![A. Seawell](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>)
A. Seawell
Director/Board Member at
TENABLE HOLDINGS, INC.
Net worth: 503 M $ as of 30/06/2026
Profile
A. Brooke Seawell was the founder of Southwall Technologies, Inc., founded in 1979, where the title held was Chief Financial Officer from 1979 to 1983.
Current jobs include Independent Director at NVIDIA Corp.
since 1997; Director at Tenable Network Security, Inc. since 2017; Director at Technical Communities, Inc.; Independent Director at Tenable Holdings, Inc. since 2017; Director at Tenable, Inc.; Venture Partner at NEA Management Co. LLC since 2005; and Venture Partner at Formative Ventures LLC.
Former jobs include Chairman at Tensilica, Inc.; Director at Informatica LLC from 2011 to 2015; Independent Director at Tableau Software LLC from 2011 to 2019; Director at Telegent Systems, Inc. from 2007 to 2013; Director at SugarCRM, Inc.; Director at iRise; Director at Tabula, Inc.; Director at Khoros LLC; Independent Director at Glu Mobile LLC from 2011 to 2014; Director at SiTime Corp.; Director at Acquia, Inc.; Director at SiliconBlue Technologies Corp.; Director at Malwarebytes, Inc.; Independent Non-Executive Director at Eargo, Inc. from 2020 to 2022; Director at Informatica Corp.
from 1997 to 2015; Chief Financial Officer & Senior VP-Operations at Synopsys, Inc. from 1991 to 1997; Chief Financial Officer & VP-Production at Weitek Corp.
from 1983 to 1991; Executive Vice President at NetDynamics, Inc. from 1997 to 1998; Limited Partner at Needham Capital Partners; Venture Partner at TCMI, Inc. from 2000 to 2005; Member of the Stanford Athletic Board from 2013 to 2017; and Member-Management Board at Stanford Graduate School of Business from 2008 to 2012.
Education includes an undergraduate degree from Stanford University conferred in 1969 and an MBA from Stanford University conferred in 1975.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
NVIDIA CORPORATION 0.01% | 25/06/2026 | 25,07,818 ( 0.01% ) | 502 M $ | 30/06/2026 |
| 13/05/2026 | 30,292 ( 0.03% ) | 1 M $ | 30/06/2026 |
A. Seawell active positions
| Companies | Position | Start |
|---|---|---|
| NVIDIA CORPORATION | Director/Board Member | 01/12/1997 |
| TENABLE HOLDINGS, INC. | Director/Board Member | 01/10/2017 |
Tenable, Inc.
 Tenable, Inc. Miscellaneous Commercial ServicesCommercial Services Provides cyber security software | Director/Board Member | - |
Tenable Network Security, Inc.
 Tenable Network Security, Inc. Miscellaneous Commercial ServicesCommercial Services Develops unified security monitoring solutions for securing enterprise networks | Director/Board Member | 07/12/2017 |
Technical Communities, Inc.
 Technical Communities, Inc. Miscellaneous Commercial ServicesCommercial Services Provides contracting, marketing and sales solutions | Director/Board Member | - |
NEA Management Co. LLC
 NEA Management Co. LLC Investment ManagersFinance New Enterprise Associates seeks invests in companies located across the globe. The firm targets companies operating in the fields of technology (software & services, systems, consumer & internet, energy), healthcare (biopharms, devices, services). The firm provides financing for seed, early and growth stage capital requirements. | Consultant / Advisor | 01/01/2005 |
Formative Ventures LLC
 Formative Ventures LLC Investment ManagersFinance Formative Ventures makes early-stage investments in all areas of the technology sector including communications, mobile/wireless solutions, advanced semiconductors, Internet infrastructure and next-generation Internet solutions. | Private Equity Investor | - |
Former positions of A. Seawell
| Companies | Position | End |
|---|---|---|
| EARGO, INC. | Director/Board Member | 07/12/2022 |
| TABLEAU SOFTWARE, INC. | Director/Board Member | 01/08/2019 |
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Training of A. Seawell
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
84
1st degree connections
31
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 31 |
|---|---|
Southwall Technologies, Inc.
 Southwall Technologies, Inc. Industrial SpecialtiesProcess Industries Manufactures and supplies film and glass building materials | Process Industries |
Synopsys, Inc.
 Synopsys, Inc. Packaged SoftwareTechnology Services Develops semiconductor intellectual property and electronic design automation software solutions | Technology Services |
Weitek Corp.
 Weitek Corp. SemiconductorsElectronic Technology Manufactures multimedia chips, PC chipsets and CPUs for electronic computers | Electronic Technology |
NVIDIA Corp.
 NVIDIA Corp. SemiconductorsElectronic Technology Designs and manufactures computer graphics processors, chipsets, and related multimedia software | Electronic Technology |
Informatica LLC
 Informatica LLC Packaged SoftwareTechnology Services Develops AI-powered data management platform | Technology Services |
Tableau Software LLC
 Tableau Software LLC Packaged SoftwareTechnology Services Develops analytics and data visualization software | Technology Services |
Telegent Systems, Inc.
 Telegent Systems, Inc. SemiconductorsElectronic Technology Manufactures wireless TV broadcasting semiconductors | Electronic Technology |
SugarCRM, Inc.
 SugarCRM, Inc. Packaged SoftwareTechnology Services Provides software solutions that helps marketing, sales and service teams | Technology Services |
iRise
 iRise Packaged SoftwareTechnology Services Develops application software | Technology Services |
Tenable Network Security, Inc.
Tenable Network Security, Inc. Miscellaneous Commercial ServicesCommercial Services Develops unified security monitoring solutions for securing enterprise networks | Commercial Services |
Tabula, Inc.
 Tabula, Inc. SemiconductorsElectronic Technology Manufactures fabless semiconductors | Electronic Technology |
Technical Communities, Inc.
Technical Communities, Inc. Miscellaneous Commercial ServicesCommercial Services Provides contracting, marketing and sales solutions | Commercial Services |
Khoros LLC
 Khoros LLC Packaged SoftwareTechnology Services Develops enterprise software platform for digital-first customer engagement | Technology Services |
Stanford University
 Stanford University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
NetDynamics, Inc.
 NetDynamics, Inc. Packaged SoftwareTechnology Services Develops software that gives Internet users access to information on a corporate database | Technology Services |
NEA Management Co. LLC
NEA Management Co. LLC Investment ManagersFinance New Enterprise Associates seeks invests in companies located across the globe. The firm targets companies operating in the fields of technology (software & services, systems, consumer & internet, energy), healthcare (biopharms, devices, services). The firm provides financing for seed, early and growth stage capital requirements. | Finance |
Needham Capital Partners
 Needham Capital Partners Investment ManagersFinance Needham Capital Partner invests in growth companies located in the United States. The firm focuses on a broad range of sectors and industries. It provides financing for growth and buyout stage capital transactions. | Finance |
TCMI, Inc.
 TCMI, Inc. Investment ManagersFinance TCMI invests in public and private companies located in the United States. The firm target companies operating in the fields of Infrastructure software,fintech payments, consumer and application software. It provides financing for growth capital requirements with an investment size ranging from USD 10 to 500 million. | Finance |
Glu Mobile LLC
 Glu Mobile LLC Packaged SoftwareTechnology Services Develops and publishes mobile games | Technology Services |
Tensilica, Inc.
 Tensilica, Inc. SemiconductorsElectronic Technology Develops microprocessor IP cores | Electronic Technology |
SiTime Corp.
 SiTime Corp. SemiconductorsElectronic Technology Develops and manufactures analog semiconductors | Electronic Technology |
Formative Ventures LLC
Formative Ventures LLC Investment ManagersFinance Formative Ventures makes early-stage investments in all areas of the technology sector including communications, mobile/wireless solutions, advanced semiconductors, Internet infrastructure and next-generation Internet solutions. | Finance |
Stanford Athletic Board | |
Acquia, Inc.
 Acquia, Inc. Packaged SoftwareTechnology Services Develops cloud platform for building, delivering and optimizing digital experiences | Technology Services |
SiliconBlue Technologies Corp.
 SiliconBlue Technologies Corp. Other Consumer ServicesConsumer Services Manufactures and commercializes ultra low power devices | Consumer Services |
Malwarebytes, Inc.
 Malwarebytes, Inc. Packaged SoftwareTechnology Services Develops cybersecurity software tools | Technology Services |
Stanford Graduate School of Business
 Stanford Graduate School of Business Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Eargo, Inc.
 Eargo, Inc. Medical SpecialtiesHealth Technology Designs and manufactures hearing aids | Health Technology |
Tenable Holdings, Inc.
 Tenable Holdings, Inc. Packaged SoftwareTechnology Services Develops security software solutions | Technology Services |
Informatica Corp.
 Informatica Corp. Information Technology ServicesTechnology Services Provides cyber security and education programs solutions | Technology Services |
Tenable, Inc.
Tenable, Inc. Miscellaneous Commercial ServicesCommercial Services Provides cyber security software | Commercial Services |
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