![James McKelvey](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
James McKelvey
Founder at
BLOCK, INC.
Net worth: 916 M $ as of 2026-05-30
Profile
Founder of 7 different companies, which include: Square, Inc., Cultivation Capital LLC and SixThirty Ventures LLC, James Morgan McKelvey is an entrepreneur and holds the position of Chief Executive Officer & Director at Invisibly, Inc. (which he founded), General Partner at SixThirty Ventures LLC (which he founded in 2013) and Partner at Nested Rails LLC (which he founded in 2016). Mr. McKelvey is also on the board of Federal Reserve Bank of St. Louis, Square, Inc., LockerDome LLC and Ajax I and Owner at Mira, Inc. In his past career Mr. McKelvey was General Partner at Cultivation Capital LLC (he founded the company in 2012). He received an undergraduate degree from Washington University in St. Louis.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
BLOCK, INC. 19.23% | 2026-03-30 | 11,940,025 ( 19.23% ) | 904 M $ | 2026-05-30 |
BLOCK, INC. CLASS A 0.02% | 2026-03-30 | 133,126 ( 0.02% ) | 10 M $ | 2026-05-30 |
| 2026-02-02 | 16,013 ( 0% ) | 2 M $ | 2026-05-30 | |
CALPIAN, INC. -.--% | 2017-03-30 | 41,667 ( -.--% ) | 1 375 $ | 2026-04-29 |
James McKelvey active positions
| Companies | Position | Start |
|---|---|---|
| BLOCK, INC. | Founder | 2009-01-31 |
| EMERSON ELECTRIC CO. | Director/Board Member | 2023-05-01 |
Decide Technologies, Inc.
 Decide Technologies, Inc. Internet Software/ServicesTechnology Services Operates a social media platform for sports | Director/Board Member | - |
Mira, Inc.
 Mira, Inc. Medical SpecialtiesHealth Technology Manufactures and develops opthalmic surgical equipment | Corporate Officer/Principal | - |
Invisibly, Inc.
 Invisibly, Inc. Packaged SoftwareTechnology Services Develops a system which enables to earn points through data and content | Founder | 2016-12-31 |
Washington University in St. Louis
 Washington University in St. Louis Other Consumer ServicesConsumer Services Functions as a College/University | Director/Board Member | - |
Mira Smart Conference | Founder | 1988-12-31 |
Former positions of James McKelvey
| Companies | Position | End |
|---|---|---|
Federal Reserve Bank of St. Louis
 Federal Reserve Bank of St. Louis General GovernmentGovernment Federal reserve bank | Chairman | 2023-12-31 |
| MONEYONMOBILE, INC. | Director/Board Member | 2018-08-30 |
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Training of James McKelvey
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
70
1st degree connections
15
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 15 |
|---|---|
Emerson Electric Co.
 Emerson Electric Co. Electronic Equipment/InstrumentsElectronic Technology Manufactures measurement and analytical instruments, industrial valves & equipment and process control software and systems | Electronic Technology |
Washington University in St. Louis
Washington University in St. Louis Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Federal Reserve Bank of St. Louis
Federal Reserve Bank of St. Louis General GovernmentGovernment Federal reserve bank | Government |
Mira, Inc.
Mira, Inc. Medical SpecialtiesHealth Technology Manufactures and develops opthalmic surgical equipment | Health Technology |
Block, Inc.
 Block, Inc. Miscellaneous Commercial ServicesCommercial Services Provides mobile app to send, receive and transfer money and enables businesses to accept card payments | Commercial Services |
MoneyOnMobile, Inc.
 MoneyOnMobile, Inc. Miscellaneous Commercial ServicesCommercial Services Provides electronic payment processing and software services | Commercial Services |
Cultivation Capital LLC
 Cultivation Capital LLC Investment ManagersFinance Cultivation Capital invests in companies located in the United States. The firm focuses on life sciences and health tech, software & IT, agriculture tech, fintech and geospatial tech sectors. It participates in seed and early-stage transactions with an investment size of USD 100,000-3.5 million. It acts as a lead investor and takes a seat on the board of directors. It makes follow-on investments. | Finance |
Decide Technologies, Inc.
Decide Technologies, Inc. Internet Software/ServicesTechnology Services Operates a social media platform for sports | Technology Services |
SixThirty Ventures LLC
 SixThirty Ventures LLC Investment ManagersFinance SixThirty Ventures invests in companies located across the globe. The firm focuses on financial technology, insurance technology, cybersecurity, and digital health sectors. It participates in seed and early stage capital transactions. | Finance |
Green Visor Capital Management Co LLC
 Green Visor Capital Management Co LLC Investment ManagersFinance Green Visor Capital Management invests in companies located across the globe. The firm targets companies operating in the fields of the financial services. It provides financing for early-stage capital requirements. | Finance |
LaunchCode
 LaunchCode Miscellaneous Commercial ServicesCommercial Services Operates an organization that creates pathways to economic opportunity and upward mobility | Commercial Services |
Third Degree Glass Factory
 Third Degree Glass Factory Media ConglomeratesConsumer Services Operates an artists studio | Consumer Services |
Invisibly, Inc.
Invisibly, Inc. Packaged SoftwareTechnology Services Develops a system which enables to earn points through data and content | Technology Services |
Ajax I
 Ajax I Financial ConglomeratesFinance Operates as a blank check company | Finance |
Mira Smart Conference |
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- James McKelvey
