Similar channels are defined by the intersection of subscribers. The more subscribers two channels have in common, the more similar they are. In free version of the service you can see only top 15 similar channels.

Channels similar to USGS

#	Channel	Category	Country	Language	Subscribers	Views	# videos	Created
1	NASA	Knowledge Society			12.1M	1.06B	5,853	2008-06
2	HISTORY	Entertainment Knowledge Movies TV shows	United States 🇺🇸		13.6M	4.59B	10,048	2006-08
3	SciShow	Health Knowledge	United States 🇺🇸		7.95M	2.01B	3,683	2011-10
4	National Geographic	Entertainment Lifestyle Movies TV shows	United States 🇺🇸		23.3M	6.05B	10,487	2006-05
5	Mark Rober	Entertainment Hobby Lifestyle	United States 🇺🇸		54.2M	6.62B	160	2011-10
6	Veritasium	Knowledge Lifestyle	United States 🇺🇸		15.8M	2.71B	402	2010-07
7	The History Guy: History Deserves to Be Remembered	Knowledge Society	United States 🇺🇸		1.34M	238.87M	1,416	2017-01
8	SmarterEveryDay	Hobby Lifestyle Technology	United States 🇺🇸		11.5M	1.2B	380	2006-04
9	Fox News	Entertainment Politics Society TV shows	United States 🇺🇸		11.4M	17.07B	106,811	2006-09
10	dutchsinse	Society	United States 🇺🇸		661K	101.15M	2,856	2006-08
11	Timeline - World History Documentaries	Entertainment Knowledge Military Movies Society TV shows	United Kingdom 🇬🇧		5.26M	1.17B	1,137	2017-01
12	LastWeekTonight	Entertainment Politics Society TV shows			9.5M	3.93B	555	2014-03
13	TEDx Talks	Knowledge			41M	7.93B	218,514	2009-06
14	The Late Show with Stephen Colbert	Entertainment Movies Politics Society TV shows			9.35M	9.78B	11,101	2015-05
15	Reed Timmer	Lifestyle Society	United States 🇺🇸		1.08M	349.93M	2,553	2006-05