Between June 4 June and 16, there were 15 incidents have occurred across the Dundee, Birkhill, Fowlis, Invergowrie, Kinross and Monifieth areas.
Suspects have entered the commercial premises, stolen vehicle true keys from offices and used them to steal customer vehicles.
It is believed that the stolen vehicles have been used for other crimes, including breaking into shops and homes within the Tayside Division.
DI Allan Thomson said: “Our enquiries are progressing and I would ask anyone who has seen or heard anything suspicious that might help with our investigation to get in touch as soon as possible.
“I would also like to encourage all business owners to check that their crime prevention measures are in good working order including any intruder alarms or CCTV. Please also check that your premises is locked securely at close of business and customer keys are stored in a secure place.”
Crime prevention advice is available by emailing the Partnerships, Interventions and Preventions Department at firstname.lastname@example.org”