Optocraft systems (optocraft.de) are excellent, but I do not know whether a Hartmann-Shack system is what you are looking for
Wavefrtont sciences systems were also excellent, but I do not know whether they are still available (since the company now belongs to Abbott Medical Optics)
You can check Imatest http://www.imatest.com/docs/sfr_chromatic/
They are fairly inexpensive. You can try to contact them and cofirm whether their system will suit your needs. At the moment they don't offer hardware, but if you already have an appropriate camera, their software looks good.
Thanks for the info. After reading through your suggestions I think I understand now that a Hartman -Shack system is not what I'm looking for, since it's usually used for meaurement of human eyes.
Moreover, I'm looking for a soultion that also includes hardware and not only software. And lastly, chromatic aberration is not a real problem for me, so distortion, astigmatism etc. are the aberrations I'm more concered about.
Assaf, Shack-Hartmann are also used for large optical systems optics. Have a look to http://www.imagine-optic.com/. They both provide both software and hardware and have implemented the lessons learned in space applications in their products.