dP Pressure Drop Calculator
A small computer program that performs pressure drop calculations for pipework. Online version requires Flash.

Applied Flow Technology
Windows software that models fluid flow in pipe networks. Incompressible and compressible flow, and waterhammer/surge modeling.

Piping Systems Fluid Flow Software
A total working environment for the hydraulic design analysis and trouble-shooting of new and existing piping systems.

SIGMA Ingenieurgesellschaft mbH
Develops programs for Pipe stress analysis, calculation of Flow Distribution, Pressure Drop and Temperature Loss in Piping Networks. Detailed program descriptions. Also offers engineering and consulting services.

SST Systems, Inc.
The makers of CAEPIPE, pipe stress analysis software. In the field since 1984.

DW Technology
Offers VPN (Visual Pipe Network) a Windows-based computer-aided engineering (CAE) program for analysis and design of fluid piping systems. Programm description and support.

TransAM
Windows based hydraulic transient analysis (i.e., waterhammer) model for pipe systems with pumps, turbines, flow control valves, tanks, reservoirs, vacuum relief valves, air chambers, and pressurized surge tanks.