Navigating your big and small accounting needs.

History & Milestones

Welcome to the land of precision.

Stephan P. Sykes founded his accounting firm in September 1995. By then he’d spent a decade in the field, and while he was grateful for the professional experience and mentoring he received, he was ready to launch out and offer his own brand of services throughout the Greater Portland area.

In 2007, Sykes decided to relocate the business a few miles southeast to Oregon City. While still working with many clients in and around downtown Portland, as well as the western suburbs, the move provided an opportunity to expand his client base as well as his services.

Quote series [icon]
  • I’m attached to all of my clients. I want to see them succeed, no matter how long we’ve worked with them.

    Diana Sykes, Plus Minus

  • I believe in working hard and exceeding the expectations of clients and coworkers. At the same time, it’s important to stay friendly, and treat people the right way. When your eyes are on numbers all day, it’s important to look up and smile. 

    Dava Munro

  • I started Plus Minus 20 years ago with the intention of combining accuracy, forethought, technology, and strong communications to create precise results for my clients. The results are happy clients.

    Stephan Sykes, Plus Minus