If you know of any others that are not mentioned, please leave a comment and they will be added to the list. This is not an endorsement of these teas, tea companies, or tea vendors, it is simply a list.
United States of America:
Detroit Zen Center
The source and harvest year is unknown but the site says the green tea is all hand picked. (site is back up)
Green Tea:
Bright Eyes (saejak)
Buddha's Choice (grade unspecified- likely ujeon)
Fava Tea Company
This company offers one Korean tea. Currently, its source, production, harvest year, and grade are unknown.
Green Tea:
South Korean "Yun"
Good Green Tea
These guys are affiliated with Hankook Tea (see below) and sell most of Hankook's selection of Korean teas. The tea is priced the same or a dollar or two cheaper than Hankook, is shipped free, comes with free samples, and 5% of all sales are donated to Unicef. They have just started to carry Ssang Kye tea. They have 2011 stock in all of their teas they stock but be sure to specifically ask for it when placing your order.
Green Tea:
Sejak (Premium) Green Tea (same as Hankook's Organic Chut Mool Green Tea)
Ujeon Gamro Green Tea
Gamnong Green Tea (Ujeon)
Teuk Seon Green Tea (Saejak)
Jeong Seon Green Tea (Daejak)
Ssangkye Jongno (Jungjak)
Ssangkye Roasted Sajack
Balhyocha (Semi-oxidized Tea):
Oolong Tea (same as Hankook's Hwang Tea (Yellow Tea))
Ssangkye Black Tea Sejack
Powdered Green Tea:
Gamnong Matcha (Powdered Green Tea)
Hancha Tea
Currently the region, grade, and harvest year of these Korean teas are unknown.
Green Tea:
Early Summer Jakseol
Lux Green
Misty Green
Balhyocha (Semi-oxidized Tea):
Amber Gold
Hankook Tea Company
The only Korean company to set up shop in the West. They Produce their own tea from their own tea gardens most of which are around the Gwangju area. They sell their tea in Department stores as well as in their own shops in Korea and L.A.. They carry two lines of tea- one carrying the highest Korean organic certification and the other their traditional offering. Their teas don't always specify which specific garden they came from.
Green Tea:
Organic Gamnong Green Tea (Ujeon)
Organic Chut Mool Green Tea (Saejak)
Organic Doo Mool Green Tea (grade not specified so likely Jungjak or Daejak)
Ujeon Gamro Green Tea
Gamnong Green Tea (Ujeon)
Teuk Seon Green Tea (Saejak)
Jeong Seon Green Tea (Daejak)
Balhyocha (Semi-oxidized Tea):
Hwang Tea (Yellow Tea)
Powdered Green Tea:
Gamnong Matcha
These guys source their tea from famous tea producer Dong Cheon, a tea cooperative of 88 farmers in the Ssangkye tea producing area. The tea is picked by hand then standardized production methods are used including the Jung cha method. This tea is true semi-wild tea. They currently offer 2011 teas. These same teas are also offered by Tea Trekker. You can get a hold of them through the contact info on their blog.
Green Tea:
Saejak
Jungjak
Daejak
Balhyocha (Semi-oxidized Tea):
Dan-cha (hong cha)
Shan Shui Teas
These guys buy a variety of popular, reputable Hadong and Ssanggye area teas (such as Ssang Kye and Koryeo) from well known and established Korean producers and sell them for a mark-up on their site. Currently they have a nice selection of 2011, 2010, 2009, and 2008 teas in stock.
Green Tea:
Tokpoom Goryeo (Premium Ujeon)
Woojeon Goryeo (Ujeon)
Saejak Goryeo
Saejak Ssanggye
Joongjak Ssanggye (Jungjak)
Joongjak Goryeo (Jungjak)
Balhyocha (Semi-oxidized Tea):
Woojeon Cheongcha (Ujeon)
Teokseon Cheongcha Goryeo (premium Ujeon)
Tea Trekker
What is left from their 2010 teas are sourced from Dong Cheon, a tea cooperative of 88 farmers in the Ssangkye tea producing area. The tea is picked by hand then standardized production methods are used. This green tea is true semi-wild tea produced using the jeung cha method (East Teas sells the same tea). Currently, they have 2010 teas in stock and 2011 teas in stock.
Green Tea:
Sejak (2010)
Sejak (2011)
Jungjak (2010)
Jungjak (2011)
They source teas right from two teamasters who make them in Hwagae Valley, Hadong- Kim Jong Yeol (Butea) and Kim Shin Ho (Samtae). Currently, they have 2009 Bal Hyo Cha (Korean yellow tea) and 2010 green teas in stock.
Green Tea:
Saejak (Teamaster Kim Shin Ho)
Saejak (Teamaster Kim Jong Yeol)
Jungjak (Kim Shin Ho)
Balhyocha (Semi-oxidized Tea):
Balhyocha (Teamaster Kim Shin Ho)
Balhyocha (Teamaster Kim Jong Yeol)
DavidsTea
This is one of Canada's "Big Three" tea chains- the first tea chain store to offer Korean Tea in North America. Their tea is sourced from a farmers co-op on Jeju Island where it is at least partially machine produced. The current tea they sell is from the 2010 harvest.
Green Tea:
Korean Sejak
European Online Korean Tea Vendors
Czech Republic:
Bily Jerab
They sell real semi-wild Jiri mountain tea produced by famous teamaster Shin Gwang-su. Currently one is unsure wether they take international orders. The harvest year of these teas are currently unknown.
Green Tea:
Shin Gwang-su Seikou
Shin Gwang-su Sumi
Shin Gwang-su Sunsumi
Nokcha (grade and region unspecified)
Dobra Cajovna
They source their tea from established producers in the Jiri Mountain area. They have two teahouses in the USA that carry these teas. They are currently sold out of all Korean tea.
Green Tea:
Nokcha (Jungjak- sold out)
Jookro Seajak (sold out)
Darjeeling.cz
They source Hadong, Ssanggye area tea right from small producers. They are also starting to carry Dong Cheon teas. Currently, they only stock 2011 teas.
Green Tea:
Ujeon Jakseolcha- Sparrow's Tongue (sold out)
Nokcha Sejak
Dong Cheon Nokcha Daejak
Balhyocha (Semi-oxidized Tea):
Hwang Cha- Yellow Tea
Tea Mountain
These guys carry 2011 teas from Hwagae Valley producers- Kim Jong Yeol (Butea) and Kim Shin Ho (Samtae). These teamasters 2009 and 2010 teas are found at Dao Tea. Recently, they have also stocked Jukro's cake "Tong E Cha" balhyocha.
Green Tea:
Saejak Butea (Kim Jong Yeol)
Saejak Samtae (Kim Shin Ho)
Jungjak Butea (Kim Jong Yeol)
Balhyocha (Semi-oxidized Tea):
Balhyocha Saebyeok Hyanggi "Sunrise" (Kim Jong Yeol)
Balhyocha Noeul Hyanggi "Sunset" (Kim Jong Yeol)
Hwagae Uricha Tongecha (Jukro)
England:
East Teas
They source their Ujeon tea from Dong Cheon, a popular Ssanggye area tea producer. The Ujeon they sell is true semi-wild tea produced using the jeung cha method (Tea Trekker sells the same tea). The Saejak is sourced from Boseong. These teas are the same as Postcard Teas below. Believe their stock is currently 2010 teas.
Green Tea:
Sparrow's Tongue (Jiri Mountain, Ujeon)
Nokcha (Boseong, Saejak)
Balhyocha (Semi-oxidized Tea):
Hongcha (Region not specified)
Postcard Teas
They source their Ujeon tea from Dong Cheon, a popular Ssanggye area tea producer. The Ujeon they sell is true semi-wild tea produced using the jeung cha method (Tea Trekker sells the same tea). The Saejak is sourced from Boseong. These teas are the same as East Teas above. Believe their stock is currently 2010 teas.
Green Tea:
Sparrow's Tongue (Jiri Mountain, Ujeon)
Nokcha (Boseong, Saejak)
CoreaColor
These guys buy a variety of popular, reputable Hadong and Ssanggye area teas (such as Jo Tae Yeon Jookro and Woon Sang) from well known and established Korean producers and sell them for a mark-up on their site. Currently, they stock some 2010 but mainly 2011 teas.
Green Tea:
Juk Woojeon 80 (Ujeon)
Juk Woojeon 40 (Ujeon)
Woonsejak 80 (Saejak)
Woonsejak 40 (Saejak)
Juk Jungjak
Balhyocha (Semi-oxidized Tea):
Uricha
Gayacha
Le Palais Des Thes
This was probably the first online Westren tea vendor to sell Korean tea. They only carry one Korean tea, Jukro's balhyocha. They have been carrying this famous Korean yellow tea for years.
Balhyocha (Semi-oxidized Tea):
Jukro Black Tea (Balhyocha)
Korea:
Antique Alive
These guys operate an exclusively web based store in Korea. They export a lot of Korean things. Some of these things are Jirisan and Hwagae Valley Korean green tea. They buy from famous producers (such as Woon Sang) and sell them at a markup. CoreaColor (above) also sells Woon Sang tea. Believe their stock is currently 2010.
Green Tea:
Jirisan Ujeon
Jirisan Saejak
Jirisan Jungjak
Jirisan Daejak
Hwagae Valley Ujeon
Hwagae Vally Saejak
Korean Arts
Korean Arts, an exclusively internet based business, exports a bunch of different Korean stuff including boxes of O'sulloc tea (see below). The Se-jak that Korean Arts sells is an O'sulloc premium tea, the other three are generally sold at Korean supermarkets and are not available on the O'sulloc English webpage for purchase. Believe their stock is 2010.
Green Tea:
Se-jak (Se-jak grade) TG002S (Sejac, see below)
Jak-seol (Jung-jak grade) TG003O (Sulloc Jaksul Okrok)
Man-su (Dae-jak grade) TG004M (Sulloc Jaksul Dukgum)
Halla (Dae-jak grade) TG004H (Sulloc Jaksul Jeungjae)
O'sulloc
This is the largest tea producer in Korea and just recently started selling tea to International customers over the internet and apparently has now stopped. This tea is grown primarily grown on Jeju Island and is completely machine processed. Will leave the below names for reference although the links no longer work.
Green Tea:
Okro (shade Grown)
Ujeon
Sejac (Saejak)
Ouksujin (grade unspecified)
Balhyocha (Semi-oxidized Tea):
Seonhyang (lightly oxidized)
Woonhyang (medium oxidized)
Samdayeon (post fermented)
See these posts & comments for more information on the grading system of Korean tea (Ujeon, Saejak, Jungjak):
Categorizing Korean Green Teas: Why We Categorize
Satisfying Marshaln
See these posts for more information on the three main tea producing regions of Korea:
Three Main Tea Producing Areas In Korea: Boseong
Three Main Tea Producing Areas In Korea: Jeju Island
Three Main Tea Producing Areas In Korea: Jiri Mountain
Disambiguation of Jiri Mountain Tea
Edited on Jan.24/2012
Peace