Hi Shell : )
Mig pigments was founded by Miguel (read MIG) Jimenez. those pigments are his product, but he sold the company and started AK (i think) but the company ( MIG ) retained his name.
I have used some AK products, they are in the same kind of price range and very high quality also they have many ready made washes and special weathering products. Here is a link to their website. It is very informative http://akinteractive.foroactivo.com/ . You love those MIGS PIGS !! me too, but the AK is very nice and there are even company's that sell pigments for model railroading with colors that are so close or the same you would be surprised !
Hope that site helps you out, man
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