In 1987, Phoenix Contact introduced the fieldbus system INTERBUS. Phoenix Contact manufactures in over 10 nations: Germany, USA, China, India, Poland, Greece, Brazil, Turkey, Sweden and Argentina and employs 12,900 employees in 50 international subsidiaries. The company was founded in 1923 in Essen, Germany and in 2014, accounted for annual sales in excess of 1.77 billion Euro (approximately $2 billion USD). The global headquarters of Phoenix Contact is located in Blomberg, Ostwestfalen-Lippe, Germany.
