Is Nine Fives profitable?

No. Nine Fives is a pre revenue startup as of July 2026, with CB Insights listing revenue as 0 for the fiscal year on record. The company closed a $500K convertible note on April 1, 2026, and has no disclosed customer or sales figures yet.

Nine Fives is privately held, founded in 2025 by CEO Noah Levy and COO Andrew Kurtz, both former SpaceX RF and aerospace hardware engineers. It is backed by Y Combinator (P26 batch) and Space Capital, a space focused VC fund, with a $500K convertible note closed April 1, 2026.

Could AI replace Nine Fives' product?

Not the hardware. Nine Fives sells physical calibrated RF attenuators and switches requiring manufacturing and RF engineering competency. Its marketed LLM feature, which turns rack configs into Python test scripts, is a thin wrapper any customer could replicate with Claude or GPT and SCPI or REST access.

Who is Nine Fives' biggest competitor?

Keysight Technologies is the market leader in RF test equipment, alongside Rohde & Schwarz, which reinvests 15 to 20 percent of revenue in R&D per an October 2025 EE Times report. Fast followers Mini Circuits, Vaunix, and JFW Industries already sell programmable networked attenuators and switches.

Does Nine Fives have any named customers?

No customer names, logos, or unit and revenue traction have been independently reported as of July 15, 2026. The company demonstrated shipping hardware, the POE ATTEN 6G and POE SWITCH 6G, at IMS 2026 but has not disclosed design partners or purchase orders.

YC Spring 2026 · United States

Nine Fives

ninefives.com ↗

Maker of driverless, networked RF test attenuators and switches for aerospace, drone, and phone testing.

Losing its protection

Assessed 27 July 2026 · Evidence as of 27 July 2026

The structural protection is eroding.

On the recordSince 27 July 2026 · Checkable from Q4 2026 to Q1 2027 · Every call on the record Checkpoint: NineVue rack ecosystem and power meter targeted for release

The call

Nine Fives has real hardware and RF pedigree but no disclosed customers, so its UX wedge remains open for bigger vendors to copy.

Nine Fives makes remote-controlled radio frequency switches and attenuators (hardware parts that test wireless systems) and has built software to control them over the internet instead of old-fashioned cables. The risk is that established players like Keysight and Rohde & Schwarz can copy the same remote-control idea relatively easily, and they already have deep customer relationships and huge R&D budgets. The one thing that could lock customers in is if Nine Fives becomes so central to how test engineers run their work routines that switching to someone else becomes painful, but that has not happened yet and the company has not announced any real customers to prove it.

Why

AI pressure: None apparent. AI can write test scripts from rack configs, but it cannot calibrate RF hardware or replace physical manufacturing. Could AI do the core job? Only partly.

Bigger players: Keysight, Rohde & Schwarz, and fast copiers Mini-Circuits and Vaunix. These firms already sell programmable attenuators and switches; adding PoE and REST control is not a hard technical step for them. Could a giant copy it? Yes, easily.

What protects it. Real shipped RF hardware and founder RF design credibility from SpaceX, but no named customers or proven lock-in yet.

What would change this call

Nine Fives announces a named design partner or aerospace/defense OEM customer within 18-24 months. Would show real workflow lock-in rather than just a hardware demo.
Keysight, Rohde & Schwarz, or Mini-Circuits ships a driverless REST/PoE-native instrument line. Would show incumbents closed the UX gap and collapsed Nine Fives' wedge.
Nine Fives closes a priced seed or Series A round by early 2027. Would show investor confidence and capital for hardware scale-up.

Key numbers

Shipped attenuator and switch hardware shown at IMS 2026 (2026-07-15)
Hiring founding RF engineers at $170K to $200K plus equity (2026-07-13)
18 GHz product versions planned for later in 2026 (2026-07-15)

Named risks

No named customers, design partners, or repeat orders disclosed as of July 2026. Severity: high
Architecture wedge (Web UI, PoE, REST API) is not protected and copyable by incumbents like Keysight or R&S. Severity: high
Only $500K raised to date, thin capital for hardware scaling and manufacturing. Severity: medium
Marketed AI test automation feature is a thin, easily replicated layer over frontier LLMs, not a durable moat. Severity: medium
Fast followers Mini-Circuits, Vaunix, JFW already sell comparable programmable/networked RF instruments. Severity: high

Rivals, as read in July 2026

Rival	Direction	Evidence
Keysight Technologies	losing to	Market leader across spectrum/network analyzers and power meters as of June 30, 2026 report; Nine Fives has no named customers yet
Rohde and Schwarz	losing to	Reinvests 15-20% of revenue in R&D per Oct 12, 2025 EE Times report, dwarfing Nine Fives $500K total raised
Mini-Circuits	contesting	Already ships programmable networked attenuators and switches, undercutting Nine Fives UX wedge as of July 2026
Vaunix	contesting	Sells programmable USB RF digital step attenuators up to 40 GHz, a direct fast follower to Nine Fives products
JFW Industries	contesting	Ships programmable/networked attenuators and RF switches already, per April 13, 2026 market report

Questions people ask

Is Nine Fives profitable?: No. Nine Fives is a pre revenue startup as of July 2026, with CB Insights listing revenue as 0 for the fiscal year on record. The company closed a $500K convertible note on April 1, 2026, and has no disclosed customer or sales figures yet.
Who owns Nine Fives?: Nine Fives is privately held, founded in 2025 by CEO Noah Levy and COO Andrew Kurtz, both former SpaceX RF and aerospace hardware engineers. It is backed by Y Combinator (P26 batch) and Space Capital, a space focused VC fund, with a $500K convertible note closed April 1, 2026.
Could AI replace Nine Fives' product?: Not the hardware. Nine Fives sells physical calibrated RF attenuators and switches requiring manufacturing and RF engineering competency. Its marketed LLM feature, which turns rack configs into Python test scripts, is a thin wrapper any customer could replicate with Claude or GPT and SCPI or REST access.
Who is Nine Fives' biggest competitor?: Keysight Technologies is the market leader in RF test equipment, alongside Rohde & Schwarz, which reinvests 15 to 20 percent of revenue in R&D per an October 2025 EE Times report. Fast followers Mini Circuits, Vaunix, and JFW Industries already sell programmable networked attenuators and switches.
Does Nine Fives have any named customers?: No customer names, logos, or unit and revenue traction have been independently reported as of July 15, 2026. The company demonstrated shipping hardware, the POE ATTEN 6G and POE SWITCH 6G, at IMS 2026 but has not disclosed design partners or purchase orders.

Timeline

2026-07-15Nine Fives demos POE attenuator, switch and NineVue rack chassis at IMS 2026 trade show
2026-07-13Nine Fives posts Founding RF Engineer and Founding Electrical Engineer job listings, San Mateo CA
2026-07-08Nine Fives publishes RF engineering technical blog post
2026-05-20Nine Fives publicly launches via Y Combinator Launch YC page
2026-04-01Nine Fives closes $500K convertible note, total raised to date
2025Nine Fives founded by Noah Levy and Andrew Kurtz, both ex SpaceX RF engineers

Revision history

27 July 2026

First assessed. Losing its protection. The text above is fixed as of this date and is not edited afterwards.

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