MIAMI–(BUSINESS WIRE)–Consertus, Inc., a portfolio company of RTC Partners, today announced the acquisition of S2 Engineering (S2), a Rancho Cucamonga, California-based provider of construction management, inspection, engineering, and materials testing services for public infrastructure projects throughout the state. For more than 25 years, S2 has partnered with transportation agencies and public sector clients across California, delivering construction oversight, field inspection, engineerin