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 Protolabs

#	Channel	Category	Country	Language	Subscribers	Views	# videos	Created
1	LastWeekTonight	Entertainment Politics Society TV shows			9.51M	3.93B	555	2014-03
2	SmarterEveryDay	Hobby Lifestyle Technology	United States 🇺🇸		11.5M	1.2B	380	2006-04
3	CNC Kitchen	Hobby Lifestyle Technology	Germany 🇩🇪		585K	88.27M	211	2016-12
4	NYC CNC	Hobby Lifestyle Technology	United States 🇺🇸		447K	86.35M	1,189	2006-10
5	ColdFusion	Knowledge Lifestyle Society Technology	Australia 🇦🇺		4.85M	485.19M	502	2007-12
6	Marques Brownlee	Lifestyle Technology	United States 🇺🇸		19.1M	4.34B	1,666	2008-03
7	AvE	Hobby Lifestyle	Canada 🇨🇦		1.43M	398.42M	787	2012-02
8	This Old Tony	Hobby Lifestyle Technology			1.16M	216.3M	219	2010-09
9	Adam Savage’s Tested	Hobby Lifestyle	United States 🇺🇸		6.68M	1.54B	6,795	2010-03
10	EEVblog	Lifestyle Technology	Australia 🇦🇺		941K	205.54M	1,973	2009-04
11	Tom Scott	Lifestyle Society Technology			6.44M	1.76B	731	2006-05
12	Two Minute Papers	Knowledge Lifestyle Technology	Hungary 🇭🇺		1.57M	143.2M	900	2006-08
13	CGP Grey	Lifestyle Society	United Kingdom 🇬🇧		6.41M	1.05B	188	2010-08
14	Vsauce	Lifestyle			22.1M	4.34B	545	2007-07
15	Project Farm	Hobby Lifestyle Vehicles	United States 🇺🇸		3.23M	728.87M	418	2017-01