Nine Fives

Passive Components & Connectors · RF & Wireless Hardware
2open roles
3backers · Y Combinator, Anorak Ventures
10+team · employees, estimated range
9technologies in use

Overview

Nine Fives LLC is a manufacturer of next-generation RF Test Equipment. Founded in 2025 - Nine Fives specializes in ethernet-enabled variable attenuators, RF switches, and power meters.

Key facts

As of Nov 13, 2026, Alion lists 2 open roles at Nine Fives. Nine Fives is headquartered in San Francisco, United States.

Open roles
2Job postings Alion tracks, as of Nov 13, 2026
Headquarters
San Francisco, United StatesAlion company profile, updated Nov 13, 2026
Employees
10+Alion company profile, an estimated range
Technologies in its job postings
9Named in its job postings

Funding and backers

Team
11-50
employees, estimated range
Hiring now
2
open roles
Backers
3
Y Combinator, Anorak Ventures
Momentum
0/100
no fresh signals
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Apr 2026 Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 7%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Y Combinator X26 accelerator Anorak Ventures fund Space Capital fund
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Jobs

$170k – $200k per year · Equity 0.5–2% · In office · Full-Time · 3+ years exp · Bachelor's Degree · San Mateo
Python
C++
MATLAB
Rest API
Git
Linux
DNS
DHCP
Chips/EDA
KiCad
Apply
$170k – $200k per year · Equity 0.5–2% · In office · Full-Time · 3+ years exp · Bachelor's Degree · San Mateo
Python
C++
Rest API
Linux
DNS
DHCP
Chips/EDA
KiCad
Apply
All 2 jobs at Nine Fives salaries, cities, levels and how long each has been open

Salary insights

Compensation ranges based on this company's open jobs
Median
$200k
Typical range
$200k
Open positions
2
2 Jobs
Middle 100%
Level Jobs Median Typical range
Middle 2 $200k $200k
Highest paying role Founding Electrical Engineer $200k
Normalized to USD per year

Growth

Hiring Momentum
28/100
Slowing
Open positions
2
0 opened / 0 closed in 30 days
ATS activity
Every ~6 hours
Today
Hiring Dynamics 0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Hardware
100% ▼

Tech stack

Technologies named in job postings at Nine Fives over the last 12 months, by layer, with the share of postings for each.
Technologies in use
9
Postings analysed
2
Stack modernity
73/100
Languages
Python
C++
MATLAB
Cloud & platforms
Linux
Developer tools
KiCad
Rest API
Git
Practices & domains
DHCP
DNS
Sign in to see how your skills match this stack Sign In

Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors3
Anorak VenturesVia a fund
24 portfolio companies: CivilGrid, Cognitive3D, Birdstop and 21 more
Space CapitalVia a fund
64 portfolio companies: Zephr, York Space Systems, Fortastra and 61 more
Y CombinatorVia a fund
6310 portfolio companies
Report a mistake

Offices

Where the company hires and what each office is for
Cities
2
Hiring now
1
Countries
1
Busiest office
San Mateo
Loading the map
Headquarters Builds here Office with open vacancies No open vacancies right now Tap a pin for the office
San Francisco United States
HQ
San Mateo United States
2 open roles 2 posted in 90 days 100% engineering 10-50 est. staff $200k Avg Salary
hires for Hardware
seen since Sep 2026

How to cite this page

Alion, "Nine Fives: key facts", as of Nov 13, 2026. https://alion.io/company/nine-fives

These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0