- Atlantic Chapter
- John Denovan
- City of Fredericton - PO Box 130
- Fredericton, NB E3B 4X7
- Canada
- 506.460.2294 p
- 506.460.2293 f
- Email:john.denovan@fredericton.ca
- Australia Chapter
- Doug Sharp
- PO Box 76
- Edwardstown, SA 5039
- Australia
- 61-88340-4911 p
- 61-88340-4909 f
- Email: dougs-hrt@nmit.vic.edu.au
- Austria Chapter
- Ing.Karl-Heinz Walzer
- Bentheimstrabe 11
- A-1210 Wien
- Austria
- Email: isa-austria@inmedias.at
- Belgium Chapter
- Koen Linskens
- Ijzerstraat 26
- Aalter, Belgium B-9880
- 0032-478-47-45-67 p
- 0032-9-325-02-08 f
- Email: koen.linskens@baas-isa.be
- Brazil Chapter
- Czech Chapter
- Denmark Chapter
- Lars Norholm
- Kirkeltevej 128
- DK-3450 Allerod
- Rolighedsvej 23, 2
- Denmark
- 011.45.26.221150 p
- Email: lars@noerholm.dk
- Dutch Chapter
- Els Couenberg
- JF Berghoefplantsoen 11
- Amsterdam DE 1064
- The Netherlands
- 0031-622102527 p
- Email: silversan@gmail.com
- French Chapter
- Bruno Regnal
- La Sabliere
- Manaurie 24620
- France
- 011.0033.553.335.1332 p
- Email: bruno.reynal1@libertysurf.fr
- Paul O'Regan
- 47360 Prayssas
- France
- 011.33.553.959360 p
- Email: paulor@wanadoo.fr
- Florida Chapter
- Bruce Smith
- 5657 Creekwood Circle
- Sarasota, FL 34233
- 941-323-8725 p
- 941-378-5566 f
- Email: bruce@northamericantrainingsolutions.com
- Germany Chapter
- Hordtslv. 20-22
- Heidelberg 69126
- Germany
- 48-6221-79402221 p
- Email: baum@isa-arbor.de
- Illinois Chapter
- Norman S. Hall
- 2371 S. Foster Ave.
- Wheeling, IL 60090
- 847.394.4220 p
- 847.394.3376 f
- Email: nhall@thecareoftrees.com
- Indiana Chapter
- Greg Mills
- 2619 Corydon Pike
- New Albany, IN 47150
- 502-905-8127 p
- 812-948-1958 f
- Email: arbordoc@prodigy.net
- Italy Chapter
- Stefano Lorenzi
- Via Verdi - 9 Clivio
- Varese 21050
- Italy
- 1139-0332486063 p
- 1139-0332334275
- Email: stlorenzi@infinito.it
- Kentucky Chapter
- Roger Martin
- 10804 Hollyview Court
- Louisville, KY 40299
- Email: roger.martin@insightbb.com
- Michigan Chapter
- Wesley Tregilgas
- Tregilgas Tree Service
- PO Box 127
- Linden, MI 48451
- 810-735-6982 p
- 810-735-5352 f
- Email: wesley@tregilgastreeexperts.com
- Mid-Atlantic Chapter
- Nancy Herwig
- PO Box 1200
- Haymarket, VA 20169
- 703-753-0499 p
- 703-753-0869 f
- Email: macisa@hughes.net
- Midwestern Chapter
- Tim Crews
- Ryan Lawn & Tree-Springfield
- 2296 N Arbor Creek Ln
- Springfield, MO 65802
- 417.865.1600 p
- Email:timcrews@ryanlawn.com
- Minnesota Chapter
- Lynn Wells
- 2527 Clackson St NE
- Minneapolis, MN 55418
- 612-789-9255 p
- 612-789-9472 p
- Email: lynn@northeasttree.net
- New England Chapter
- William Conn
- 2990 Broad Street
- Port Henry, NY 12974
- 802-282-2299 p
- 802-233-6650 f
- Email: lorax93@yahoo.com
- New Jersey Chapter
- Steve M. Chisholm
- P.O. Box 1197
- Jackson, NJ 08527-0255
- 732.928.5747 p
- 732.928.6608 f
- Email:aspentree1@hotmail.com
- New York Chapter
- Joel Greifenberger
- Valley Tree & Landscape Service
- 441 E. Beech St.
- Long Beach,NY 11561
- 516.889.7534 p
- 516.889.4562 f
- vlytree@yahoo.com
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- New Zealand Chapter
- Mark Armistead
- 24 Athena Ave
- Papamoa, Tauranga 3318
- New Zealand
- 07-5420163 p
- 07-5788192 f
- marka@asplundh.co.nz
- Norway Chapter
- John A.H. Coles
- Gomnesveien 200
- Royse, Norway 3530
- 0047-91796771 p
- didjon@online.no
- Ohio Chapter
- Tommy Williams
- City of Columbus Recreation & Parks - Forestry Div.
- 1533 Alum Industrial Dr West
- Columbus, OH 43209
- 614.645.6649 p
- 614.645.3384 f
- tewilliams@columbus.gov
- Ontario Chapter
- 200 Consumers Road, Suite 701
- Toronto, ON M2J 4RR
- Canada
- 419-493-7022 p
- 416-493-4608 f
- info@isaontario.com
- Pacific Northwest Chapter
- Bryce Landrud
- 31813 - 44th Avenue South
- Auburn, WA 98001
- 253-288-8733 p
- 253-735-8864 f
- Email: bryce@thunderingoak.com
- Penn-Del Chapter
- James Savage
- 17 Tyson Building
- University Park, PA 16802
- 814-863-77197 p
- jes10@psu.edu
- Prairie Chapter
- Laurie Newsham
- Olds College
- 4500 - 50th Street
- Alberta ,AB T4H 1R6
- Canada
- 403.556.4750 p
- 403.556.4713 f
- lnewsham@oldscollege.ca
- Quebec Chapter
- Natalie Vezina
- P.O. Box 69042
- Laval,QC H7X 3M2
- Canada
- 450.689.9393 p
- 450.689.9372 f
- info@siaq.org
- Rocky Mountain Chapter
- Ernie Wintergerst
- 1132 Princeton Drive
- Longmont, CO 80501
- 303-651-8446 p
- 303-651-8759 f
- ernie.wintergerst@ci.longmont.co.us
- Southern Chapter
- Brian Maxson
- 5808 Triangle Drive
- Raleigh, NC 27617
- 919-796-1495 p
- bmaxson@bartlett.com
- Spanish Chapter
- Stihl Representative
- John Keeler
- 757.486.9395 p
- john.keeler@stihl.de
- Swedish Chapter
- Thilo Beeker
- Box 170 63
- 10482
- Stockholm
- Sweden
- 46-704253234 p
- 49-12120248013 f
- nordictreecare@gmx.com
- Texas Chapter
- James Tuttle
- Tree Loving Care
- 3304 66th Street
- Lubbock, TX 79407
- United Kingdom/Ireland Chapter
- Alexander Laver
- 45 Halifax Cresent
- Sculthorpe
- Norfolk NR21 7PS
- England
- 0778-2131258 p
- atlaver@btinternet.com
- Utah Chapter
- Max Darrington
- PO Box 709252
- Sandy, UT 84070-9252
- 801-360-6027 p
- 801-446-8227 f
- mld4@email.byu.edu
- Western Chapter
- Jose Mercado
- 31883 Success Valley Drive
- Porterville, CA 93257
- 559-784-8733 p
- 559-784-8711 f
- fallenleaftree@comcast.net
- Wisconsin Chapter
- Michael J. Wendt
- 12290 W White Oak Dr
- Greenfield,WI 532281050
- 414.543.1131 p
- treeguy@wi.rr.com
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