Skip to Content

Unique Woman-Controlled Board Responds to Customers

INTREN, one of the nation's largest certified Women Business Enterprise (WBE) specialty utility contractors, today announces continued growth through its plan to combine with Indiana-based Miller Construction Company, Inc., a third-generation full-service electrical contracting company, and also a leading WBE. By joining forces, INTREN will broaden its marketplace offerings, including Miller Construction’s deep expertise in transmission.

“With Miller Construction, we have found a culture match and an experienced execution partner, as well as a company that shares our values and our vision of transforming the way business is done,” said INTREN founder and Chairwoman of the Board Loretta Rosenmayer. “Miller Construction is a family-owned business with a long history of exceptional safety and meeting customers’ needs, which makes them a natural fit for the INTREN family.”

Rosenmayer stressed that INTREN’s acquisition furthers her vision of creating a national full-service company. “Our goal is not only to build the best women-owned business and woman-controlled board, but to be the best overall total-solutions provider for our customers. INTREN’s and Miller’s shared values of stewardship, integrity and customer focus will guide us, and firmly support our belief that companies do well in the marketplace by doing good,” Rosenmayer added.

“INTREN is known for anticipating and fulfilling the needs of our customers and we are doing just that by broadening our capabilities through the acquisition of Miller Construction Company,” said Kelly Tomblin, INTREN’s Chief Executive Officer. “By joining forces, we are continuing our evolution to serve customers in every business segment, wherever they need us geographically,” she said.

“This acquisition is in response to requests from our customers and the marketplace. We are expanding our transmission capabilities and expertise, and adding other services such as equipment testing, vegetation management and innovative professional services while providing the same safety, quality, and customer focus. We are now well-positioned to grow further and be even better partners for our customers in the future,” added Tomblin.

Christina Ernst, the CEO of the Miller Construction Company, will join the woman-controlled INTREN Board of Directors, one of the few in America’s utility contractor space. 

Miller Construction’s 175 employees will join forces with INTREN’s 1,600-strong team to provide more work to customers through a wider geographic reach. Company President Andy Carmean will continue to oversee Miller activities and will join INTREN as Regional Vice President serving the Indianapolis and St. Louis markets.

“As a family-owned and operated WBE, Miller Construction Company is thrilled to join the INTREN family,” Christina Ernst said. “Not only does INTREN embody the principles and values of Miller Construction Company, but we provide complementary services that will help INTREN achieve continuous growth and become a total utility solutions provider. Together we are well-positioned for industry leadership that will provide creative solutions for our customers. I look forward to serving on the Board and continuing to help advise the combined companies. ”

INTREN’s acquisition of Miller Construction Company shows the industry that diverse companies can combine to create a different and innovative workplace offering. INTREN’s latest growth to meet the infrastructure needs of the utility marketplace reflects their 30-year trajectory that was bolstered in 2017, when One Equity Partners became a minority investor, providing significant funding for future growth.

For 30 years, INTREN has been an innovative solution partner, dedicated to building and maintaining the infrastructure of 
the energy industry. The company’s culture of stewardship guides INTREN to care for others’ priorities as if they were their own. Through an unwavering commitment to safety, integrity, customer focus and employee empowerment, the company has succeeded in offering turnkey services to a long list of satisfied clients. As an industry leader, INTREN is proud to serve many of the country’s foremost utility companies, private contractors and developers, municipalities and cooperatives. For more information, please visit

About Miller Construction Company 
Miller Construction Company is a full-service electrical contracting company, providing deep expertise and services throughout the Midwest in overhead transmission and distribution, along with emergency storm restoration services, nationwide. Miller also provides extensive in-house project management and estimating, along with vegetation management and electrical testing services.

The Vincennes, Indiana-based third-generation family business is a certified Women Business Enterprise (WBE) and possesses a long history of exceptional safety, exceeding customers’ needs, and deeply caring for their employees and their communities. For more information, please visit

About Intren (PDF)
About Miller (PDF)
Acquisition FAQ (PDF)
Press Release (PDF)