The top 15 influencer-marketing agencies and creator marketplaces that connect major brands with Instagram, YouTube, and TikTok stars

· Business Insider is recognizing the leading agencies, platforms, and marketplaces in the influencer-marketing industry. 
· In this power list, we are highlighting the companies that connect top brands with social-media creators across YouTube, Instagram, and TikTok. 
· These 15 companies, including Mediakix, BEN, and...