Software and consulting companies are teaming up to try to go after bigger insurance and pension customers.

Arrowpoint Technologies Inc., Princeton, N.J., a software company, is merging with Keytech L.L.C., Hartford, an information technology consulting firm, and Lynchval Systems Worldwide Inc., Chantilly, Va., a firm that sells defined benefit pension plan valuation and administration software.

Arrowpoint also has a development center in Chennai, India, with a staff of 150, the companies say.