Aerated Compost Systems

For Every Type of Organic Waste; for Every Scale of Operation; And For Every Budget

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All of our composting systems are designed to be simple to operate, with a focus on “chore efficiency”.
With aerated composting, turning the pile is unnecessary; in fact, turning the pile impedes the composting process.

All of our composting systems convert raw organic residuals into stable compost in roughly 60 days, yielding a nutrient-rich product that is effectively free of pathogens, parasites and weed seeds. In addition, our composting systems mitigate impacts to surface and ground water resources, significantly reduce vectors (i.e., flies, birds, rodents and larger wildlife), and eliminate offensive odors.

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Featured Project

Meadow Ridge Farm

Redmond, WA

Before bringing her horses home, Terry S. researched manure disposal methods and found our website. She has five horses using a 50:50 mix of pellets and compost for bedding. The finished compost is also used as fertilizer. Terry says "Using the compost mixed with the pelleted bedding has drastica...

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Featured Project

Far Cry Farm

Harrodsburg, KY

Karen H. installed the O2Compost Benchmark System because "we had a big pile of poop that was unsightly and bred flies." Her system composts manure and cardboard bedding from five horses. The finished compost is spread on the pasture and used in the garden beds. Karen recommends building enough b...

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Featured Project

Hilltop Farm

Carpinteria, CA

Evan M. wanted to be a better steward of the land. He found O2Compost during his search for sustainable and efficient ways to handle the waste generated on his farm: horse manure and bedding, leftover hay, yard waste from landscaping, mulch from avocado operations, and food waste. He composts the...

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Featured Project

North Wind Farm

Caledonia, WI

In a move to become more environmentally friendly, Melita B. and her husband built this Micro-Bin system to manage the manure and pine pellet bedding from their four "amazingly wonderful mares". The finished compost will be used in her vegetable garden and as stall bedding. The O2 Compost system ...

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Featured Project

Right Lead Farm LLC

Trout Lake, WA

Allyson B. owns two horses and boards six more. In her words, "that's a lot of manure". After boarding her horses at many show barns and experiencing the hard work of a poor manure disposal system, she was "keen to follow Peter's prescription for success". She tested our smallest Micro-Bin System...

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See what this equine owner has to say about her O2 compost system:

Compost 101

Take action toward establishing sustainable business practices, to benefit urban and agrarian communities worldwide.

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Our Global Growth: ASP Composting Systems in 29 Countries & 49 States

Monday, July 7, 2025

Turning Organic Waste into a Valuable Natural Resource At O2Compost, our mission has always been clear: teach the art and science of aerated composting, and to empower individuals and organiza...

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We will contact you to schedule a time to talk about your specific needs and to answer all of your questions about composting. We look forward to hearing from you!

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