All speeding tickets with all insurance companies including Progressive insurance affects your insurance rates for a period of 3 years.
It's known as a chargeable period and the insurance rates will be affected during that chargeable period for 3 years whether through progressive or through any other auto insurance company.
When you get a speeding ticket you should go to court and plead no contest as well and take a traffic class to keep the speeding ticket from adding points to your license which can affect your insurance rates.