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Masimo
ActiveOperating status — whether the company still runs independently. “Closed” usually means it was acquired, merged, or shut down.🔥 HighHeat score — how much recent activity & attention the company has (web traffic, news, hiring).📈 Low growthGrowth score — momentum trend across web traffic, headcount and other growth signals. Irvine, California, United States Founded 1989 1001-5000 employees For Profit
Masimo is a medical technology company that develops and manufactures noninvasive patient monitoring devices for healthcare settings.
Masimo on Acquirezy — acquisitions, funding rounds, investments, investors, key people & contacts.
Masimo was acquired by Danaher in 2026 for $9.9B.
Total Funding
$754.95M
Funding Rounds
4
Last Funding
Acquisitions
6
Investments
2
1 exits
Monthly Visits
Contacts
1,605
Ticker
MASI
NASDAQ
Patents
861
254 trademarks
About Masimo
Funding & Financials
- Total funding
- Funding rounds
- Last funding
- Last funding type
- Last funding date
- Funding status
- Total equity funding
- Revenue range
IPO & Stock
- IPO status
- Public
- Ticker
- MASI
- Exchange
- NASDAQ
- IPO date
- Aug 8, 2007
- Raised at IPO
- $202.6M
Web Traffic
- Monthly visits
- Global traffic rank
- 6-mo avg visits
- Visit duration (s)
- Pages / visit
- Bounce rate
- Rank change (mo)
Technology & IP
- Active technologies
- 88
- Mobile apps
- 1
- Active products
- 21
- Patents granted
- 861
- Trademarks
- 254
- Top patent class
- Medical Or Veterinary Science; Hygiene
- IT spend
- $77.17M
Investor Activity
- Investments
- 2
- Lead investments
- 2
- Portfolio orgs
- 2
- Exits
- 1
Company Info
- Founded
- 1989
- Employees
- 1001-5000
- Operating status
- Active
- Company type
- For Profit
- Org types
- company, investor
- Founders
- 2
- Sub-organizations
- 1
- News articles
- 877
- Events
- 1
- HQ
- Irvine, California, United States
- Region
- Greater Los Angeles Area, West Coast, Western US
- Exit date
- Aug 8, 2007
Signals & Scores
- Heat score
- High
- Growth score
- Low
- Trend (7d)
- 0.4
- Trend (30d)
- 2
- Trend (90d)
- 2.1
- Last leadership hire
- Jun 10, 2026
- Last layoff mention
- Dec 12, 2024
Masimo Funding Rounds
4 results
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| Organization Name | Funding Type | Lead Investor Names | Investor Names | Funding Stage | Org Industries | Org Hq City | Org Hq Country | Org Description | Org Number Of Employees | Org Website | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Masimo Investments
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Masimo Acquisitions
6 results
| Acquiree Name | Acquirer Name | Acquisition Type | Acquisition Terms | Acquiree Industries | Acquiree Hq City | Acquiree Hq Country | Acquiree Description | Acquiree Number Of Employees | Acquirer Industries | Acquirer Hq Country | Acquirer Number Of Employees | Acquirer Ipo Status | Acquiree Website | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nura | — | 2023-04-20 | Masimo | Acquihire | — | Consumer ElectronicsHardwareManufacturingMusicWearables | Melbourne | Australia | nura, powered and operated by Nuraloop, is a manufacturing c… | — | — | BiotechnologyHealth CareManufacturingMedical Device | United States | 1001-5000 | Public | 6 | www.nuraphone.com/ | |
| Sound United | $1.02B | 2022-02-15 | Masimo | Acquisition | — | ManufacturingMusicMusical Instruments | Vista | United States | Sound United is an audio equipment maker that owns Polk Audi… | 2013-01-01 | 251-500 | BiotechnologyHealth CareManufacturingMedical Device | United States | 1001-5000 | Public | 6 | www.soundunited.com/ | |
| Lidco | $40.24M | 2020-11-02 | Masimo | Acquisition | Cash | Health Care | London | United Kingdom | LiDCO hemodynamic monitoring enables fluid and drug manageme… | 1991-01-01 | 51-100 | BiotechnologyHealth CareManufacturingMedical Device | United States | 1001-5000 | Public | 6 | www.lidco.com | |
| TNI medical | — | 2020-03-20 | Masimo | Acquisition | — | BiotechnologyHealth CareManufacturingMedicalMedical DevicePersonal Health | Freiburg | Germany | TNI medical develops, produces, and markets diagnostic and t… | — | — | BiotechnologyHealth CareManufacturingMedical Device | United States | 1001-5000 | Public | 6 | www.tni-medical.de | |
| Spire | $8.5M | 2012-03-12 | Masimo | Acquisition | — | BiotechnologyHealth CareRenewable EnergySolar | Bedford | United States | Spire develops and markets engineered products and services … | 1969-01-01 | 101-250 | BiotechnologyHealth CareManufacturingMedical Device | United States | 1001-5000 | Public | 6 | www.spirecorp.com |
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Masimo Key People
Director, Systems Engineering
Senior Software Engineer II
1,605
professional contacts at Masimo
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