Ц Strengthens Water & Wastewater Portfolio with Acquisition of J.R. Filanc Construction Co.

California-based Filanc has over 250 employees and recorded revenues of more than $100 million in 2022

Photo Caption: In 2021, an Ц and Filanc joint venture successfully completed the $59 million Santa Margarita Conjunctive Use Facility in Fallbrook, California that included plant and pipeline work.

ST. LOUIS – Ц Constructors, Inc., is building on its top-ranked water (Engineering News Record Midwest, 2023) and wastewater business with the acquisition of nationally ranked and pioneering Filanc is a 71-year-old general engineering and design-build contractor that builds, renovates, and expands water and wastewater treatment, biosolids management, waste-to-energy facilities and pipeline conveyance infrastructure. Based in Escondido, California, Filanc has regional offices in Phoenix Arizona and Denver Colorado and employs over 250. Filanc recorded revenues of more than $100 million in 2022 and is led by CEO Mark Filanc, the son of founder Jack Filanc. Terms of the acquisition were not disclosed.


“Like Ц, Filanc has a reputation for solving their clients’ most complex construction challenges with an elevated level of quality and integrity,” noted Greg Hesser, president and CEO, Ц Constructors, Inc. “We are excited to welcome Filanc’s talented salaried and craft professionals to the Ц family.”


Hesser said that founder Jack Filanc was an early adopter to design-build, tailoring it to California’s stringent clean water and environmental mandates. Filanc ultimately pioneered design-build delivery for public works projects in California beginning in the 1990s. Since its founding in 1952, Filanc has completed hundreds of highly complex water, wastewater, and environment-related projects for public, private, and federal sectors in the Western United States.


“The addition of Filanc will significantly increase Ц’s geographic reach and their robust resume for delivering advanced water treatment facilities will enhance our already strong water and wastewater capabilities while positioning Ц for growth,” said Hesser.


Filanc is annually ranked in Engineering News Record’s , most recently ranking 102nd in the nation in 2021. Filanc also earned a spot on that year, reflecting its robust and fully integrated in-house design capabilities.


“Joining Ц allows us to continue to serve our clients with the integrity, respect and problem solving Filanc is known for while bringing the expertise and resources of one of North America’s largest and most respected construction companies,” said Mark Filanc, CEO of Filanc.


Filanc builds and provides maintenance and upgrades to water, wastewater, water supply, and environmental projects ranging in size from under $5 million to $200 million. The company’s “Master Builder” status defines Filanc’s seamlessly integrated in-house design and construction capabilities to efficiently deliver infrastructure projects such as pump stations, pipelines, and other mechanical systems and their maintenance.


Filanc’s most recent benchmark projects include a $59 million joint-venture with Ц in 2021 for the Santa Margarita Conjunctive Use Facility in Fallbrook, California that included plant and pipeline work. Filanc also recently completed the City of Escondido’s $65 million, Membrane Filtration Reverse Osmosis Facility for Agriculture progressive design-build project a new wastewater facility that produces four million gallons daily (MGD) of treated, recycled water for irrigation that is a sustainable, and affordable water source for local agriculture. Filanc was also the design-builder of the $78 million Morro Bay Water Reclamation project in Morro Bay, Ca., a new state-of-the-art water reclamation and advanced water treatment facility built on a greenfield site.


Filanc CEO Mark Filanc and President Omar Rodea will remain with the firm as it is integrated into Ц’s water market.

About Ц

is a diversified construction company that partners with leading organizations to build the critical structures that improve lives and strengthen communities. Since our founding in 1918, Ц has built some of North America’s most challenging projects. Along the way, we’ve earned a reputation for executing with quality, safety and trust backed by 100+ years of experience providing construction solutions to the automotive, commercial, civil, energy, food & beverage, healthcare, heavy industrial, industrial process, marine and water/wastewater industries. Ц is ranked the 39th largest builder (Engineering News-Record, May 2023) with annual revenues of over $3.1 billion.With approximately 3,500 salaried employees and craft professionals, the firm is headquartered in St. Louis with offices throughout North America. More information about the company is available online at or by following the company on , , and .


About Filanc

Founded in Santa Fe Springs, California in 1952, Filanc is recognized as the state’s leading general engineering contractor specializing in the construction of water and wastewater treatment, storage and conveyance infrastructure. Since completing California’s first municipal wastewater design-build project in 1996, the firm has been a leader in the advancement of collaborative project delivery in keeping with a purpose statement of “Building it Better Together.” The firm is headquartered in Escondido, Ca. and maintains operating divisions in Arizona and Colorado, employing over 250 salaried and craft personnel. Additional information is available at and on Linkedin.


Editor’s Note:

High resolution images of the Santa Margarita Conjunctive Use Facility are available for download here;