Helsinki memiliki hubungan kerjasama khusus dengan:
* {{flagicon|PRC}} [[Beijing]], Tiongkok ''(sejak 2006)''<ref name="Beijing — Helsinki twinning">{{cite web|url=http://www.gov.cn/misc/2006-07/14/content_336339.htm|title=Beijing, Helsinki forge sister city relationship|accessdate=5 August 2013|last=Yan|first=Yangtze|date=14 July 2006|work=Chinese Government|publisher=[http://www.gov.cn/ Chinese Government Official Portal]|archive-date=2019-10-09|archive-url=https://web.archive.org/web/20191009105714/http://www.gov.cn/misc/2006-07/14/content_336339.htm|dead-url=yes}}</ref><ref name="Beijing twinnings">{{cite web|url=http://www.ebeijing.gov.cn/Sister_Cities/Sister_City/|title=Sister Cities|publisher=Beijing Municipal Government|accessdate=23 June 2009|archive-date=2010-01-17|archive-url=https://www.webcitation.org/5mq6B2fdq?url=http://www.ebeijing.gov.cn/Sister_Cities/Sister_City/|dead-url=yes}}</ref><ref name="partner-cities">{{cite web|url=http://www.hel.fi/hki/Kansainvalinen/en/Partners+and+Networks|title=Partners and Networks|work=Hel.fi (international section)|publisher=City of Helsinki|accessdate=26 February 2015|archive-date=2016-03-03|archive-url=https://web.archive.org/web/20160303212642/http://www.hel.fi/hki/Kansainvalinen/en/Partners+and+Networks|dead-url=yes}}</ref>
