Calyxo

Pleasanton, CA · Founded 2016 · Privately Held (backing)

Developer of minimally invasive medical devices designed to improve kidney stone treatment outcomes. Calyxo is based in Pleasanton, CA and was founded in 2016. It was valued at $685 million at its later-stage round in Apr 2026, the last priced event on record. It has raised $166 million across 4 recorded rounds; the latest was a $40.1 million early-stage round in Apr 2026.

PMV mark · valuation
$684.6M
Oct 2026
Priced at
its later-stage round
Apr 2026
Total raised
$166.0M
Last round
Early Stage VC
Apr 2026
How much has Calyxo raised?
$166.0Macross 4 recorded rounds · Jan 2022 – Apr 2026

Most recently, Calyxo raised $40.1M in its Early Stage VC (Apr 2026).

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Calyxo round by round

4 rounds
Apr 2026Early Stage VC$40.1MSEC filing▮
12 investors participated
Dec 2024Early Stage VC$28.3MSEC filing▮
10 investors participated
Oct 2023Later Stage VC$50.0MSEC filing▮
16 investors participated
Jan 2022Early Stage VC$22.7MSEC filing▮
18 investors participated

How much has Calyxo raised?

Calyxo has raised $166 million across 4 recorded rounds since 2022. The largest was a $50 million later-stage round in Oct 2023; the most recent was a $40.1 million early-stage round in Apr 2026.

Calyxo has filed 4 Form Ds with the SEC since 2022, most recently in Apr 2026 ($40.1 million sold to 12 investors).

Calyxo investors

7 investors are on record for Calyxo, including Ally Bridge Group, Avidity Partners, CRG and Janus Henderson Investors. The early-stage round in Apr 2026 drew 12 investors.

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Frequently asked about Calyxo

How much has Calyxo raised?
Calyxo has raised $166.0M in total across 4 recorded funding rounds.
When was Calyxo's last funding round?
Calyxo's most recent recorded round was Early Stage VC in Apr 2026, raising $40.1M.