The company was established in 1984 when Antti Ranta, M.Sc. (Eng.) from Kitee, Finland, bought the old central workshop of the cooperative organisation SOK (Suomen Osuuskauppojen Keskuskunta) located in Vaajakoski. Thus, Rannan Teollisuuskone became the first subsidiary of engineering workshop Konepaja Antti Ranta, located in Ylämylly, near Joensuu.
In March 1998, the company moved from Vaajakoski to its current premises situated in Leppävesi.
1998Towards the end of the same year, a partnership contract was closed with a leading cable machine manufacturer. With the contract, the company expanded its machine and equipment installation activities to Vantaa.
Rannan Teollisuuskone is renowned as a reliable industrial equipment manufacturer and subcontractor. Equipment manufactured by the company has been delivered to all continents.
In summer 2013, Rannan Teollisuuskone acquired the business operations of Milston Oy. Marketing, sales, product development and manufacture of the Milston slurry separators were transferred to Rannan Teollisuuskone.