Background photo
  • GWB diagrams
  • Reaction path modeling
  • Reactive transport modeling
  • Training


Fluid mixing wizard!

Mix any number of samples in GSS in any proportions with SmartMix wizard.

GWB 10.0 release is better, easier, faster!

Our major upgrade features colloid-facilitated transport, a central dashboard, undo-redo in GSS, a thermo data editor, MATLAB bindings, axisymmetric coordinates, turbo scripting and much more. And it's Windows 8 friendly. Upgrade now!

GWB short courses

Learn from the pros! Join us in Vancouver pre-GSA, Philadelphia, Champaign, Prague pre-Goldschmidt, or Yokohama.

Annual license option

New annual licenses offer low initial cost, and you never pay for an upgrade.

Upgrade to annual and save!

Take 50% off the first year when you convert GWB9 to a GWB10 annual license. Contact


Free Student Edition

University students may be eligible to apply for the free GWB Student Edition.

We're live on Youtube

Check out the many tips and techniques on our Youtube channel.

Training at your site

2-day on-site courses are effective, efficient, and fun. We will present either of two short courses for as little as $4000.

Laptop licenses for university classes

For $200, up to 20 students can install the GWB on their laptops. Details.