Funding round
Ayar Labs Series D
Ayar Labs, which works in optical i/o technology development in San Jose, raised $155M in a Series D round announced on 11 Dec 2024, led by Advent International and Light Street Capital, at a $1.00B post-money valuation. 16 firms took part, 9 of them already investors. It is Ayar Labs' fifth venture round on record; the one before was a Series C in Apr 2022.
$155M
Amount raised
$1.00B
Post-money valuation
$845M pre-money
16
Investors
2 leads
16%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Ayar Labs at $1.00B after the new money. The $155M bought investors about 16% of the company. It came 32 months after Ayar Labs' Series C. It is 18% of the $847M Ayar Labs has raised in the venture rounds on record. Ayar Labs raised again 15 months later: a Series E round of $500M in Mar 2026, at $3.75B post-money.
Ayar Labs' funding rounds
Ayar Labs has 6 venture rounds on record and 1 other deal. This one is highlighted.
- Seed 1 Aug 2016 $2.5M
- Series A 7 Nov 2018, led by Playground $24M
- Debt not a venture round 1 Apr 2019 $3.0M
- Series B 5 Nov 2020, led by Downing Ventures and BlueSky Capital $35M
- Series C 1 Apr 2022, led by Boardman Bay $130M
- Series D this round 11 Dec 2024, led by Advent International and Light Street Capital $155M$1.00B post-money
- Series E 3 Mar 2026, led by Neuberger Berman $500M$3.75B post-money
Investors
Who put money in
Advent International and Light Street Capital led the round with 14 other firms. Applied Ventures LLC, AXIAL PARTNERS, Boardman Bay and Foresight Ventures and 5 more had backed Ayar Labs before.
Lead investors
- Advent International backs 36 venture-backed companies new investor
- Light Street Capital new investor
Also in the round
- AMD Ventures new investor
- Intel Capital backs 239 venture-backed companies new investor
- NVIDIA new investor
- 3M Ventures new investor
- backs 6 venture-backed companies new investor
- Applied Ventures LLC existing investor
- backs 2 venture-backed companies existing investor
- backs 7 venture-backed companies existing investor
- backs 42 venture-backed companies existing investor
- GlobalFoundries existing investor
- backs 35 venture-backed companies existing investor
- Lockheed Martin Ventures existing investor
- backs 51 venture-backed companies existing investor
- VentureTech Alliance existing investor
Joined the board: Jordan Katz (Advent Global Opportunities).
Use of proceeds
What the money is for
According to the announcement, the money goes to hiring, product development, scaling operations and working capital.
- Hiring
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
13 Series D rounds in Electronical Components Manufacturing within a year either side disclosed an amount; the median was $75M, and this round was 2.1 times the median. The closest in time, other companies' Series D rounds in Electronical Components Manufacturing:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Electronical Components Manufacturing | 3 Dec 2024 | $35M | not disclosed | Decarbonization Partners |
| Electronical Components Manufacturing | 19 Nov 2024 | $60M | not disclosed | Virala Group |
| Lightmatter Electronical Components Manufacturing | 16 Oct 2024 | $400M | $4.40B | T. Rowe Price |
| Electronical Components Manufacturing | 31 Mar 2025 | $75M | not disclosed | Spark Capital |
| Electronical Components Manufacturing | 3 Mar 2025 | $40M | not disclosed | Sutter Hill Ventures |
| Groq Electronical Components Manufacturing | 5 Aug 2024 | $640M | $2.80B | BlackRock Private Equity Partners and BlackRock |
| Electronical Components Manufacturing | 25 Jun 2025 | $62M | not disclosed | Innovation Industries and Invest-NL |
| Electronical Components Manufacturing | 22 Sep 2025 | $140M | not disclosed | Fidelity Management & Research Company |
Sources
Where this comes from
Reported by 2 sources.
Questions
Frequently asked
How much did Ayar Labs raise in its Series D round?
Ayar Labs raised $155M in its Series D round, announced in Dec 2024.
Who led Ayar Labs' Series D round?
Advent International and Light Street Capital led it, with AMD Ventures, Intel Capital, NVIDIA, 3M Ventures and Autopilot and 9 more.
What was Ayar Labs' valuation at the Series D round?
$1.00B post-money ($845M pre-money).
How does it compare with other Series D rounds in Electronical Components Manufacturing?
13 Series D rounds in Electronical Components Manufacturing within a year either side disclosed an amount; the median was $75M, and this round was 2.1 times the median.
Did Ayar Labs raise again after this round?
Yes: a Series E round in Mar 2026 of $500M at $3.75B post-money.