RCM History

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Founded in 1982, RCM Digesters designs and builds cost-effective, efficient and durable anaerobic digester systems based on proprietary technology and expertise. A pioneer in the industry, RCM Digesters provides a relatively simple solution for waste management and energy production for both family farms and large regional waste centers. The privately held company is headquartered in Oakland, CA, and the more than 100 RCM systems operating around the globe all use equipment manufactured in the U.S.

RCM has received four state and national environmental awards. A leading authority in the industry, RCM Disgesters Founder Mark Moser has served as a consultant for the U.S. Environmental Protection Agency, the Department of Energy and AgSTAR.

Almost half of the operating digesters in the U.S. were build by RCM. RCM’s first digester, built in Durham, CA, the year the company was founded,  is still in operation today.

History – Overview

When Mark Moser founded RCM Digesters in 1982, anaerobic digestion was still in its commercial infancy. Digester technology has been around since ancient times. Although the science had been proven in academic lab settings and was used by some municipalities, there weren’t easy options available for farms or factories. His leadership has transformed – and largely created – the anaerobic digester industry.

Over the past 30 years, RCM has been a pioneer in many leading agricultural and clean energy sectors. We have integrated the knowledge and cultural bases of farming, agricultural science and renewable energy policy making. Nationally and internationally, RCM’s work  has enabled the company to provide true global perspectives for clients with business interests that transcend countries and regions. In addition to working in more than a dozen states in the U.S., RCM has provided consulting services in Armenia, Australia, Belize, Canada, Chile, China, Colombia, Costa Rica, Ecuador, Ireland, Italy, Japan, Korea, Mexico, Philippines, Spain and Taiwan.

RCM developed many of the new business models that have emerged to form successful companies, even entirely new market segments.


1982 – 1985 – RCM Digesters founded, based on the name Resource Conservation Management. First codigestion system built at Langerwerf Dairy in Durham, CA, for 500 cows and food waste. Thirty years later, the Plug Flow digester is still in successful operation. Within a year, RCM has built a Plug Flow digester at Frey Dairy in Conestoga, PA, for its 600 cows. Two more systems begin operation in Lodi, CA, and Gonzales, CA, in 1985.

1986 -1989 – RCM’s Complete Mix system debuts at DJ Acres in Seven Valleys, PA.  The ground-breaking design was designed to optimize energy production. At DJ Acres, the 150 kilowatt system was used to heat farm buildings by handling the waste of up to 18,000 hogs. RCM’s first international projects began with Complete Mix systems installed in Ireland (1988) and two locations in Japan (1989).

 1990sComplete Mix, Covered Lagoon and Plug Flow systems are built by RCM across the US , including locations in California, Colorado, Connecticut, Iowa, Minnesota, New York and Oregon. A Complete Mix digester is designed and constructed at Seoul National Technical University for research purposes. During this time, RCM began its long-standing partnership with the farm credit association AgStar.

2000-present – RCM’s projects include a growing number of regional centers, including Port of Tillamook Bay in Oregon and Santiago, Chile. Codigestion plants that handle a variety of waste materials become increasingly popular, particularly in the dairy businesses in Pennsylvania and New York.

2012-present – RCM partners with Australia and New Zealand-based Quantum Power Limited as a technology partner to form RCM Digesters (Australia) Pty Ltd, a subsidiary of California based RCM International LLC. A number of digester systems for livestock production facilities in Australia are under construction or in planning stages.