Here's a company to watch: Goodman Networks. Yesterday the wireless network builder announced it is buying Design Build Technologies, a wireless construction company that builds and maintains communications towers for the major network operators.

The company is piecing together a huge business in providing services to build out and maintain telecommunications infrastructure in North America. President and CEO Ron Hill said the acquisiton will position Goodman to better handle operators build out 4G services. Goodman partners with the large operators and equipment providers to design and build mobile cell sites and technology deployments.

This is the latest in a string of acquisitions. In February, Goodman acquired the Services Division of Cellular Services, a specialist in the small-cell market. in May, the company acquired publicly-held Multiband.

Goodman is an off-the-radar growth story, but it is a fascinating one. The company was started by five brothers -- the Goodman brothers (shocking, eh?) -- as a small family owned business in Texas in 2000. It started in technical staffing and network retrofits and later moved into cell-site technology upgrades and maintenance. It's now piecing together a portfolio of all communications planning and building services ranging from networking planning and design to networking monitoring.

Goodman has has grown to more than $600 million in revenue in 12 years! The company says it did $651 million in revenue in 2012. That is an 18,000% growth rate. It has been named to both the Deloitte Fast 500 and Inc. lists of fastest growing companies.

This home-grown Texas company is quiet, but watch this space. Goodman's acquisition plays means it's in an aggressive growth mode, and it may be looking position itself for an IPO down the road. It certainly has the size and scale to do that.