Riviera-PRO - System Verilog, Verilog. VHDL, SystemC, HDL simulator targeting ASIC and large FPGA designs.

Dubsado - Dubsado is flexible — it gives you 5 (now 6!) ways to add new leads. Best of all, 5 ways are automated.

Synopsys VCS - HDL Simulator of System Verilog, Verilog, and VHDL for ASIC design and verification.

Harlow - Harlow helps freelancers get organized, save time, and look professional with automated invoicing, proposal templates, and much more—all from one centralized hub.

VCS - Workforce management software for police & fire departments

Hecticapp.com - Hectic is a single digital workspace with all the tools needed to start, manage and grow a freelancing business, with a built-in personalized community to help freelancers connect with others, develop and refine their craft and get help from experts.