Sutter Hill Ventures

Founded in 1962, Sutter Hill Ventures is a California-based venture capital firm focused on early-stage technology and life science companies across the United States. It targets sectors including computer technology, healthcare, software, telecommunications, and consumer products. The firm combines substantial operating experience with a hands-on, team-based approach, providing strategic guidance, partnership development, and help in building management teams. It responds quickly to new opportunities and supports portfolio companies with its networks, resources, and practical advice to accelerate growth and execution. The partners invest their own capital in many investments, reinforcing their commitment to the companies they back and aligning incentives for long-term value creation.

Len Baker

Managing Director

Chris Basso

CFO and Managing Director

Tench Coxe

Managing Director

Stefan Dyckerhoff

Managing Director

Jon Engler

Partner

Past deals in Networking

AttoTude

Series B in 2025
AttoTude is a technology company specializing in the development of advanced interconnect solutions for AI and hyperscale data centers. It aims to surpass the limitations of existing data networking systems by creating innovative technology that significantly boosts bandwidth, enhances reliability, and reduces power consumption and costs.

Enfabrica

Series C in 2024
Enfabrica develops hardware, software, and system technologies to tackle interconnect bottlenecks in AI and accelerated computing workloads. It designs networking chips and converged memory fabric silicon and software to improve performance, scalability, and efficiency across hyper-scale cloud, edge, enterprise, and automotive infrastructure. The company focuses on technologies such as Compute Express Link to enable multi-GPU configurations and higher interconnect bandwidth, addressing bottlenecks in modern AI and data-intensive systems.

AttoTude

Series A in 2024
AttoTude is a technology company specializing in the development of advanced interconnect solutions for AI and hyperscale data centers. It aims to surpass the limitations of existing data networking systems by creating innovative technology that significantly boosts bandwidth, enhances reliability, and reduces power consumption and costs.

Enfabrica

Series B in 2023
Enfabrica develops hardware, software, and system technologies to tackle interconnect bottlenecks in AI and accelerated computing workloads. It designs networking chips and converged memory fabric silicon and software to improve performance, scalability, and efficiency across hyper-scale cloud, edge, enterprise, and automotive infrastructure. The company focuses on technologies such as Compute Express Link to enable multi-GPU configurations and higher interconnect bandwidth, addressing bottlenecks in modern AI and data-intensive systems.

RF Pixels

Series A in 2019
RF Pixels, Inc. is a private company based in Silicon Valley that focuses on developing innovative technology for the advancement of 5G wireless communications. Founded by a team affiliated with the UC Berkeley Wireless Research Center, RF Pixels specializes in phased-array radio technology, which offers significant capacity enhancements and cost-effective solutions for the emerging 5G millimeter-wave frequency bands. This technology enables robust high-speed connections for users while providing a solid business foundation for service providers. The company is committed to fostering a collaborative and motivated technical team dedicated to creating high-quality products and ensuring customer satisfaction.

ThousandEyes

Series D in 2019
ThousandEyes, Inc. is a network monitoring software company that focuses on enhancing the performance of applications and network infrastructure. Founded in 2010 and headquartered in San Francisco, California, with an additional office in London, the company provides a cloud platform that delivers comprehensive visibility into user experiences across any network. ThousandEyes enables organizations to visualize network intelligence, analyze real-time performance data, and consolidate previously isolated performance metrics. Its solutions cater to enterprise IT, online operations, and network security, helping businesses improve digital experiences, modernize their enterprise WAN, and facilitate cloud migrations. The platform is utilized by a wide range of prominent global brands, including major corporations and top SaaS companies, making it integral to their operational success. ThousandEyes operates as a subsidiary of Cisco Systems, Inc.

Benu Networks

Venture Round in 2017
Benu Networks is a privately held telecommunications software company based in Billerica, Massachusetts. The company specializes in developing innovative software solutions that simplify complex edge networks. Its next-generation Virtual Service Edge (VSE) platform integrates cable modem termination system (CMTS) functions, allowing network operators to create and deliver Internet Protocol (IP) services over a converged infrastructure. With over a decade of industry experience, Benu Networks focuses on transforming legacy networks, managing services elastically, and supporting the transition to 5G technology. The company is backed by reputable venture capital firms, underscoring its potential for growth and impact in the telecommunications sector.

RF Pixels

Seed Round in 2016
RF Pixels, Inc. is a private company based in Silicon Valley that focuses on developing innovative technology for the advancement of 5G wireless communications. Founded by a team affiliated with the UC Berkeley Wireless Research Center, RF Pixels specializes in phased-array radio technology, which offers significant capacity enhancements and cost-effective solutions for the emerging 5G millimeter-wave frequency bands. This technology enables robust high-speed connections for users while providing a solid business foundation for service providers. The company is committed to fostering a collaborative and motivated technical team dedicated to creating high-quality products and ensuring customer satisfaction.

Skyport Systems

Series C in 2016
Skyport Systems specializes in developing Hyper-Secured Infrastructure (HSI) that safeguards mission-critical IT assets. The company offers a comprehensive solution through its SkySecure System, which integrates hardware, software, and services into a unified turn-key system. This system is designed to provide continuous protection and integrity verification for application workloads, ensuring that both hardware and software remain secure. Skyport's enterprise IT software features a hyperconverged platform that simplifies IT infrastructure by merging compute, virtualization, networking, and storage into one cohesive unit, all while maintaining high levels of security and performance. By streamlining and automating operations, Skyport enables IT organizations to save time and resources, empowering application owners with greater control over their infrastructure.

ThousandEyes

Series C in 2016
ThousandEyes, Inc. is a network monitoring software company that focuses on enhancing the performance of applications and network infrastructure. Founded in 2010 and headquartered in San Francisco, California, with an additional office in London, the company provides a cloud platform that delivers comprehensive visibility into user experiences across any network. ThousandEyes enables organizations to visualize network intelligence, analyze real-time performance data, and consolidate previously isolated performance metrics. Its solutions cater to enterprise IT, online operations, and network security, helping businesses improve digital experiences, modernize their enterprise WAN, and facilitate cloud migrations. The platform is utilized by a wide range of prominent global brands, including major corporations and top SaaS companies, making it integral to their operational success. ThousandEyes operates as a subsidiary of Cisco Systems, Inc.

Skyport Systems

Series B in 2015
Skyport Systems specializes in developing Hyper-Secured Infrastructure (HSI) that safeguards mission-critical IT assets. The company offers a comprehensive solution through its SkySecure System, which integrates hardware, software, and services into a unified turn-key system. This system is designed to provide continuous protection and integrity verification for application workloads, ensuring that both hardware and software remain secure. Skyport's enterprise IT software features a hyperconverged platform that simplifies IT infrastructure by merging compute, virtualization, networking, and storage into one cohesive unit, all while maintaining high levels of security and performance. By streamlining and automating operations, Skyport enables IT organizations to save time and resources, empowering application owners with greater control over their infrastructure.

Benu Networks

Series C in 2015
Benu Networks is a privately held telecommunications software company based in Billerica, Massachusetts. The company specializes in developing innovative software solutions that simplify complex edge networks. Its next-generation Virtual Service Edge (VSE) platform integrates cable modem termination system (CMTS) functions, allowing network operators to create and deliver Internet Protocol (IP) services over a converged infrastructure. With over a decade of industry experience, Benu Networks focuses on transforming legacy networks, managing services elastically, and supporting the transition to 5G technology. The company is backed by reputable venture capital firms, underscoring its potential for growth and impact in the telecommunications sector.

ThousandEyes

Series B in 2014
ThousandEyes, Inc. is a network monitoring software company that focuses on enhancing the performance of applications and network infrastructure. Founded in 2010 and headquartered in San Francisco, California, with an additional office in London, the company provides a cloud platform that delivers comprehensive visibility into user experiences across any network. ThousandEyes enables organizations to visualize network intelligence, analyze real-time performance data, and consolidate previously isolated performance metrics. Its solutions cater to enterprise IT, online operations, and network security, helping businesses improve digital experiences, modernize their enterprise WAN, and facilitate cloud migrations. The platform is utilized by a wide range of prominent global brands, including major corporations and top SaaS companies, making it integral to their operational success. ThousandEyes operates as a subsidiary of Cisco Systems, Inc.

OpenDNS

Series C in 2014
OpenDNS is a provider of Internet security and Domain Name System (DNS) services tailored for homes and businesses. The company specializes in delivering an extensive security network that encompasses web content filtering, anti-phishing measures, and reliable DNS infrastructure. These services empower consumers and administrators to safeguard their networks against online threats while facilitating the enforcement of internet usage policies. Through its innovative solutions, OpenDNS aims to enhance online safety and improve navigation for users across various platforms.

Benu Networks

Series B in 2013
Benu Networks is a privately held telecommunications software company based in Billerica, Massachusetts. The company specializes in developing innovative software solutions that simplify complex edge networks. Its next-generation Virtual Service Edge (VSE) platform integrates cable modem termination system (CMTS) functions, allowing network operators to create and deliver Internet Protocol (IP) services over a converged infrastructure. With over a decade of industry experience, Benu Networks focuses on transforming legacy networks, managing services elastically, and supporting the transition to 5G technology. The company is backed by reputable venture capital firms, underscoring its potential for growth and impact in the telecommunications sector.

Tower Cloud

Venture Round in 2013
Tower Cloud provides telecom backhaul services to wireless carriers. The company builds and operates fiber optic and wireless networks to connect cellular towers to the wireless carriers' mobile switching centers. Wireless carriers utilize Ethernet and Sonet T-1 broadband capacity provided by Tower Cloud to manage the exploding volume of voice and data traffic on their cellular networks. Tower Cloud currently operates backhaul networks in the greater Orlando, FL and Miami, FL markets and is in the process of constructing a new network in Atlanta, GA. The company was founded in 2006 and is headquartered in St. Petersburg, FL.

OpenDNS

Series B in 2013
OpenDNS is a provider of Internet security and Domain Name System (DNS) services tailored for homes and businesses. The company specializes in delivering an extensive security network that encompasses web content filtering, anti-phishing measures, and reliable DNS infrastructure. These services empower consumers and administrators to safeguard their networks against online threats while facilitating the enforcement of internet usage policies. Through its innovative solutions, OpenDNS aims to enhance online safety and improve navigation for users across various platforms.

Tower Cloud

Venture Round in 2012
Tower Cloud provides telecom backhaul services to wireless carriers. The company builds and operates fiber optic and wireless networks to connect cellular towers to the wireless carriers' mobile switching centers. Wireless carriers utilize Ethernet and Sonet T-1 broadband capacity provided by Tower Cloud to manage the exploding volume of voice and data traffic on their cellular networks. Tower Cloud currently operates backhaul networks in the greater Orlando, FL and Miami, FL markets and is in the process of constructing a new network in Atlanta, GA. The company was founded in 2006 and is headquartered in St. Petersburg, FL.

Ruckus Wireless

Series G in 2012
Ruckus Wireless, Inc., based in Sunnyvale, California, is a leading provider of advanced wireless systems tailored for the expanding mobile Internet infrastructure market. The company specializes in a diverse range of "Smart Wi-Fi" products designed for mobile carriers, broadband service providers, and corporate enterprises, serving over 48,000 end-customers globally. Ruckus addresses critical Wi-Fi capacity and coverage challenges driven by the increasing traffic on wireless networks, largely due to the widespread use of mobile devices such as smartphones and tablets. With a focus on innovation, Ruckus has developed patented technologies, including adaptive antenna arrays that enhance signal range, improve data rates, and minimize interference. This technology ensures the reliable delivery of multimedia content and services over standard Wi-Fi networks, enabling seamless connectivity for users.

Kineto Wireless

Venture Round in 2012
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

Tower Cloud

Venture Round in 2011
Tower Cloud provides telecom backhaul services to wireless carriers. The company builds and operates fiber optic and wireless networks to connect cellular towers to the wireless carriers' mobile switching centers. Wireless carriers utilize Ethernet and Sonet T-1 broadband capacity provided by Tower Cloud to manage the exploding volume of voice and data traffic on their cellular networks. Tower Cloud currently operates backhaul networks in the greater Orlando, FL and Miami, FL markets and is in the process of constructing a new network in Atlanta, GA. The company was founded in 2006 and is headquartered in St. Petersburg, FL.

Kineto Wireless

Debt Financing in 2010
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

Tower Cloud

Venture Round in 2009
Tower Cloud provides telecom backhaul services to wireless carriers. The company builds and operates fiber optic and wireless networks to connect cellular towers to the wireless carriers' mobile switching centers. Wireless carriers utilize Ethernet and Sonet T-1 broadband capacity provided by Tower Cloud to manage the exploding volume of voice and data traffic on their cellular networks. Tower Cloud currently operates backhaul networks in the greater Orlando, FL and Miami, FL markets and is in the process of constructing a new network in Atlanta, GA. The company was founded in 2006 and is headquartered in St. Petersburg, FL.

Kineto Wireless

Series D in 2008
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

Ruckus Wireless

Series E in 2007
Ruckus Wireless, Inc., based in Sunnyvale, California, is a leading provider of advanced wireless systems tailored for the expanding mobile Internet infrastructure market. The company specializes in a diverse range of "Smart Wi-Fi" products designed for mobile carriers, broadband service providers, and corporate enterprises, serving over 48,000 end-customers globally. Ruckus addresses critical Wi-Fi capacity and coverage challenges driven by the increasing traffic on wireless networks, largely due to the widespread use of mobile devices such as smartphones and tablets. With a focus on innovation, Ruckus has developed patented technologies, including adaptive antenna arrays that enhance signal range, improve data rates, and minimize interference. This technology ensures the reliable delivery of multimedia content and services over standard Wi-Fi networks, enabling seamless connectivity for users.

Kineto Wireless

Series C in 2007
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

Ruckus Wireless

Series B in 2005
Ruckus Wireless, Inc., based in Sunnyvale, California, is a leading provider of advanced wireless systems tailored for the expanding mobile Internet infrastructure market. The company specializes in a diverse range of "Smart Wi-Fi" products designed for mobile carriers, broadband service providers, and corporate enterprises, serving over 48,000 end-customers globally. Ruckus addresses critical Wi-Fi capacity and coverage challenges driven by the increasing traffic on wireless networks, largely due to the widespread use of mobile devices such as smartphones and tablets. With a focus on innovation, Ruckus has developed patented technologies, including adaptive antenna arrays that enhance signal range, improve data rates, and minimize interference. This technology ensures the reliable delivery of multimedia content and services over standard Wi-Fi networks, enabling seamless connectivity for users.

Infinera

Series E in 2004
Infinera Corporation is a global provider of optical transport networking equipment, software, and services, headquartered in Sunnyvale, California. The company specializes in photonic integration technology, offering a diverse portfolio that includes modular platforms, coherent optical transport systems, and packet-optical transport solutions. Its products, such as the Infinera Groove series and 7300 series, cater to various transport network applications, enabling high-capacity data transmission and management. Infinera's digital transport node system incorporates advanced technology for digital processing of network traffic. The company also provides a range of support services, including technical support, installation, and professional services. Infinera's customer base consists of telecommunications service providers, internet content providers, cable operators, research institutions, large enterprises, and government entities, all of whom rely on its solutions for efficient optical networking. Founded in 2000, Infinera continues to innovate in the field of optical networking, enhancing the capabilities of global communications infrastructure.

Kineto Wireless

Series C in 2004
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

Infinera

Series D in 2003
Infinera Corporation is a global provider of optical transport networking equipment, software, and services, headquartered in Sunnyvale, California. The company specializes in photonic integration technology, offering a diverse portfolio that includes modular platforms, coherent optical transport systems, and packet-optical transport solutions. Its products, such as the Infinera Groove series and 7300 series, cater to various transport network applications, enabling high-capacity data transmission and management. Infinera's digital transport node system incorporates advanced technology for digital processing of network traffic. The company also provides a range of support services, including technical support, installation, and professional services. Infinera's customer base consists of telecommunications service providers, internet content providers, cable operators, research institutions, large enterprises, and government entities, all of whom rely on its solutions for efficient optical networking. Founded in 2000, Infinera continues to innovate in the field of optical networking, enhancing the capabilities of global communications infrastructure.

Kineto Wireless

Series B in 2003
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

TollBridge Technologies

Series D in 2001
TollBridge Technologies is a leading provider of voice-over-broadband solutions tailored for next-generation carriers, boasting over 40,000 lines in active commercial service. The company specializes in developing IP-based voice systems that deliver cost-effective, toll-quality voice and integrated data services. Its VoIP gateways utilize the TollVoice architecture, enabling the seamless transmission of voice from IP networks through Class 5 switches. This technology supports both small business and consumer markets, compatible with various broadband access technologies, including DSL, cable, and wireless networks. Through its innovative solutions, TollBridge Technologies plays a pivotal role in advancing the capabilities of voice communications in the digital age.

Kineto Wireless

Series A in 2001
Kineto Wireless is a privately held company that specializes in assisting mobile operators with the transition to IP-based services. The company's solutions are designed to help operators compete against over-the-top (OTT) service providers by enhancing their voice and messaging services using Rich Communications Suite (RCS) technology through its Smart Comms application. Additionally, Kineto offers Smart Wi-Fi, which converts existing Wi-Fi access points into virtual femtocells on the mobile operator’s network. This allows smartphone users to receive various mobile services over Wi-Fi, including voice, short messaging services, data, instant messaging services and web-based services. The company's notable customers and partners include major telecommunications companies such as Orange, Rogers Wireless, T-Mobile USA, Huawei, Samsung Group, and ZTE.

TollBridge Technologies

Venture Round in 2000
TollBridge Technologies is a leading provider of voice-over-broadband solutions tailored for next-generation carriers, boasting over 40,000 lines in active commercial service. The company specializes in developing IP-based voice systems that deliver cost-effective, toll-quality voice and integrated data services. Its VoIP gateways utilize the TollVoice architecture, enabling the seamless transmission of voice from IP networks through Class 5 switches. This technology supports both small business and consumer markets, compatible with various broadband access technologies, including DSL, cable, and wireless networks. Through its innovative solutions, TollBridge Technologies plays a pivotal role in advancing the capabilities of voice communications in the digital age.
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