Healing Scents Holistic Clinic and Training Centre
- Aromatherapy Diploma with two modules that may be completed through self-paced home study. Located in Victoria, B.C.
- http://www.vancouverislandaromatherapy.com/aromatherapydiploma.htm

The School of Natural Health Sciences
- This UK based school offers a basic course and an Advanced Aromatherapy Diploma.
- http://www.naturalhealthcourses.com/home.htm

Australasian College of Health Sciences
- Offers nationally accredited distance education certification courses in aromatherapy and many other areas of alternative healthcare. Located in Portland, Oregon.
- http://www.achs.edu/

Essence Journeys
- Provides a six-week introductory course through e-mail. Based in Hawi, Hawaii.
- http://www.lightbodypath.org/aromacourse.html

Spring Renewal
- Offers a self-paced home study course with 24 lessons and a final exam and project. Based in Saugatuck, Michigan.
- http://www.springrenewal.com/Home%20Study%20Course.htm

The Institute for Integrative Healthcare Studies
- Several CEU home study classes are presented, including a 40-hour Aromatherapy Essentials course.
- http://www.integrative-healthcare.org/

Michael Scholes School for Aromatic Studies
- Options include four different courses, and a 300-hour diploma program, all available through home study. Based in Marina Del Rey, California.
- http://www.labofflowers.com/michaelhomestudy.html

West Coast Institute of Aromatherapy Inc.
- Three home study courses are offered, covering basic to advanced topics. Based in British Columbia, Canada.
- http://www.westcoastaromatherapy.com/

Essential Oil Resource Consultants
- Offers Advanced Clinical Aromatherapy through distance learning, a three-level research-based course that combines both French and English methods.
- http://www.essentialorc.com

Pacific Institute of Aromatherapy
- Distance learning options include an International Certification Course, and a three-part Masters Series. Based in San Rafael, California.
- http://www.pacificinstituteofaromatherapy.com/

Essential Training Solutions Ltd
- Aromatherapy, reflexology and anatomy and physiology revision/reference packages on CD ROM. Paper alternatives also available. Located in England.
- http://www.essential-training.co.uk

Australasian College of Natural Therapies
- Offers a home study foundations course, and courses in other natural therapies. Located in Sydney, Australia.
- http://www.acnt.edu.au/courses/distance/#Aromatherapy

Nature Care College
- College of natural therapies in Sydney, Australia, offering distance learning courses in aromatherapy and other modalities.
- http://www.naturecare.com.au

Atlantic Institute of Aromatherapy
- A practitioner course and an advanced studies course are offered. Located in Tampa, Florida.
- http://www.atlanticinstitute.com/

Atwood Institute for Research and Education
- Clinical Aromatherapy certification in both residential and home study formats. Located in Glendale, Arizona.
- http://www.starlighter.com/atwood/

Aromanet
- Offers classes live and by correspondence, including certificate, advanced diploma, spa, and nurse programs. Located in Ontario, Canada.
- http://www.aroma.net/index.html

The Kevala Centre
- Distance learning Aromatherapy Diploma Course, consisting of 12 modules covering topics such as history, neurology, massage, acupressure, and consultation. Located in the United Kingdom.
- http://www.kevala.co.uk/courses/aromatherapy.htm

Aroma Studio
- Home study certification courses available at three levels, as well as a teacher training course. Located in New York.
- http://www.aromastudio.com/