INPHI

What INPHI does

INPHI Corporation was a semiconductor company founded in 2000 and headquartered in Santa Clara, California that designed high-speed analog and mixed-signal integrated circuits for data center and communications networks. Its core products centered on the analog and DSP building blocks of optical interconnects — coherent DSPs, PAM DSPs, transimpedance amplifiers, linear drivers, and related components — enabling 100G to 400G+ transmission over fiber for cloud data centers, telecom carriers, and enterprise networks. The company sold to a concentrated set of hyperscale data center operators, major OEMs, and tier-1 carriers through direct sales and engineering engagement, with a B2B pricing model based on negotiated per-unit pricing on long-lived design wins.

The company went public on NASDAQ under ticker IPHI in 2012 and pursued an inorganic growth strategy, acquiring Cortina Systems in 2014 for approximately $131 million, ClariPhy Communications in 2016 for approximately $275 million (adding coherent DSP technology), and eSilicon in 2019 for approximately $216 million (adding custom ASIC and SerDes capability). These acquisitions, combined with organic R&D, built a vertically integrated portfolio of analog IP, DSPs, and ASIC design capability aimed at the transition from electrical to optical interconnects in next-generation data centers. Ford Tamer served as CEO through the company's final independent years before departing in 2024.

In 2021 Marvell Technology completed its acquisition of INPHI for approximately $10 billion, after which INPHI ceased to exist as a standalone public entity and was integrated into Marvell's data infrastructure business as a wholly-owned subsidiary. The transaction delivered Marvell the optical interconnect, coherent DSP, and silicon photonics technology that has since become central to its AI infrastructure strategy, contributing to Marvell's pivot from less than 10% data center revenue in 2016 to more than 75% in FY2025 and its positioning as a critical AI infrastructure supplier to hyperscalers such as AWS, Microsoft, and Google.

Name

INPHI

Legal name

INPHI Corporation

Website

https://inphi.com

Company type

Private

Founded year

2000

Operating status

Acquired

Headcount range

501–1,000 employees

Short description

INPHI Corporation, founded in 2000 and based in Santa Clara, California, designed high-speed analog and mixed-signal semiconductors for optical data interconnects in cloud data centers and communications networks. It was acquired by Marvell Technology in 2021 for approximately $10 billion.

Ownership category

akta.pro rank

Product category

High-Speed Semiconductor Components

NAICS

Semiconductor and Related Device Manufacturing (334413)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Networking & Data Center Silicon (Switch/NIC/DPU/SerDes) (HDAHABAB)

akta.pro secondary industry

Interface ICs (USB/HDMI/SerDes/Level Shifters) (HDAHAIAD)

Keywords

• High-speed analog semiconductors
• Optical interconnect solutions
• Data center semiconductor
• Coherent DSP chips
• Communications semiconductor

Headquarters

HQ city

San Jose

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Supply Chain, Operations, Personnel, Marketing or Sales

Revenue model

1. Custom Silicon/ASIC: Revenue from custom silicon co-design partnerships with hyperscalers including AWS, Microsoft, and Google. Marvell designs and manufactures custom chips tailored to specific customer requirements.
2. Data Center Semiconductor Products: Standard semiconductor products including interconnect solutions, network switches, Ethernet controllers, PHYs, coherent DSPs, and data processing units for data center infrastructure. Revenue grew from less than 10% of total in 2016 to more than 75% currently.
3. Enterprise and Carrier Semiconductor Products: Networking, storage, and compute semiconductors for enterprise networks and 5G carrier infrastructure including OCTEON processors and security solutions.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels10 records

Core offering

INPHI designs and sells high-speed analog and mixed-signal semiconductor solutions for data center and communications networks. Its portfolio includes coherent DSPs, PAM DSPs, linear drivers, transimpedance amplifiers, and optical interconnect components that enable high-bandwidth optical transmission at 400G, 800G, and 1.6T speeds. The company was acquired by Marvell Technology in 2021 for approximately $10 billion and now operates as a wholly-owned subsidiary contributing optical interconnect technology to Marvell's AI infrastructure portfolio.

Product overview

Marvell Technology (which acquired INPHI in 2021 for $10 billion) offers a comprehensive portfolio of semiconductor solutions spanning custom silicon design services and a broad range of interconnect, switching, compute, storage, and networking products. The product portfolio includes: OCTEON multi-core processors and Teralynx high-radix Ethernet switches for AI data center infrastructure; Data Processing Units (DPUs) for data center acceleration; Coherent DSPs and PAM DSPs for optical communications at speeds from 400G to 1.6T; Ethernet Controllers, PHYs, and PCIe Retimers for network connectivity; CXL switching solutions for memory and compute disaggregation; Custom ASIC design services for hyperscaler co-design partnerships; Security Solutions, SSD and HDD storage controllers, and Fibre Channel adapters for storage; plus specialized optical components including Linear Drivers and Transimpedance Amplifiers. The company positions itself as a critical AI infrastructure partner providing end-to-end solutions from custom compute to rack, row, data center, campus and multi-campus connectivity.

Differentiator

Problem solved

Functional benefit

Products and services

• Coherent DSPs Digital signal processors for coherent optical communications enabling long-haul and data center interconnect transmissions at 400G and 800G speeds.
• Coherent-lite DSPs Lower-power coherent DSP solutions designed for shorter-reach optical links within data centers and campus networks.
• PAM DSPs Digital signal processors for PAM4 modulation enabling 400G and 800G short-reach optical interconnects within data centers.
• Linear Drivers Analog components for optical module applications enabling driver circuitry for laser modulation in optical transceivers.
• Transimpedance Amplifiers Analog components that convert optical signals to electrical signals in optical receiver applications for high-speed communications.
• DCI Optical Modules Optical transceiver modules for data center interconnect applications enabling high-bandwidth connectivity between geographically separated data centers.

Quantifiable outcome

• Data center revenue grew from less than 10% in 2016 to more than 75% currently
• +6 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Nine partnerships are on record, tiered core, flagship and strategic.

• Nvidia NVLink FusioncoreStrategic or Co-development Partner · 1 January 2026Marvell joined NVIDIA's NVLink Fusion ecosystem as an industry-first optical interconnect partner, enabling connectivity solutions for NVIDIA's next-generation AI infrastructure.
• NvidiaflagshipStrategic or Co-development Partner · 1 March 2024Nvidia invested $2 billion in Marvell in March 2024 as part of an expanded strategic partnership covering optics, photonics, and NVLink Fusion. Nvidia CEO Jensen Huang publicly endorsed Marvell at Computex 2026, predicting it could become the next trillion-dollar company. The partnership advances Marvell's silicon photonics interconnect technology and positions Marvell as central to NVIDIA's AI ecosystem expansion.
• Amazon Web Services (AWS)flagshipStrategic or Co-development PartnerCustom silicon co-design partnership with AWS for AI infrastructure. Marvell designs custom chips tailored for AWS's unique AI data-center architectures.
• MicrosoftflagshipStrategic or Co-development PartnerCustom silicon co-design partnership with Microsoft for AI infrastructure solutions.
• GoogleflagshipStrategic or Co-development PartnerCustom silicon co-design partnership with Google for AI infrastructure solutions.
• Celestial AIstrategicStrategic or Co-development PartnerAcquired by Marvell to build silicon photonics and optical interconnect capabilities for AI infrastructure.
• PolaritonstrategicStrategic or Co-development PartnerMarvell acquired Polariton to advance the future of optical connectivity for AI data centers.
• InphiflagshipStrategic or Co-development PartnerMarvell acquired Inphi in 2020 for approximately $10 billion to build its optical interconnect and silicon photonics technology platform, which became central to Marvell's AI infrastructure strategy.
• CaviumflagshipStrategic or Co-development PartnerMarvell acquired Cavium in 2018 for approximately $6 billion as part of its transformation toward data infrastructure semiconductors, adding OCTEON processors and networking capabilities.

Scale indicators13 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• MACOM Technology Solutions: MACOM designs high-performance analog RF, microwave, and photonic semiconductors for data center, telecom, and industrial applications — directly overlapping with INPHI's legacy high-speed analog and optical portfolio.
• Broadcom: Broadcom is a direct competitor in custom ASIC design for hyperscalers (Google TPU, Meta MTIA) and in high-speed networking/photonic silicon, going head-to-head with the Marvell/INPHI platform for flagship AI infrastructure design wins.
• Semtech: Semtech produces analog and mixed-signal semiconductors for communications infrastructure, optical networking, and data center applications, closely mirroring INPHI's original product positioning in high-speed interconnect ICs.

Broad incumbents

• Texas Instruments: Texas Instruments is a broad analog and mixed-signal incumbent with a large high-speed signal chain and SerDes portfolio that overlaps with INPHI's analog heritage, particularly in interface and amplifier ICs for communications.
• Marvell Technology: Marvell is INPHI's parent company and the broader data-infrastructure semiconductor incumbent that now houses INPHI's technology; it competes in networking, storage, compute, and custom silicon with a much wider portfolio than INPHI alone.
• Coherent Corp (formerly II-VI): Coherent is a major broad incumbent in photonic components, transceivers, and laser/optical materials, providing complementary and competing solutions to INPHI/Marvell's optical interconnect portfolio for data center and telecom.
• Lumentum Holdings: Lumentum is a leading photonics and optical component supplier for data center interconnect, telecom, and 3D sensing — overlapping with INPHI/Marvell's optical interconnect ecosystem as an adjacent broad incumbent.
• Cisco Silicon One: Cisco's Silicon One division produces high-radix networking ASICs and switches that compete directly with Marvell's Teralynx family (which INPHI's technology supports) in hyperscaler, service provider, and enterprise routing deployments.

Emerging players

• Astera Labs: Astera Labs is an emerging AI-connectivity silicon company focused on retimers, DSPs, and PCIe/CXL interconnect for AI clusters. It targets the same hyperscaler customers as INPHI/Marvell and represents the most direct new-entrant threat in AI fabric silicon.
• Alphawave Semi: Alphawave Semi specializes in high-speed SerDes, PAM4 DSPs, and connectivity IP/cores for data center and AI infrastructure, making it a focused emerging competitor in the connectivity silicon category INPHI pioneered.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/inphicorp
• Facebookfacebook.com/Inphi-Corporation-102240468173719
• LinkedInlinkedin.com/company/inphi-corporation

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds6 records

Investors12 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A3 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about INPHI