Non-immigrant (temporary visas)
H (Specialized Workers)
E-2 (Treaty Investors)
L (International Transfer Workers)
O (Exceptional Ability Workers)
P (Artists & Entertainers)
R (Religious Workers)
TN (Canadian/Mexican NAFTA  petitions)

Immigrant petitions:

Investors Visas-EB5
PERM
Special Immigrant Workers
Employment based adjustments

Family Based Immigration:

Immigrant Visas for Alien Spouses, Children, Parents, and Siblings (adjustment of status or consular processing)
Provisional waivers of inadmissibility
Waivers of admissibility
Naturalization

Others :

Student Visas
Visitor Visas
VAWA family abused cases
U Visas

Others :

Authorization to Return to Canada
Rehabilitation petitions following criminal activity