eSilicon
eSilicon was a private semiconductor design and manufacturing services company, founded in 1999 in Sunnyvale, California, that delivered custom ASICs and semiconductor IP to hyperscalers, carriers, and enterprise OEMs across AI, data center, 5G, and networking markets before being acquired by Marvell Technology.
- Company typePrivate
- Founded1999
- HeadquartersSunnyvale, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What eSilicon does
eSilicon was a private semiconductor design and manufacturing services company founded in 1999 and headquartered in Sunnyvale, California. Historically, the company delivered custom application-specific integrated circuits (ASICs) and semiconductor intellectual property (IP) to OEMs and hyperscalers across AI, data center, 5G, IoT, and networking markets, with a workforce in the 251–500 employee range and cumulative disclosed funding of approximately $118 million across ten rounds between 1999 and 2019.
The company's underlying technology stack spans custom ASICs, data processing units, Compute Express Link (CXL) switching, Ethernet physical layer devices and controllers, coherent and PAM DSPs, optical modules, PCIe retimers, and storage controllers. Differentiated technical assets include the first monolithic 102.4 Tbps data center switch, industry-first 1.6T optical DSPs, NVLink Fusion-compatible silicon, and a comprehensive interconnect portfolio that covers custom compute through rack, row, data center, campus, and multi-campus connectivity. Historical acquisitions include SwitchCore AB (2008), Silicon Design Solutions (2010), and Elastix Corporation (2011), each of which extended the IP and design-services footprint.
eSilicon's business model historically combined one-time ASIC design fees with subsequent chip production revenue, recurring IP licensing royalties, and, post-Marvell integration, hardware sales of networking and storage products. GTM operated through direct enterprise field sales targeting hyperscalers, global carriers, and enterprise customers, supplemented by inside sales through a customer portal, with quote-based pricing for large engagements and a horizontal segmentation approach spanning data center, enterprise, and carrier segments. As of the most recent data, esilicon.com redirects to Marvell Technology, Inc., indicating that eSilicon has been acquired by Marvell and no longer operates as an independent company.
eSilicon firmographics
Firmographics- Name
- eSilicon
- Legal name
- Marvell Technology, Inc.
- Website
- https://esilicon.com
- Company type
- Private
- Founded year
- 1999
- Operating status
- Acquired
- Headcount range
- 251–500 employees
- Short description
- eSilicon was a private semiconductor design and manufacturing services company, founded in 1999 in Sunnyvale, California, that delivered custom ASICs and semiconductor IP to hyperscalers, carriers, and enterprise OEMs across AI, data center, 5G, and networking markets before being acquired by Marvell Technology.
- Ownership category
- akta.pro rank
eSilicon industry classification
Industry- Product category
- Semiconductor IP and Custom ASIC Design
- NAICS
- Semiconductor and Other Electronic Component Manufacturing (3344), Semiconductor and Other Electronic Component Manufacturing (33441)
- SIC
- Electronic Components, Nec (3679)
- akta.pro primary industry
- Custom & Application-Specific ASIC Design Services (HDAHABAJ)
- akta.pro secondary industries
- Analog & Mixed-Signal ICs (HDAHAAAD), Interface ICs (USB/HDMI/SerDes/Level Shifters) (HDAHAIAD), Analog Front-End (AFE) ICs (Sensor/Medical/Industrial AFE) (HDAHAIAJ)
Keywords
Where eSilicon is headquartered
LocationHeadquarters
- HQ city
- Sunnyvale
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
eSilicon business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales
Revenue model
- Custom ASIC Design Services: Design and manufacturing of custom application-specific integrated circuits for hyperscalers, carriers, and enterprise customers. Revenue generated through one-time design fees and subsequent chip production.
- Semiconductor IP Licensing: Licensing of semiconductor intellectual property cores including processor IP, interface IP, and memory IP for AI, 5G, IoT, and other applications. Generates recurring licensing royalties from chip manufacturers.
- Network and Connectivity Products: Sale of interconnect products including Ethernet switches, controllers, PHYs, coherent DSPs, CXL solutions, and optical modules for data center, enterprise, and carrier deployments.
- Storage Solutions: Storage accelerators, SSD controllers, and HDD controllers for enterprise and data center storage infrastructure.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels6 records
eSilicon product offering
Product offeringCore offering
eSilicon is a semiconductor design and manufacturing services company that delivers custom ICs (application-specific integrated circuits) and semiconductor IP to OEMs. It provided custom ASIC design services and licensed semiconductor intellectual property (processor, interface, and memory IP) for AI, 5G, IoT, and data center applications. Following its acquisition by Marvell Technology, Inc., eSilicon's offerings are now subsumed within Marvell's broader custom silicon and interconnect portfolio.
Product overview
Marvell Technology (operating through esilicon.com) offers a comprehensive portfolio of semiconductor solutions organized into Compute, Networking, Storage, and Custom categories. The core offerings include custom ASICs and Government Solutions for specialized applications, Data Processing Units and CXL switching for AI infrastructure, and a full range of networking products including Data Center Switches (up to 102.4 Tbps), Enterprise Switches, Ethernet Controllers and PHYs. The Storage portfolio comprises Fibre Channel adapters, HDD controllers, SSD Controllers, and Storage Accelerators. Optical connectivity is addressed through Coherent DSPs, Coherent-lite DSPs, PAM DSPs, DCI Optical Modules, Linear Drivers, and Transimpedance Amplifiers. Additional solutions include Security Solutions and PCIe Retimers. The company positions itself as a critical AI infrastructure partner for hyperscalers, enabling AI data center architectures from custom compute to rack, row, data center, campus and multi-campus connectivity.
Differentiator
Problem solved
Functional benefit
Products and services
- Custom ASIC Design Services Custom application-specific integrated circuit (ASIC) design services for OEMs in AI, data center, enterprise, and carrier deployments. Includes specification, design, verification, and manufacturing handoff to foundry partners.
- Semiconductor IP Cores Licensing of semiconductor intellectual property cores including processor IP, interface IP, and memory IP for chip manufacturers targeting AI, 5G, IoT, and other applications. Generates recurring licensing royalties from chip manufacturers.
Quantifiable outcome
- First Monolithic 102.4 Tbps Switch for AI Cloud Data Centers
- +2 more outcomes
Companies that use eSilicon
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
eSilicon technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
eSilicon partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and flagship.
- NVIDIAcoreStrategic partnership to expand the AI ecosystem through NVLink Fusion. Marvell joins forces with NVIDIA to enable AI ecosystem expansion, integrating solutions compatible with NVIDIA's NVLink Fusion platform for next-generation AI infrastructure.
- PolaritonflagshipMarvell acquired Polariton to advance the future of optical connectivity. This acquisition strengthens Marvell's optical technology portfolio for AI infrastructure and data center connectivity solutions.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
eSilicon competitors and assessment
Company assessmentEmerging players
- Astera Labs: Astera Labs designs CXL, PCIe retimers, and fabric connectivity silicon purpose-built for AI cloud infrastructure. Comparable to the CXL and PCIe retimer portions of eSilicon's product portfolio and competes for AI fabric design wins.
- Credo Technology: Credo builds high-speed optical and active electrical cable DSPs for hyperscale data centers. Directly comparable to eSilicon's PAM DSPs, transimpedance amplifiers, and linear drivers in the optical interconnect stack.
- SiFive: SiFive licenses RISC-V-based processor IP for custom silicon, particularly for AI and data center applications. Competes for the same IP/design-services wallet share as eSilicon in emerging custom AI compute workloads.
Broad incumbents
- Marvell Technology: Marvell is the strategic acquirer of eSilicon and now operates through esilicon.com. It is a broad semiconductor incumbent spanning custom ASICs, networking switches, optical DSPs, and storage controllers - overlapping eSilicon's portfolio and serving the same hyperscaler customers.
- Arm Holdings: Arm is the dominant semiconductor IP licensor for processor cores used in custom AI and networking SoCs. Directly comparable to the IP-licensing stream identified for eSilicon and increasingly a competitor in custom AI silicon via CSS.
- Synopsys: Synopsys dominates semiconductor IP licensing and EDA tools used in every ASIC design flow. Comparable to the 'semiconductor IP licensing' revenue stream identified for eSilicon and represents the tooling backbone of the same custom-silicon market.
- Cadence Design Systems: Cadence is the other major EDA and IP provider, supplying tools and IP blocks leveraged by ASIC designs. Adjacent competitor to the design-services and IP portions of eSilicon's offering.
- Broadcom: Broadcom is a leading custom-AI-silicon partner (e.g., Google's TPU, Meta's MTIA) and supplies networking switches and DPUs to hyperscalers. Competes head-to-head with eSilicon/Marvell for next-generation AI custom silicon and data center switch sockets.
Direct peers
- GlobalUnichip Corp: GlobalUnichip (GUC) is a Taiwan-based fabless ASIC design service provider serving hyperscalers, networking, and AI customers. Directly comparable to eSilicon in business model, customer base, and custom silicon focus.
- Alchip Technologies: Alchip is a pure-play fabless ASIC design house that delivers custom silicon for hyperscalers and OEMs, most directly comparable to eSilicon's historical custom ASIC design services business. Both compete for the same hyperscaler design wins in AI and networking.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
eSilicon social profiles
Digital presenceeSilicon financial estimates
Financial estimateRevenue estimate
Valuation estimate
eSilicon leadership team
Management profileNumber of profiles
eSilicon funding detail
Funding detailFunding overview
Funding rounds10 records
Investors12 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
eSilicon M&A and investment
M&A and investmentM&A3 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about eSilicon
What does eSilicon do?
eSilicon is a semiconductor design and manufacturing services company that delivers custom ICs (application-specific integrated circuits) and semiconductor IP to OEMs. It provided custom ASIC design services and licensed semiconductor intellectual property (processor, interface, and memory IP) for AI, 5G, IoT, and data center applications. Following its acquisition by Marvell Technology, Inc., eSilicon's offerings are now subsumed within Marvell's broader custom silicon and interconnect portfolio.
Is eSilicon a public or private company?
eSilicon is a private company. It is classified as corporate owned and is currently acquired.
When was eSilicon founded?
eSilicon was founded in 1999. It employs 251 to 500 people.
Where is eSilicon based?
eSilicon is headquartered in Sunnyvale, United States, in the North America region.
How does eSilicon make money?
Four revenue lines are on record. Custom ASIC Design Services are the primary driver. The others are semiconductor IP Licensing, network and Connectivity Products and storage Solutions.
Who are eSilicon's main competitors?
Emerging players on record are Astera Labs, Credo Technology and SiFive. Broad incumbents are Marvell Technology, Arm Holdings, Synopsys, Cadence Design Systems and Broadcom. Direct peers are GlobalUnichip Corp and Alchip Technologies.
Does eSilicon have an API?
No public API is recorded for eSilicon.
What industry is eSilicon in?
eSilicon's product category is Semiconductor IP and Custom ASIC Design. Its primary akta.pro industry code is HDAHABAJ, Custom & Application-Specific ASIC Design Services, with a secondary code of HDAHAAAD, Analog & Mixed-Signal ICs. Its NAICS code is 3344 and its SIC code is 3679.