http://www.flapp.aero
Flapp, is a Web application, for online booking of aircraft and logbook updating. It is suitable for Groups, Individuals and Flying Schools, with many aircraft, instructors and students. being free, it is funded by advertisers. There is a low cost subscription version available, with no ads.

http://islandaviation.aero
Supplier of Avionic & Electrical Instruments for General & Commercial Aviation

https://lockr.aero
As an established service provider to the industry, lockr.aero provides record keeping services in the cloud for pilots and aircraft owners/operators. Available anywhere at anytime, our solutions provide the aviation industry an effective means of logging hours for pilots and recording flight hours for aircraft, maintenance performed, scheduled items, defects and so forth for aircraft. Records are accessible offline (requires app), available on Apple and Android platforms as well as any modern browser.

http://www.mothership.aero
Mothership Aeronautics manufactures and operates sUAS for surveillance aerial data collection of infrastructure. Our specialty lies in high endurance solar powered autonomous airships for linear infrastructure inspection.