E91, formerly ENTEGEE is a stable business that has provided valued services for over two decades. Our commitment to a long term relationship with our clients is evident through our history.

  • 1986 - Founded in Davenport, Iowa, as a means for assisting clients faced with project overloads, backlogs and specialized requirements. We began recruiting and hiring technical professionals to work at client facilities on temporary bases.
  • 1991 - Opened our first Design Center in Dubuque, Iowa. This enabled us to provide our own experienced engineering personnel with their own equipment.
  • 1995 - Completed first large-scale, 1+ year engineering project.
  • 1997 - Opened second Design Center in Davenport, Iowa. Enabling us to attract more experienced personnel and expand our capabilities.
  • 2003 - Signed our 7th consecutive 2-year agreement with our initial client. We surpassed the 400,000 hours of engineering service for this client. Our total clients have grown to over 200 across North America.
  • 2007 - Dubuque Design Center moved to 3530 Digital Drive to accommodate growth. ENTEGEE surpasses 300 clients and has grown to 130 employees
  • 2010 – MPS Group is acquired by Adecco Group and joins Adecco Group North America as part of the Specialty Brands division.
  • 2011 - ENTEGEE builds an internal recruiting team to better serve our customer needs allowing us to quickly respond to needs in our Design Centers and at client sites.
  • 2013 - Davenport Design Center moves to 101 West 2nd Street to accommodate growth ENTEGEE acquires 2nd Romer Arm capable of laser scan technology, increasing efficiency of reverse engineering and inspection services.
  • 2015 – ENTEGEE is now E91 and surpasses 400 clients while growing to 300+ employees


3530 Digital Drive
Dubuque, IA 52003


101 West 2nd Street Suite 202
Davenport, IA 52801