This week, 4 IT Services stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

This is a strong week for Euronet Worldwide, Inc. (EEFT). The company’s rating climbs to A from the previous week’s B. Euronet Worldwide, Inc. provides electronic financial transaction solutions. For more information, get Portfolio Grader’s complete analysis of EEFT stock.

NeuStar, Inc. Class A (NSR) shows solid improvement this week. The company’s rating rises from a B to a A. NeuStar, Inc. Class A provides the North American communications industry with clearinghouse services. The company also gets A’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of NSR stock.

This week, Perficient, Inc.’s (PRFT) ratings are up from a C last week to a B. Perficient, Inc. designs, develops, implements, and integrates secure and scalable enterprise portals for its clients and their customers, suppliers and partners. The company also gets A’s in earnings revisions and free cash flow. For more information, get Portfolio Grader’s complete analysis of PRFT stock.

Infosys Limited Sponsored ADR (INFY) boosts its rating from a C to a B this week. Infosys Limited Sponsored ADR provides IT consulting and software services, including e-business, program management and supply chain solutions. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of INFY stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.