I created this as a resource for information. With so many that have come and gone i felt the need to catalog it all as a reference for the community. Nothing else out there exists and there is so much info. This is an attempt to put it all in once place to be used as a resource. Please be aware of the massive undertaking that this is for one person. I personally scoured the internet, archived websites, as well as digital and physical print media for this information.

• Novarossi/Top/Rex - Novarossi World S.R.L Founded 1984
• OS Engines - O.S. Engines Mfg. Co., Ltd Founded 1941
• Picco Micromotori - Picco Micromotori S.R.L. Founded 1940
• RB Concepts - RB Concepts
• Star Sirio - Star Sirio S.R.L.

• X-Dyno - Nitrodyne Systems X-Dyno. The only trusted R/C Nitro engines dynamometer.