800 555111, quoting reference number 12140194974.