Do you mean the trucking companies or the software developers? The trucking companies aren't small companies by any measure. Werner Enterprises for example has

Do you mean the trucking companies or the software developers? The trucking companies aren't small companies by any measure. Werner Enterprises for example has 13k employees, 8k trucks, and $700M in revenue. And they're a small fry in shipping. JB Hunt has 30K employees and $12B in revenue. Swift Transportation has 22K employees, 23K trucks, and $6B in revenue. Schneider Transportation has 19K employees and revenues of $5.5B. Many of these companies have in house developers working on custom logistics packages to optimize every single detail of their operations. It's a very small margin business.