![]() Quora Quora is a question-and-answer website created, edited and organized by its community of users. | ![]() Zhihu Zhihu (知乎, also known as 北京智者天下科技有限公司) is a company that develops an online content community platform. | ![]() Mighty Networks Mighty Networks is a company developing a social network platform for deep interests. | ||
Founding Date | Founding Date 2009 | Founding Date 2010 | Founding Date 2008 | Founding Date 2011 |
Type | Type Private | Type Public | Type Subsidiary | Type Private |
Tags | ||||
Locations | Locations Mountain View, US HQ | Locations Beijing, CN HQ Hong Kong, HK | Locations New York, US HQ | Locations Palo Alto, US HQ Palo Alto, US |
Employees | Employees 1,2601% decrease | Employees 1,88731% decrease | Employees 6501% increase | Employees 1462% increase |
Valuation ($) | Valuation ($) 2 b | Valuation ($) 346.4 m | Valuation ($) N/A | Valuation ($) N/A |
Financial | ||||
Revenue (est.) | Revenue (est.) $20m (Y, 2018) | Revenue (est.) ¥2.7b (FY, 2025) | Revenue (est.) N/A | Revenue (est.) N/A |
Funding | ||||
Latest funding round | Latest funding round $ 60m (about 7 years ago) | Latest funding round N/A | Latest funding round N/A | Latest funding round $ 50m (about 5 years ago) |
Total funding raised | Total funding raised $ 286m | Total funding raised $ 1.4b | Total funding raised $ 143m | Total funding raised $ 66m |

Zhihu (知乎, also known as 北京智者天下科技有限公司) is a company that develops an online content community platform.
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Stack Overflow is a public Q&A platform for developers operated by Stack Exchange.
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Mighty Networks is a company developing a social network platform for deep interests.
View company