Webshare, established in 2018 and headquartered in Covina, California. The company specializes in offering a comprehensive range of proxy solutions, including datacenter proxies, residential proxies, and ISP proxies. All of their technology is developed in-house with a focus on cybersecurity and speed. 

Webshare processes over 250 billion unique data points every month to provide a safe and compliant business proxy network. Webshare is a solid choice for those looking for cheap, customizable proxies for use cases like web scraping, multiple account management, etc.

Proxy-Seller is a Cyprus-based proxy service provider established in 2014. It offers a wide range of proxy types including Residential, ISP, Mobile, DC IPv4 & IPv6 proxies. 

The proxies support HTTP(S) and SOCKS5 protocols and are suitable for various use cases like web scraping, ad verification, sneaker botting, online gaming, etc. Proxy-Seller provides a user-friendly dashboard to easily manage proxies.

Bright Data, formerly known as Luminati Networks, is a leading web data platform and proxy service provider. It offers a comprehensive set of tools and services for businesses to collect public web data efficiently and ethically. 
Bright Data's offerings include various types of proxies (residential, datacenter, ISP, mobile), as well as web scraping tools, data collectors, and ready-to-use datasets.