The grades of 6 IT Services stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

Accenture Plc (ACN) earns a A this week, jumping up from last week’s grade of B. Accenture Plc is a global company engaged in management consulting, technology services, and outsourcing. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of ACN stock.

CACI International Inc Class A’s (CACI) ratings are looking better this week, moving up to a B from last week’s C. CACI International Inc Class A provides information technology (IT) and professional services to the U.S. federal government and commercial markets in North America and internationally. The company also gets A’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of CACI stock.

Booz Allen Hamilton Holding Corporation Class A (BAH) improves from a C to a B rating this week. Booz Allen Hamilton Holding Corporation Class A provides management and technology consulting services primarily to the United States. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of BAH stock.

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

Perficient, Inc. (PRFT) is seeing ratings go up from a C last week to a B this week. 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 free cash flow. For more information, get Portfolio Grader’s complete analysis of PRFT stock.

Higher One Holdings, Inc. (ONE) shows solid improvement this week. The company’s rating rises from a C to a B. Higher One Holdings, Inc. provides technology and payment services to the higher education industry as well as student-oriented banking services on campus communities. The company also gets A’s in operating margin growth, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of ONE 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.