Charles Leykum
Director/Board Member at SENTINEL ENERGY SERVICES INC
Net worth: 442 185 $ as of 2024-04-29
Network origin in Charles Leykum first degree
| Entity | Entity type | Industry | |
|---|---|---|---|
Goldman Sachs & Co. LLC
 Goldman Sachs & Co. LLC Investment Banks/BrokersFinance Goldman Sachs & Co. LLC (GS&Co.) is a securities brokerage firm headquartered in New York City. Founded in 1927, the firm is a subsidiary of The Goldman Sachs Group, Inc. (NYSE: GS). GS&Co. provides services to help hedge funds manage risk, monitor portfolios, maintain liquidity and build their businesses. They offer clients access to global equity and derivatives markets, as well as foreign exchange, commodities, European Lefts, rates and credit across the Americas, Europe and Asia. The firm proactively monitors capital markets, searching for pockets of liquidity and news that may require changes to those strategies. Integration with the Goldman Sachs network gives clients access to the firm's sectored block trades and their insights into price discovery. Their electronic trading program provides clients with tools to manage their trades from pre-trade analytics to post-trade analysis.
490
| Subsidiary | Investment Banks/Brokers | 490 |
The Trustees of Columbia University in The City of New York
207
| College/University | Other Consumer Services | 207 |
Harvard Business School
136
| College/University | Other Consumer Services | 136 |
Soros Fund Management LLC
 Soros Fund Management LLC Investment ManagersFinance Soros Fund Management LLC (SFM) is a privately-held investment management firm now structured as a family office, but which was once a hedge fund manager. The firm was founded in 1969 and is headquartered in New York City. SFM serves as principal investment adviser to a group of funds managed for the benefit of Soros family cl fsients.
27
| Private Company | Investment Managers | 27 |
| Public Company | Oilfield Services/Equipment | 25 | |
CSL Capital Management LLC
 CSL Capital Management LLC Investment ManagersFinance CSL Capital Management LLC (CSL Capital) is a private equity firm founded by Charles Leykum in 2008. The firm is headquartered in Houston, Texas.
16
| Private Company | Investment Managers | 16 |
BJ Services, Inc.
 BJ Services, Inc. Oilfield Services/EquipmentIndustrial Services BJ Services, Inc. provides hydraulic fracturing and cementing services. The company was founded in March 2017 and is headquartered in Tomball, TX.
13
| Holding Company | Oilfield Services/Equipment | 13 |
| Private Company | Financial Conglomerates | 9 | |
Raptor Lift Solutions LLC
 Raptor Lift Solutions LLC Industrial MachineryProducer Manufacturing Raptor Lift Solutions LLC provides innovative solutions for unstable power in the oilfield. Raptor Lift Solutions is based in Houston, TX. The company is passionate about reducing operating expenses and improving ESG ratings for clients. Eric R. Calderon has been the CEO of the company since 2020.
7
| Holding Company | Industrial Machinery | 7 |
Ranger Energy Services LLC
 Ranger Energy Services LLC Contract DrillingIndustrial Services Ranger Energy Services LLC provides oilfield services. It offers w equipment and progressive solutions to the oil and gas industry. The firm?s operations include well services, academy oilfield rentals, transportation, transportation fleet and rig fleet. The company was founded by Michael Hopkins and Scott Milliren in 2014 and is headquartered in Stafford, TX.
6
| Subsidiary | Contract Drilling | 6 |
Ranger Services LLC
 Ranger Services LLC Finance/Rental/LeasingFinance Ranger Services LLC engages in the provision of residential mortgage lending and real estate settlement servicing activities. The company is headquartered in Overland Park, KS.
2
| Subsidiary | Finance/Rental/Leasing | 2 |
Mission Well Services LLC
 Mission Well Services LLC Oilfield Services/EquipmentIndustrial Services Mission Well Services LLC provides hydraulic fracturing and coiled tubing services to oil and gas exploration industries. The company is headquartered in Greenwich, CT.
2
| Subsidiary | Oilfield Services/Equipment | 2 |
Chart of Companies connected to the second degree
Multi-company connection
Companies connected to Charles Leykum via their personal network
| Company | Sector | Related people | Main position |
|---|---|---|---|
Baker Hughes Holdings LLC
 Baker Hughes Holdings LLC Electrical ProductsProducer Manufacturing Baker Hughes Holdings LLC supplies oilfield services, products, technology, and systems to the worldwide oil and natural gas industry. It provides products and services for other businesses including downstream chemicals, and process and pipeline services. The company is headquartered in Houston, TX. | Electrical Products | Director/Board Member Chief Tech/Sci/R&D Officer General Counsel | |
| PARKER DRILLING COMPANY | Contract Drilling | Corporate Officer/Principal Corporate Officer/Principal | |
| TIDEWATER INC. | Marine Shipping | Director/Board Member Director/Board Member | |
| SCHLUMBERGER LIMITED | Contract Drilling | Comptroller/Controller/Auditor Chief Executive Officer Corporate Officer/Principal Corporate Officer/Principal | |
| CARBO CERAMICS INC. | Other Metals/Minerals | Director/Board Member Compliance Officer | |
| THE GOLDMAN SACHS GROUP, INC. | Investment Banks/Brokers | Corporate Officer/Principal Corporate Officer/Principal Chief Executive Officer | |
Goldman Sachs Asset Management LP
 Goldman Sachs Asset Management LP Investment ManagersFinance Goldman Sachs Asset Management LP (GSAMLP) is a SEC-registered investment advisor headquartered in New York City. The firm is a wholly owned subsidiary of GSAM Holdings LLC, and their ultimate parent is Goldman Sachs Group, Inc. (NYSE: GS). Founded in 1988, GSAMLP provides investment solutions to a range of individual and institutional investors worldwide. | Investment Managers | Analyst-Equity Chief Executive Officer | |
Citadel Enterprise Americas LLC
 Citadel Enterprise Americas LLC Investment ManagersFinance Citadel Enterprise Americas LLC (Citadel Enterprise) is an independent hedge fund management firm headquartered in Miami, Florida. The firm was founded by Kenneth C. Griffin and Reade Griffith in 1990 and formerly known as Citadel LLC. Citadel Enterprise provides investment banking, institutional trading and fund administration services to many types of US and non-US domiciled clients. | Investment Managers | Chief Operating Officer Corporate Officer/Principal | |
| TRANSOCEAN LTD. | Contract Drilling | Comptroller/Controller/Auditor Chairman | |
Bayou Well Services LLC
 Bayou Well Services LLC Oil & Gas ProductionEnergy Minerals Bayou Well Services LLC provides well site support services for oil and gas operations. The firm engages in pressure pumping, work over and completion rig operations, water transfer and rental services. It has offices in California, Colorado, Louisiana, North Dakota and Texas. The company was founded in 2009 and is headquartered in Houston, TX. | Oil & Gas Production | Chairman Chief Executive Officer | |
Morgan Stanley & Co. LLC
 Morgan Stanley & Co. LLC Investment Banks/BrokersFinance Morgan Stanley & Co. LLC is a registered broker-dealer subsidiary of Morgan Stanley Domestic Holdings, Inc., ultimately owned by Morgan Stanley (NYSE: MS) in the US. Headquartered in New York City, the firm was founded in 1987 and provides debt and equity services including underwriting, M&A advice, securities dealing and brokerage and trade execution. Their client base ranges from large global institutional investors to hedge funds at the cutting edge of innovation in the industry. | Investment Banks/Brokers | Analyst-Equity Analyst-Equity Analyst-Equity | |
McKinsey & Co., Inc.
 McKinsey & Co., Inc. Miscellaneous Commercial ServicesCommercial Services McKinsey & Co., Inc. provides management consulting services. It specializes in design, marketing and sales, analytics, operations, transformation and restructuring, risk, strategy and corporate finance, and sustainability and resource productivity. The company was founded by James O. McKinsey in 1926 and is headquartered in New York, NY. | Miscellaneous Commercial Services | Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal | |
| Dartmouth College | College/University | Masters Business Admin Undergraduate Degree | |
Harvard University
 Harvard University Other Consumer ServicesConsumer Services Harvard University engages in the provision of teaching and research. It has twelve degree-granting Schools in addition to the Radcliffe Institute for Advanced Study, offering a global education. The university was founded in 1636 and is headquartered in Cambridge, MA. | College/University | Masters Business Admin Undergraduate Degree Undergraduate Degree Undergraduate Degree | |
| Stanford University | College/University | Masters Business Admin Masters Business Admin Undergraduate Degree Masters Business Admin Masters Business Admin | |
| University of Pennsylvania | College/University | Undergraduate Degree Undergraduate Degree Masters Business Admin | |
| University of Oxford | College/University | Graduate Degree Doctorate Degree | |
| Illinois Institute of Technology | College/University | Undergraduate Degree Graduate Degree | |
| Massachusetts Institute of Technology | College/University | Masters Business Admin Graduate Degree Undergraduate Degree | |
| Boston College | College/University | Undergraduate Degree Undergraduate Degree Undergraduate Degree | |
| Brigham Young University | College/University | Graduate Degree Undergraduate Degree | |
Northwestern University
 Northwestern University Other Consumer ServicesConsumer Services Northwestern University is a private institution founded in 1851 to serve the Northwest Territory, an area that now includes the states of Ohio, Indiana, Illinois, Michigan, Wisconsin and parts of Minnesota. Northwestern has three campuses | College/University | Undergraduate Degree Undergraduate Degree | |
| The University of Texas at Austin | College/University | Masters Business Admin Undergraduate Degree Graduate Degree Masters Business Admin Undergraduate Degree Masters Business Admin Undergraduate Degree | |
BJ Services LLC
 BJ Services LLC Oilfield Services/EquipmentIndustrial Services Part of BJ Services, Inc., BJ Services LLC provides fracturing, pressure pumping and cementing services. The company is based in Dallas, TX. Warren Zemlak has been the CEO of the company since 2017. | Oilfield Services/Equipment | Director/Board Member Director/Board Member Director/Board Member Compliance Officer Chief Executive Officer Chief Operating Officer | |
| Georgetown University | College/University | Undergraduate Degree Undergraduate Degree Undergraduate Degree Undergraduate Degree | |
| The Wharton School of the University of Pennsylvania | College/University | Masters Business Admin Masters Business Admin Masters Business Admin | |
| New York University | College/University | Undergraduate Degree Doctorate Degree Undergraduate Degree | |
University of Houston
 University of Houston Other Consumer ServicesConsumer Services University of Houston System offers higher education degrees and job training or vocational study programs. It offers about 280 undergraduate and graduate degree programs in fields such as business, education, humanities and law. It was founded in 1927 and is headquartered in Houston, TX. | College/University | Graduate Degree Graduate Degree Graduate Degree | |
| BAKER HUGHES COMPANY | Contract Drilling | Chief Tech/Sci/R&D Officer General Counsel Director of Finance/CFO | |
CSL Ventures LLC
 CSL Ventures LLC Investment ManagersFinance CSL Ventures LLC (CSL Ventures LLC) is a venture capital firm, a subsidiary of CSL Capital Management LLC founded in 2019. The firm is headquartered in Houston, Texas. | Investment Managers | Director/Board Member Private Equity Investor Director/Board Member | |
Express Energy Services LLC
 Express Energy Services LLC Oilfield Services/EquipmentIndustrial Services Express Energy Services LLC engages in the provision of well construction and well testing services for complex horizontal wells. The firm offers casing and tubular running services, conductor drilling, drill site rentals, pressure testing, and pit lining services. The company was founded in 2000 and is headquartered in Houston, TX. | Oilfield Services/Equipment | Director/Board Member Chief Executive Officer Chief Executive Officer | |
| University of Wisconsin | College/University | Undergraduate Degree Undergraduate Degree Undergraduate Degree | |
| COBALT INTERNATIONAL ENERGY, INC. | Oil & Gas Production | Director/Board Member Director/Board Member | |
| University of California, Berkeley | College/University | Undergraduate Degree Undergraduate Degree | |
Advantek Waste Management Services LLC
 Advantek Waste Management Services LLC Other Consumer ServicesConsumer Services Advantek Waste Management Services LLC provides waste management services. It services include Treatment and Recycling, Disposal and Consulting and Software Licensing. The company was founded by Ahmed Abou-Sayed on August 15, 2014 and is headquartered in Houston, TX. | Other Consumer Services | Chairman Consultant / Advisor | |
| Louisiana State University | College/University | Undergraduate Degree Undergraduate Degree | |
Bj Energy Solutions LLC
 Bj Energy Solutions LLC Oil & Gas ProductionEnergy Minerals BJ Energy Solutions LLC provides oil and gas services. The private company is based in The Woodlands, TX. Warren Zemlak has been the CEO of the company since 2017. | Oil & Gas Production | Chief Executive Officer Chief Operating Officer | |
The Montclair Kimberley Academy
 The Montclair Kimberley Academy Other Consumer ServicesConsumer Services The Montclair Kimberley Academy operates as a primary and secondary school. The private company is based in Montclair, NJ. | Other Consumer Services | Director/Board Member Director/Board Member | |
UBS Investment Bank (US)
 UBS Investment Bank (US) Investment Banks/BrokersFinance UBS Investment Bank provides investment banking and securities brokerage services. Its clients include institutional and corporate clients, intermediaries, governments, and hedge funds. The firm also provides merger and acquisition advisory, private placement, investment research, foreign exchange, equity, and leverage finance advisory services. The firm is headquartered in San Francisco, CA. | Investment Banks/Brokers | Corporate Officer/Principal Corporate Officer/Principal | |
| WEATHERFORD INTERNATIONAL PLC | Oilfield Services/Equipment | Chief Executive Officer Director of Finance/CFO | |
Society of Petroleum Engineers, Inc.
 Society of Petroleum Engineers, Inc. Engineering & ConstructionIndustrial Services Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada. | Engineering & Construction | Corporate Officer/Principal Corporate Officer/Principal | |
| Princeton University | College/University | Undergraduate Degree Undergraduate Degree | |
| The United States Army (District of Columbia) | Sovereign | Corporate Officer/Principal Human Resources Officer | |
| US Military Academy | College/University | Undergraduate Degree Undergraduate Degree |
Statistics
International
| United States | 47 |
| Switzerland | 2 |
| Netherlands | 2 |
| United Kingdom | 2 |
Sectoral
| Consumer Services | 22 |
| Industrial Services | 11 |
| Finance | 10 |
| Energy Minerals | 4 |
| Transportation | 3 |
Operational
| Director/Board Member | 416 |
| Corporate Officer/Principal | 159 |
| Undergraduate Degree | 84 |
| Independent Dir/Board Member | 70 |
| Chief Executive Officer | 67 |
Most connected contacts
| Insiders | |
|---|---|
| John J. Oros | 37 |
| William M. Austin | 34 |
| Scott L. Lebovitz | 29 |
| Jack Daly | 27 |
| Sing Wang | 27 |
| Byron Dunn | 26 |
| John Waterfield | 25 |
| Andrew Frederick Gould | 25 |
| Kenneth A. Giuriceo | 24 |
| Hank Uberoi | 22 |
| Bijan Salehizadeh | 22 |
| Abhinav Jain | 22 |
| Chris McFadden | 22 |
| Peter Perrone | 21 |
| Lou Kerner | 20 |
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