Subsidiaries

• Keller & Kirkpatrick - http://www.kellkirk.com/
• Instrument Sales, Inc. - http://www.sgpinstrumentsales.com/
• Underwater Engineering Services, Inc. - http://www.uesi.com/
• Corrosion Control Consultants & Labs, Inc. - http://www.ccclabs.com/
• Strategic Environmental & Ecological Services - http://www.strategicenvironmental.net/