The WennSoft Legacy in Field Service and Construction
Our Mission since 1995: Engineering Purpose-Built Solutions for the Skilled Trades
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Born From the Trades
WennSoft’s roots date back to 1911, when the Wenninger brothers founded their plumbing and heating business in southern Wisconsin. In fact, the “Wenn” in WennSoft is derived from the Wenninger name.
Fast forward to the 1980s, when the Wenninger family business included a new family member – Jim Wenninger. When Jim joined what was then one of Wisconsin’s largest mechanical contracting and engineering businesses, he quickly noticed that the Wenninger Company was running their business on antiquated systems. They needed a more modern way to manage the company’s growing installation and maintenance business.
Jim could not find a purpose-built solution to modernize the Wenninger Company business, so he designed one using the leading Great Plains ERP (later to become Microsoft Dynamics GP). Over time, he built a modern software system — built for contractors, by contractors — which led to the founding of WennSoft in 1995.
Since 1995, WennSoft has been delivering purpose-built solutions for the trades. Today, over 500 customers turn to WennSoft to help them run their businesses as profitably and efficiently as possible.
The Signature suite has continued to innovate as the industry's technologies have evolved to mobile and the cloud. In 2013, MobileTech was introduced, followed by the debut of MobileTech inspections in 2021. In 2024, WennSoft launched two new cloud offerings: Signature Time and Signature Telematics.