Techdrill
- Provides drilling engineering software for field development, monitoring and optimization, and operations budget.
- http://www.techdrill.com/

Maurer Technology Inc.
- Software for drilling and coiled-tubing operations. Includes technical fact sheets and online demonstrations. Based in Houston, Texas.
- http://www.maurertechnology.com/

Daily Driller
- Web-enabled software that manages daily wellsite reporting while maintaining costs.
- http://www.dailydriller.com/

UnRiskIT
- Software for assessing risk and evaluating uncertainty for underbalanced drilling and related production performance.
- http://www.unriskit.com/

Knowledge Systems Inc.
- Software for quantifying geopressures and wellbore stability for use prior to and during drilling. Consulting services. Offices USA, Norway and Italy.
- http://www.knowsys.com

ST Consulting
- International drilling engineering consultant offers free Excel spreadsheet templates for drilling operations.
- http://www.st-consulting-online.net/

Drillingsoftware LLC
- Excel software for drilling consultants and rig supervisors, hydraulics ,well control, workovers, completions and well bore schematics. Company based in Sacramento, California.
- http://www.drillingsoftware.com/

Tech-21 Group
- Directional drilling, navigation, voyage data recorders and general software development. Offices in Inverness, Newcastle and Aberdeen.
- http://www.tech21.co.uk/

Peloton
- Information management system for well planning, drilling, completion, testing and workovers. Offices in US and Calgary.
- http://www.peloton.com/

Infostat Systems, Inc.
- Drilling database software for drilling reports and IADC Reporting. Based in Sacramento, California.
- http://www.infostatsystems.com/

Stoner Engineering
- Technical hole deviation technology with rig site data-capture and database storage for daily drilling reporting. Free trial downloads available.
- http://www.makinhole.com/