Well that’s the first question that came to my head when i found they were going to acquire Zend. Below are some links to dive deeper into understanding what they do and offer. It looks like they are a real good fit for PHP’s future and High-Performance computing.
Andi Guttman’s Linkedin message: https://www.linkedin.com/pulse/big-news-enterprise-php-andi-gutmans
Klockwork – tool helps “developers create more secure and reliable software by analysing source code on-the-fly, simplifying peer code reviews, and extending the life of complex software.” – https://en.wikipedia.org/wiki/Klocwork
IBM’s ILOG Visualization for C++ Products – http://www.roguewave.com/company/news/2012/rogue-wave-software-acquires-ilog-visualization
Acumem – “performance tuning tools for single- and multi-threaded applications” – http://www.theregister.co.uk/2010/10/04/rogue_wave_acumem/
TotalView Debugger – insights into debugging high-performance computing (HPC) and supercomputing applications. – http://www.roguewave.com/products-services/totalview
Visual Numerics: advanced analytics software