Auto City
Hires out scooters and Smart cars.
http://www.auto-city.it/

Bici & Baci
Scooter and bike hire.
http://www.bicibaci.com/

Eco Move Rent
EMR hires out bikes, scooters, boats, even helicopters and airplanes!
http://www.ecomoverent.com/

Happy Rent
Local scooter and car rental specialist.
http://www.happyrent.com/

In Italy.com
Offers guided and self-guided bike tours of Italy.
http://www.initaly.com/ads/biktour/biktour.htm

Moto Rental
Index of moped and scooter rental firms in the city.
http://www.romeguide.it/moto_rent_ing.htm

Scooter Hire
The company hires out bikes, scooters and motorbikes.
http://www.scooterhire.it/

Scooter Rent
Hire a scooter and discover Rome at your own pace.
http://www.travel.it/roma/scooters/

Tassoni Group
Directory of local scooter hire companies.
http://www.tassoni.it/guide/moto-bike-rent.htm