I have a love of spreadsheets and as a designer I have always graded my own patterns.
I can work with you on grading a pattern which you have already written out (it's OK if its not the "finished article") up or down to get more sizes.
My expertise are mainly in accessories (hats, gloves, cowls, scarves etc...), shawls, garments for children and simple garments for adults (also seamed).
It is important to note that the same person can not grade a pattern AND tech edit it. Therefore if I work out pattern numbers for you, that would not be tech editing and if you want a tech edited pattern (which I highly recommend) then you need to hire someone else for that step. However, I am more than happy to help out with getting you in touch with a suitable editor for that step :-)