Calabasas-based consulting firm Tech Exec Partners Inc. has announced its merger with the Southern California office of Sierra Resource Group. The business will continue under the name of Tech Exec Partners. “By adding Tech Exec Partners’ core competency in IT consulting services to Sierra Systems’ specialty in Accounting and Finance, we are able to provide a more focused, more thoughtful balance of services to our clients,” Dianne Gubin, president of Tech Exec Partners said.” Tech Exec Partners is a full service consulting and executive placement firm. The firm prides itself on its “ability to match corporate partners with exceptional talent to create powerful winning teams.”