PSO vs TTEK Comparison

UK-listed Pearson is a testing and educational provider. Pearson's primary operations are in assessment and qualification testing and higher education, but they also provide English education and testing, virtual learning, prehiring testing and screening, and upskilling/reskilling. The company divested noncore businesses, including the Financial Times, The Economist, and publishing house Penguin, and is now focused on being an educational resource and testing provider.

Tetra Tech Inc provides consulting and engineering services for environmental, infrastructure, resource management, energy, and international development markets. It specializes in providing water-related services for public and private clients. It designs infrastructure, facilities, and other structures with complex plans and resource management. it has two reportable segments. Its Government Services Group (GSG) segment includes activities with U.S. government clients (federal, state and local) and activities with development agencies world-wide. Commercial/International Services Group (CIG) segment, which derives maximum revenue, includes activities with U.S. commercial clients and international clients other than development agencies.