ESA uses ariane and vega rockets, they range from smaller rockets to larger (like the Ariane 6), depending on how big or heavy the sattellite is. And yes, that is a lot of rockets used and most are not reusable, but reusable system are being worked on by ESA.
Some countries have their own sattellites and own rocket system to get sattellites into space , but only the bigger countries, USA, Russia, China, Japan, i think Israel too... ?
This is link to general ESA website:[www.esa.int]
Not sure if it is usable for you...
|Question re rockets used to launch satellites||432||Susan Doris||27-Dec-19 11:40|
|Re: Question re rockets used to launch satellites||64||D-Archer||27-Dec-19 16:09|
|Re: Question re rockets used to launch satellites||63||Susan Doris||27-Dec-19 16:19|
|Re: Question re rockets used to launch satellites||63||Ellyll||28-Dec-19 09:28|
|Re: Question re rockets used to launch satellites||99||Susan Doris||28-Dec-19 17:30|