Officers have released images of three men they would like to speak to following two incidents at buildings in the Portway Business Park in Andover.
At around 6pm on Tuesday 8 May, three unknown men entered Cooper Foods in Hopkinson Way.
They forced entry into an office but nothing was taken.
At around 11.20am the following day (Wednesday 9 May), three unknown men entered The Alexander Bell Centre in Hopkinson Way.
They approached a member of staff before leaving.
Officers investigating are linking the two incidents and would like to speak to the three men in the CCTV images as part of their investigation.
If you have any information relating to this case, please call 101 quoting reference '44180171335', or contact Crimestoppers anonymously.