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Startup

Ayar Labs

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
$1.25B
9 rounds
Last round
$225M
Secondary · Sep 10, 2026

Funding9 rounds · $1.25B

Disclosed
$1.25B
Latest
$225MSecondary · Sep 10, 2026
Cumulative raised$1.24B
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

Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.

Sources10

Profile2

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

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

    “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.”
  2. 2
    DatabaseSixth-Domain public startup directory

    Sixth-Domain · Supports Organization · kind

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

Funding8

  1. 3
    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

    “joined Ayar's backers”
  2. 4
    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. 5
    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. 6
    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. 7
    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. 8
    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. 9
    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. 10
    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”

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