(Old Town, Maine - 30 April 2007) -- National GIS consulting firm James W. Sewall Company is pleased to announce a partnership with LiDAR survey-provider Terrapoint to provide LiDAR acquisition, aerial imaging, photogrammetric mapping, and digital orthophotography services.

Sewall President and Chief Executive Officer, Dr. James H. Page says, “This is a great partnership of complementary strengths and shared philosophy. As we see the industry demand for LiDAR increasing, Terrapoint recognizes the continuing importance of aerial photogrammetry for mapping and GIS. As partners, we will continue to set high standards of data quality to meet our clients’ evolving needs.”

Terrapoint President James Ferguson agrees, “This is a superb fit for both our companies. Sewall’s expertise in a wide range of mapping-related sciences and our expertise in LiDAR should produce results to the benefit of both companies and our clients.”

Terrapoint (Canada Inc. & USA Inc.) are wholly-owned subsidiaries of Pulse Data Inc. (PSD:TSX) and operate the largest fleet of LiDAR systems in North America. Terrapoint provides geospatial solutions and information to service energy, environmental, land development and transportation clients throughout North America and internationally. With more than 20 years’ experience, three regional offices and over 500 successful LiDAR projects to its credit, Terrapoint is the preferred subcontractor to many. Terrapoint’s principal mandate is to provide its clients with high value, high quality, cost effective and timely geospatial solutions using innovative techniques and technologies. For more information please visit www.terrapoint.com

Founded in 1880, Sewall provides engineering, forestry, and GIS consulting services to government and industry. Sewall's expertise in GIS is supported by 50 years' experience in aerial photography and photogrammetric mapping, 30 years' in geodatabase and application development, and 10 years’ in digital orthophotography. In recent years, Sewall has delivered GIS and data maintenance services over the web. To obtain more information, contact: Darrell Hamrick at 800-648-4202; Email: Email Contact, or visit the web site at www.jws.com.