I have been an NSERC grant application reviewer for the Mechanical Engineering Committee; I have been a National Science Foundation grant application reviewer for the Computer Science committee.
I have been an external reviewer for people at other universities for the purposes of tenure and promotion. Non-confidential details are available on request.
I am a regular book and proposal reviewer for Oxford University Press, Academic Press, and Springer-Verlag.
I have been a referee for the following journals and conferences.
American Mathematical Monthly,
SIAM Workshop on Automatic Differentiation,
J. Comp. Physics,
Fields Institute Workshop on Normal Forms and Homoclinic Chaos,
J. Fluids and Structures,
J. Math. Analysis & Applications,
SIAM J. Numer. Analysis.,
SIAM J. Sci. Stat. Comput.,
and J. Symbolic Computation.
By far the most work comes from MapleTech.