Company
Mainstay Medical
Introducing ReActiv8® – The first & only restorative neurostimulation therapy to treat mechanical chronic low back pain.
Also known as Mainstay, Mainstay Medical International plc
- Status
- Operatingas of 2026-09-18
- Business model
- B2B
- Headquarters
- Swords, Co. Dublin, Ireland
- Customers
- Physicians
- Legal name
- Mainstay Medical International plc
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Record updated 18 September 2026
About
ReActiv8 is a new restorative therapy that stimulates the nerves of the muscle directly responsible for stabilizing your lumbar spine. The therapy can interrupt your low back's cycle of pain, degeneration, and loss of function.
Funding snapshot
- Total raised
- $125MSum of rounds, as of 2026-09-18Source (opens in a new tab)
- Latest round
- Undisclosed, $125M2024-02-26
Funding rounds
- Round, 2024
- $125M2024-02-27, Announced
- Round, 2024
- $125M2024-02-26, Company stated
- Round, 2021
- $108M2021-02-16, Announced
Products
- Hardware
- ReActiv8
- Web
- ReActiv8
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