Yes, at 4OVER4 we do offer variable data for the envelopes. We offer address printing not just as black, but also as CMYK process. This is considered a custom quote, you would have to contact our Support Team with all the info, size, qty, ink, etc. Contact Support Team at Support@4over4.com or you can use the Custom Project page to submit your request https://www.4over4.com/custom-project