Organizations/Instructors are listed with offerings in the following order:
COUNTRY
State
City

AUSTRALIA

New South Wales

PermaForest Trust
Water-harvesting, permaculture, and regenerative design.
www.permaforesttrust.org.au

Permaculture Research Institute of Australia
Water-harvesting, permaculture, and regenerative design.
www.permaculture.org.au

Darren Doherty
Keyline, water-harvesting, permaculture, and regenerative design.
www.permaculture.biz

John Champagne
Water-harvesting, permaculture, and regenerative design.

Robyn Francis, Djanbung Gardens
Water-harvesting, permaculture, and regenerative design.
www.permaculture.com.au

The Crossing Land Education Trust
Permaculture.
thebegavalley.org.au/thecrossing.html

Michael Mobbs
Sustainability Coach.
www.sustainablehouse.com.au

Queensland

Janet Millington
Permaculture and permaculture education
miltech@bigpond.com

Victoria

David Holmgren
Water-harvesting, permaculture and regenerative design.
www.holmgren.com.au

Dr. Peter Coombes
Director of the Bonacci Group of expert environmental engineers, water harvesting, water-sensitive urban design.
www.bonacciwater.com

Western Australia

Josh Byrne
Permaculture design.
www.joshbyrne.com.au

UNITED STATES

American Rainwater Catchment Systems Association (ARCSA)
Rainwater harvesting.
www.arcsa.org

Arizona

Prescott
ECOSA Institute
Water harvesting, permaculture.
www.ecosainstitute.org

Skywater LLC
Water harvesting, green building, sustainability and landscape design.
skywaterarizona.com

High Desert Rain
Water harvesting, permaculture.
www.highdesertrain.com

Tucson
Watershed Management Group, Inc
Water harvesting and more.
www.watershedmg.org

Sonoran Permaculture Teachers Guild
Water harvesting, permaculture, regenerative design.
www.sonoranpermaculture.org

California

True Nature Design
A full service design and education company headed by Warren Brush (founder of Quail Springs Permaculture and Casitas Valley Farm and consultant for USAID work in Africa). Offering comprehensive design services for regenerative agroecosystem development for efficiency and resiliency for small homes, communities, and larger bioregions, as well as courses in permaculture design, rainwater harvesting, greywater design, community development, and earthworks for resiliency around the globe.
www.permaculturedesign.us

Quail Springs Permaculture
A non-profit education and demonstration site for regenerative human settlement and dryland agricultural systems. Their educational offerings include permaculture design for people working in international development and humanitarian aid, permaculture certification, natural building, watershed restoration, peacemaking, and various wilderness and farm skills classes.
www.quailsprings.org

San Diego Sustainable Living Institute 
SDSLI offers a wide range of classes with a holistic curriculum. Courses are taught by experts in each field and are catered towards student understanding and enjoyment. Some of the subjects and topics taught are: permaculture, water harvesting, soils, organic gardening, animal husbandry, appropriate technology, natural building, and homesteading. Consultation & design services and green-job training are also available.
www.SDSustainable.org

WhollyH2O
This site is a comprehensive information center for efficiency, rainwater, graywater, stormwater and black water management, capture and reuse.  You can find Products and Services from around the state and country, links to Rebates and Incentives, a Calendar of statewide water events, Tips, Best Practices, Demonstration Projects, Films, Blogs, an Art Gallery, and much more.
www.whollyh2o.org

Greywater Action, formerly known as Greywater Guerrillas
Greywater and rainwater harvesting workshops.
greywateraction.org

G³
Low Impact Design (LID) landscapes
www.g3la.com

Occidental Arts and Ecology Institute (OAEC)
Water harvesting, permaculture, regenerative design.
www.oaec.org

Regenerative Design Institute
Water harvesting, permaculture, regenerative design.
www.regenerativedesign.org

Water Recycle
Water Recycle implements rainwater harvesting and gravity-fed greywater systems to create regenerative landscapes. Greg Bullock founded the organization and has installed more than a dozen projects to date in California (spring 2011), and has recently been recognized as the first official affiliate of Greywater Action for Southern California based on his experience, commitment to education and volunteerism.
www.waterrecycle.net

Colorado

Boulder
Real Earth Design
Offering innovative planning and design for developing whole-site master plans, basic consultations, and technical details on green infrastructure projects to restore and regenerate spaces from urban neighborhoods to rural agroecosystems.
www.realearthdesign.com

New Mexico

Craig Sponholtz/Dryland Solutions
Watershed restoration, water harvesting, consulting services, educational programs and workshops.
www.drylandsolutions.com

San Isidro Permaculture
A design and installation company focused on water catchment, greywater systems, native and edible plant landscapes, erosion control, and land restoration.
www.sipermaculture.com

Permaculture Institute
Water harvesting, permaculture, regenerative design.
www.permaculture.org

Quivira Coalition
Water harvesting.
www.quiviracoalition.org

Soilutions
Albuquerque-based installer of and consultant for custom-built and larger integrated-water-harvesting systems.
soilutions.net
jim@soilutions.net

North Carolina

EcoLogic
Regenerative-systems design services. Ask them about discounts for larger jobs, and their referral bonus as well.
janell@ashevillage.org