Yes, though I don't know enough about the field to say how it relates to what you're doing. I was holding them up as a business model to look at, not as an example of "here's your competition", though maybe they are. I dunno.

They work with geological data to help oil companies build safe platforms (losing a platform to a natural gas deposit costs millions of dollars and occasionally human lives, for example, so the amount they're willing to spend to prevent it from happening is incredibly high), as well as profitable and efficient wells. They also work with fluid dynamics data for a consumer products company, to make sure your toothpaste comes out of the tube without splattering, etc. All seem like "simulations" to me. But I don't know. Visualization is a big part of what they do, as well, and SciPy has awesome realtime visualization capabilities (lots of folks also like MatPlotLib, which works nicely with SciPy).