MicroAccounting Systems, Inc. (MASI) has been helping businesses with the planning, implementation, and on-going support of their AddonSoftware systems since 1983. Our clients are primarily Pacific Northwest companies in manufacturing, wholesale distribution, and other inventory-intensive industries.

 20 Clients for 20 Years!

 We are celebrating the fact that we've had more than 20 clients for 20 or more years - some for as long as 25 years!  That says a lot about AddonSoftware!  Especially when you consider the wide diversity of the clients.  AddonSoftware is simply wonderful software that can be customized to fit a variety of clients, and then is reliable to last.

Click here for a Video Demonstration

With breakthrough innovations, AddonSoftware by Barista is ready for the market!   It is possibly the only full-featured middle-market ERP system that doesn't require any Microsoft products anywhere on the network!  And since it is Java based, it runs on any computer and operating system, including MAC, Linux, and Windows, or a mix.

Click here for an exciting look at introductory demonstrations!  After six years in development and a complete re-write using brand-new technology, it is ready for our clients to upgrade and for new clients to buy.