Responsive / Closed-Loop Neural Devices

Old-school neurostimulators send the same electricity 24 hours a day — like running the AC at full blast all day whether the room is hot or cold. A new generation of devices called "responsive" or "closed-loop" flips that logic entirely: they listen to the brain's signals all the time, detect when a symptom is about to flare, and fire a pulse to head it off only when needed. The result is less wasted power, fewer side effects, and far more precise targeting. This is the frontier of neurostimulation — and a bridge that's slowly connecting today's world of treatment with tomorrow's world of brain-reading BCI.

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Responsive / Closed-Loop Neural Devices

Onward Medical H1 2026 Revenue Surges 250% as ARC-EX Sales Top 159 Systems

Onward Medical reported H1 2026 revenue of EUR4.2 million, up 250% year-over-year, with EUR3.4 million coming from product revenues and gross profit of EUR2.9 million at roughly 70% gross margin. The company sold or supplied 159 ARC-EX systems via paid evaluation in H1 2026, more than a 5x increase year-over-year, including 89 units sold in Q2 2026 alone, with the device now available in over 150 clinics worldwide, including over 130 in the US, covering an estimated 35-40% of US facilities managing spinal cord injury. Operating expenses rose to EUR26.3 million from EUR21 million in H1 2025, producing an operating loss of EUR23.3 million and a net loss of EUR24.7 million, while cash burn reached EUR26 million. The company ended June 2026 with EUR81.5 million in cash, up from EUR68.1 million at the start of the year, after raising over EUR40 million in new equity capital including EUR25 million from EQT Life Sciences, and secured a debt facility of up to EUR50 million from BlackRock replacing its existing loan, with EUR20 million drawn at closing, extending its cash runway into Q1 2028. On the clinical side, the EMPOWER-BP pivotal trial has enrolled 22 participants across 14 active sites, with interim analysis expected by end of Q1 or early Q2 2027, and the company completed its CMS coding submission with a decision expected in Q4 2026.
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Brain-Computer Interface › Deep Brain & Spinal Cord Stimulation (incumbents) Competition
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Onward Medical N.V. · Capital · Positive Revenue surged 250% to EUR4.2M with ~70% gross margin, and the company raised over EUR40M equity plus a EUR50M BlackRock debt facility, extending runway into Q1 2028.
Onward Medical N.V. · Demand · Positive ARC-EX systems sold/supplied 159 units in H1 2026, more than 5x YoY, with 89 in Q2 alone and availability in over 150 clinics.
EQT Life Sciences · Capital · Positive EQT Life Sciences invested EUR25M of the over EUR40M new equity capital raised by Onward Medical.
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NeuroPace Beats Q2 Estimates, Raises 2026 Revenue Guidance to $99.5-$101.5 Million

NeuroPace reported a second-quarter 2026 loss per share of 18 cents, beating the Zacks Consensus Estimate by 5.3% and improving from a loss of 30 cents a year earlier. Revenue rose 17.1% year over year to $22.8 million, led by the RNS System, whose revenues totaled $22.5 million, up 21.3%, while service revenues fell to $302,000 from $937,000 a year ago following the DIXI Medical wind-down. Adjusted gross margin contracted 60 basis points to 83.4%, and the adjusted operating loss narrowed to $2.8 million from $5 million. Management raised full-year 2026 revenue guidance to $99.5-$101.5 million from $99-$101 million, reflecting expected service revenues of about $1 million, up from roughly $500,000 previously, while the RNS revenue growth outlook remains 21%-23%. The company also lifted its adjusted gross margin outlook to 82%-83% and narrowed its expected adjusted EBITDA loss to $7.5 million-$8.5 million, though consensus estimates have trended downward over the past month.
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Brain-Computer Interface › Responsive / Closed-Loop Neural Devices ▲Demand
NPCE · Capital · Positive Q2 loss beat estimates, revenue rose 17.1% to $22.8M, and 2026 revenue guidance was raised to $99.5-$101.5M
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