What companies are similar to RSK?

Could you elaborate on which companies are considered similar to RSK in terms of their operations, technology, or industry niche? Are there any blockchain platforms that share comparable features, goals, or use cases as RSK? Additionally, are there any startups or established firms within the cryptocurrency or finance sector that exhibit similarities to RSK's approach or market positioning? It would be insightful to understand the landscape of companies that are analogous to RSK in the broader context of the industry.