# 51 Credit Card Manager

> 51 Credit Card Manager is a VC fund in Hangzhou backing FinTech and Finance. See 7 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Hangzhou, China
- Total investments: 7
- Last investment: Sep 2019
- Lead investor: 14%
- Last updated: Aug 2026
- Website: https://www.u51.com

51 Credit Card Manager is a VC fund in Hangzhou focused on FinTech and Finance. 51 Credit Card Manager develops a credit card management application. It offers 51 Credit Card Manager, an application which manages the user's credit card bills. Sun Haitao founded 51 Credit Card Manager in 2012. Its headquarters is in Hangzhou in China.

## Contacts

5 contacts available for 51 Credit Card Manager. Shizune tracks 4 team members at 51 Credit Card Manager. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/51-credit-card-manager?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Series B | $28M–$28M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| FinTech | 2 | 29% |
| Finance | 2 | 29% |
| Internet | 2 | 29% |
| Financial Services | 2 | 29% |
| Big Data | 1 | 14% |

12 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 3 | 43% |
| Series B | 3 | 43% |
| Funding Round | 1 | 14% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Cheke Zhao | CFO | 0 | https://shizune.co/investors/profile/cheke-zhao |
| Haitao Sun | CEO | 0 | https://shizune.co/investors/profile/haitao-sun |
| Wei Guo | CTO | 0 | https://shizune.co/investors/profile/wei-guo-ccae |
| Yuzhi Yang | Partner | 0 | https://shizune.co/investors/profile/yuzhi-yang |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| XCurrency | XCurrency is a currency convertor application based on big data and blockchain technologies |  | Series A | Sep 25, 2019 |  |
| Youshu | Youshu is a China-based big data credit investigation company. | $7.1M |  | Aug 27, 2019 |  |
| Pinpianyi | Pinpianyi is a Hangzhou-based start-up developing smart procurement platform for convenience stores, helping them minimize procurement cost and logistics cost. So far it has provided services for over 10,000 offline stores, connecting with more than 1,000 suppliers. |  | Series A | Jun 20, 2018 |  |
| Huisuanzhang | Huisuanzhang is a financial services platform for Chinese integrated enterprises. It provides services to SMEs including accounting, business registration, business change, tax audit, tax agency, trademark Registration, and other professional and efficient integration of tax services. Based on the user's recognition and trust, as of September2017, HuiZhuZheng has set up seven branches in Beijing, Shanghai, Guangzhou, Shenzhen, Chongqing, Tianjin and Hangzhou. The service network covers more than 200 cities in China with more than 300 Regional service agencies, to provide financial services to more than 230,000 business users. With the help of cloud and mobile Internet technology, HuiZhuZheng aims at standardization, refinement and scale-up, establishing marketing system, obtaining customer system, accounting service system, channel system, training system, business support system, tax-related service system, value-added service System, and other eight major systems, to achieve operational platform for standard operation. With core strengths such as technology-driven, service-oriented and innovative operation mode, HPC continuously upgrades and upgrades on the basis of improving user experience and resolving user's pain points, and solves the needs of small and medium-sized enterprises in their life-cycle taxation and taxation services. Huisuanzhang was established in April 2015. | $28.3M | Series B | Jan 26, 2018 |  |
| Weiclicai | Weiclicai is an auto real right crowdfunding information agent platform (the platform links car dealers, buyers, and investors. | $5.1M | Series A | Jul 31, 2017 |  |
| NKN News Network | NKN News Network is an online news magazine. | $28.3M | Series B | Jul 26, 2017 |  |
| Yongqianbao | Yongqianbao is a product of Smart Finance Group, which is founded in 2013. Yongqianbao provides small loans, from RMB500 to RMB5,000, to individual lenders for a period from 7 to 30 days. Up to March 2017, it has over 10 million of registered users and provides financial service to more than 1.5million people per month.The company will providethree types of services in the future, including “Yongqianbao” mobile financial APP, “I.C.E.”AI-based risk control system, and “Huichengbangbang PaaS” credit process management system. |  | Series B | Mar 08, 2016 |  |

7 of 7 investments shown.

## Co-investors
- [In Capital](https://shizune.co/investors/profile/in-capital) — VC Fund, 4 deals together
- [Hongtai Capital Holdings](https://shizune.co/investors/profile/aplus-capital) — VC Fund, 1 deal together
- [CrestValue](https://shizune.co/investors/profile/crestvalue) — VC Fund, 1 deal together
- [Harvest Capital](https://shizune.co/investors/profile/harvest-capital) — VC Fund, 1 deal together
- [Oriental Fortune Capital](https://shizune.co/investors/profile/oriental-fortune-capital) — VC Fund, 1 deal together
- [Source Code Capital](https://shizune.co/investors/profile/source-code-capital) — VC Fund, 1 deal together

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## FAQ

### What does 51 Credit Card Manager invest in?

51 Credit Card Manager invests primarily in FinTech, Finance and Internet startups, most often at Series A and Series B stage. Most of the 7 investments tracked by Shizune back companies in China. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is 51 Credit Card Manager's check size?

51 Credit Card Manager typically joins rounds of $28M–$28M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds 51 Credit Card Manager participates in.

### How do I contact 51 Credit Card Manager?

Public channels for 51 Credit Card Manager include the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at 51 Credit Card Manager?

The team at 51 Credit Card Manager includes Cheke Zhao (CFO), Haitao Sun (CEO) and Wei Guo (CTO). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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