Hi Sam, I need to take my startup to next level and that requires me to work with established companies. However now everything I have is a not so fancy looking

Hi Sam, I need to take my startup to next level and that requires me to work with established companies. However now everything I have is a not so fancy looking site and user traction is low. Should I start engaging potential partners and pitch my idea first or focus on getting user traction up before anything else? Thanks!