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About Us


A Proud Member of The InstroTek® Group

Rainhart designs, manufactures, and distributes laboratory testing equipment for soil, concrete, and asphalt, located in Austin Texas we specialize in laboratory equipment and supplies for materials testing industry and has been in operation for over 70 years. Since its inception in 1945, we have provided innovative tools and instruments to help make labs more efficient, productive and more profitable.

In 2018 Rainhart was acquired by InstroTek. InstroTek was founded in 1997 with a vision to provide our industry with innovative product solutions and unmatched customer service. Since that time, we have delivered and continue to develop a variety of new products to the construction and asphalt markets. In addition, InstroTek has received numerous US and international patents on these instruments. These innovative solutions have established InstroTek as a leading instrumentation company in the construction and transportation industry, worldwide.

We appreciate your business, support, and friendship over the years and look forward to serving you both to the USA and International markets.

Many of our products were sourced and developed because a customer has asked "Can you get something like this? I can't seem to find it anywhere”

Our website shows a lot of products we commonly offer, however, if you can’t find what you are looking for on our Website please e-mail us at or call us at (512) 452-8848 or (800) 628-0021. We look forward to being of assistance to you and your colleagues.
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