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Startup · United States

Ayar Labs

HQ San JoseFounded 201551-200 employees

Ayar Labs’ CPO solutions connect thousands of GPUs across multiple racks into a single unified cluster via optical fabric, delivering the connectivity hyperscalers need to unleash next-generation AI performance.

Startup
Website
Total raised
$1.02B
9 rounds
Last round
$225M
Secondary · Sep 10, 2026
Systems
2

Funding9 rounds · $1.02B

Equity raised
$1.02B
Debt, secondaries & grants
$225M
Latest
$225MSecondary · Sep 10, 2026
Last valuation
$5.00B?Basis not stated · Secondary · Sep 10, 2026
Cumulative raised$1.02B
Nov 7, 2018Sep 10, 2026
Valuation over time$5.00B · Sep 10, 2026
Valuation over timeReported valuation rose from $1.00B (Dec 11, 2024) to $5.00B (Sep 10, 2026) across 3 valued rounds. 3 without a stated pre/post basis.
Valuations by round
AnnouncedStageValuationBasis
Dec 11, 2024Series D$1.00BBasis not stated
Mar 3, 2026Series E+$3.75BBasis not stated
Sep 10, 2026Secondary$5.00BBasis not stated

Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.

Systems2

SuperNova

An external light source for optical interconnects.

Maturity not rated

TeraPHY

An optical engine for chip interconnects.

Maturity not rated

Newest unveiled first. Open a system for its milestone timeline, components and sources.

People9

All 9 people →

Sources12

Show all 12 sources and supporting evidence

Profile2

  1. 1
    DatabaseAyar Labs - PitchBook company profile

    PitchBook · Supports Organization · country, Organization · employee range, Organization · founded year, Organization · linkedin url, Organization · x url

    “country: US”
  2. 2
    DatabaseSixth-Domain public startups directory

    Sixth-Domain · Supports Organization · kind

    “{"group": "startups", "id": "17799b44-9b4c-48ff-b44a-884d36f74447", "name": "Ayar Labs"}”

Systems1

  1. 3
    CompanyAyar Labs: AI Scale-up Beyond the Rack

    Ayar Labs · Supports Organization · description, Organization · name, Organization · website, System

    “Ayar Labs’ CPO solutions connect thousands of GPUs across multiple racks into a single unified cluster via optical fabric, delivering the connectivity hyperscalers need to unleash next-generation AI performance.”

Funding8

  1. 4
    NewsAyar Labs, backed by chip giants, extends funding round by $150 million

    Reuters · Sep 10, 2026 · Supports Funding round, Funding round · amount, Funding round · post money valuation usd, Organization · ownership

    “joined Ayar's backers”
  2. 5
    CompanyAyar Labs Closes $500M Series E, Accelerates Volume Production of Co‑Packaged Optics

    Ayar Labs · Mar 3, 2026 · Supports Funding round · amount

    “announced the closing of $500 million in Series E funding led by Neuberger Berman”
  3. 6
    NewsNvidia-backed Ayar Labs raises $500 million at $3.75 billion valuation

    Reuters · Mar 3, 2026 · Supports Funding round · post money valuation usd

    “it has raised $500 million in a series E round at a valuation of $3.75 billion”
  4. 7
    CompanyAyar Labs, with Investments from AMD, Intel Capital, and NVIDIA, Secures $155 million to Address Urgent Need for Scalable, Cost-Effective AI Infrastructure

    Ayar Labs · Dec 11, 2024 · Supports Funding round · amount, Funding round · post money valuation usd

    “has secured $155 million in financing led by Advent Global Opportunities and Light Street Capital”
  5. 8
    CompanyAyar Labs Raises $130 Million in Series C Funding, Accelerating Commercialization of Industry’s First In-Package Optical I/O Products

    Ayar Labs · Apr 26, 2022 · Supports Funding round · amount

    “has secured $130 million in additional financing led by Boardman Bay Capital Management”
  6. 9
    NewsHere's the pitch deck that chip startup Ayar Labs used to raise a $35 million Series B

    Business Insider · Nov 6, 2020 · Supports Funding round, Funding round · amount

    “The Series B round was led by Downing Ventures and BlueSky Capital”
  7. 10
    NewsAyar Labs lights up $24m series A

    Global Venturing · Nov 9, 2018 · Supports Funding round, Funding round · amount

    “Venture capital fund and incubator Playground Global led the round”
  8. 11
    NewsAyar Labs Adds $25 Million in Expansion of Its $130 Million Series C

    Global Semiconductor Alliance · Supports Funding round · amount

    “raised an additional $25 million in Series C1 funding”

People1

  1. 12
    DatabaseAyar Labs - Crunchbase company profile

    Crunchbase · Supports Organization · country, Organization · employee range, Organization · hq city, Organization · linkedin url, Organization · x url, Role

    “country: US”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.