Power Systems or certain companies in the healthcare space? I was working in a company making software for utilities and oil & gas companies (think competition to GE, Siemens etc). Don't think this will ever be slowed down or have to lay off people specifically due to a 2008-09 like recession
For a while now I've had a vague suspicion that if we poured as much analysis into (broad strokes) smart grid stuff as we do advertising/the stock market, issues like renewables' intermittence would start looking like less of a big deal. (Although I'm aware there are already lots of smart people working on keeping the grid reliable!)