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Companies using SpaceWire

497 companies use SpaceWire, based on their job posts and their employees' public profiles. Hiring for it is steady, with 818 job posts naming it from October 2025 to August 2026. Hardware Engineer roles mention it most.

Data as of November 9, 2026 · Markdown version

Which companies name SpaceWire in the most job posts?

MDA Space, Blue Origin and Northrop Grumman mention SpaceWire in the most job posts. All five companies are in Manufacturing.
Company Posts People Recent job post
MDA Space Manufacturing · first seen Oct 2022 194 5 "Lead detailed design of on‑board processors, data‑buses (SpaceWire, MIL‑1553, CAN, Ethernet), memory subsystems, and I/O interfaces."satellite command & data‑handling (c&dh) system engineer, Nov 7, 2026
Blue Origin Manufacturing · first seen Sep 2022 119 0 "Experience integrating communication systems into larger systems, including definition of management and data interfaces using protocols like RS-422, Ethernet, SpaceWire, HDLC, etc."Senior Communications Systems Engineer - Lunar Permanence, Nov 4, 2026
Northrop Grumman Manufacturing · first seen Jul 2022 118 5 "Develop embedded software modules and have familiarity with data protocols including UART, Synchronous Serial, MIL-STD-1553, SPACEWIRE, SPI, discrete digital and analog IO, and others"Embedded Software Engineer – Level 2, Oct 22, 2026
Thales Manufacturing · first seen Jul 2023 105 2 "Vous avez des connaissances FPGA, environnement SoC, bus industriels (1553, Spacewire, I2C, SPI…) ?"engineer in charge of altimetry test benches (h/f), Oct 27, 2026
L3Harris Technologies Manufacturing · first seen Jul 2022 55 4 "Control protocols such I2C, SPI, RS-232/422, and SpaceWire"Lead, Sr FPGA Firmware Design Engineer, Feb 28, 2025
Showing 1 to 5 of 384 companies with job posts Sign up to see all companies using SpaceWire ›

What else do we know about SpaceWire?

Is hiring for SpaceWire growing?

SpaceWire's share of job posts is about the same as three months earlier: 0.52 in every 10,000 job posts from June to August 2026, against 0.49 from March to May. Its busiest month was May 2026, at 0.63.
Share of job posts naming SpaceWire by month, October 2025 to August 2026, in job posts in every 10,000 Moves from 0.34 in October 2025 to 0.50 in August 2026, in job posts in every 10,000. 0.73 0.54 0.36 0.18 0 0.50 Oct '25 Nov Dec Jan '26 Feb Mar Apr May Jun Jul Aug
Show the data
MonthJob posts naming SpaceWireAll job postsPer 10,000
Oct 2025481,413,6730.34
Nov 2025571,822,1190.31
Dec 2025421,236,1030.34
Jan 2026541,828,0020.30
Feb 2026681,856,6470.37
Mar 2026731,850,7110.39
Apr 2026741,728,8860.43
May 20261151,821,5090.63
Jun 2026931,909,4960.49
Jul 20261031,815,1800.57
Aug 2026911,835,6980.50

How many companies named SpaceWire in a job post for the first time in recent months?

30 companies named SpaceWire in a job post for the first time from June to August 2026, against 27 from March to May. From October 2025 to August 2026, 97 companies named it in a job post for the first time.
March to May 2026 27
June to August 2026 30
October 2025 to August 2026 97

Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.

How do we know which companies use SpaceWire?

384 companies name SpaceWire in job posts they wrote, and employees' profiles add 113 more. 40 show up in both job posts and employees' profiles.
How we know Companies Share
Job posts name SpaceWire
384 77%
Employees' profiles list SpaceWire
113 23%

497 companies. Each is counted once, under the strongest evidence we have for it.

What size are the companies that use SpaceWire?

43% of SpaceWire users are companies with 50 to 999 employees, the largest size group. 92 of its companies have more than 5,000 employees.

Share of its companies Typical tech page

ShareTypical
Under 50 employees
25% 22%
50 to 999
43% 38%
1,000 to 5,000
13% 17%
Over 5,000
19% 23%

Where are SpaceWire companies based?

SpaceWire has an unusually large following in Italy: 6.9% of its companies, against 1.5% on the typical tech page. France is second, at 14%.
ShareTypical
United States
44% 43%
France
14% 4.6%
Italy
6.9% 1.5%
Germany
5.5% 4.4%
Spain
5.1% 1.8%
United Kingdom
4.6% 6.4%

Companies in 32 countries and territories. Shares are of companies with a known headquarters country.

Show the data
CountryCompaniesShareTypical tech page
United States20944%43%
France6514%4.6%
Italy336.9%1.5%
Germany265.5%4.4%
Spain245.1%1.8%
United Kingdom224.6%6.4%

Which teams work with SpaceWire?

Flight software teams are the most common home for SpaceWire, at 11 companies, followed by avionics and ait.
Team Companies
Flight software
11
Avionics
8
Ait
7
Software
6
Egse
3
Electronics
3

What else do SpaceWire companies use?

SpaceWire companies are 811 times as likely as similar companies to use RTEMS: 29% of them, against 0.04%. Microsemi is 652 times as common as usual, at 17%.

Share of the 240 SpaceWire companies counted here whose job posts also name the tool Typical for companies the same size

Tool Also name it Typical Times as common
RTEMS 70 companies
29% 0.04% 811x
Microsemi 40 companies
17% 0.03% 652x
Libero 31 companies
13% 0.03% 383x
Intel/Altera 19 companies
7.9% 0.02% 342x
Tool Also name it Typical Times as common
RS422 113 companies
47% 0.14% 326x
Synplify 12 companies
5% 0.02% 316x
Microblaze 18 companies
7.5% 0.03% 282x
FEMAP 87 companies
36% 0.13% 280x

Which companies started naming SpaceWire in job posts recently?

26 companies with 50 or more employees picked up SpaceWire in their job posts from April to August 2026. SII Group Romania leads the new commercial companies, with 9 job posts from April to August.
Commercial 50 to 999 employees · 19 new
Company Posts
SII Group Romania 9
True Anomaly 5
TurinTech SpA 3
Katalyst Space 3
OHB Digital Connect GmbH 2
Mid-market 1,000 to 5,000 employees · 4 new
Company Posts
Vantor 2
Firefly Aerospace 2
Astek Inc 1
ICEYE 1
Enterprise over 5,000 employees · 3 new
Company Posts
University of Colorado Boulder 1
AFRY 1
Astra 1

Companies that named SpaceWire in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.

Which roles mention SpaceWire most?

Electrical Engineer job posts naming SpaceWire grew the fastest among its top roles: 38 from June to August 2026, up from 16 from March to May. Embedded Engineer is second, at 11%.
Role Share Posts
Hardware Engineer
12% 96
Embedded Engineer
11% 92
Aerospace Engineer
10% 84
Software Development Engineer in Test
8.9% 73
Electrical Engineer
8.7% 71
Software Engineer
7.2% 59
Show the data
RoleShareOct 2025 to Aug 2026Mar to May 2026Jun to Aug 2026
Hardware Engineer12%963135
Embedded Engineer11%922626
Aerospace Engineer10%842331
Software Development Engineer in Test8.9%732419
Electrical Engineer8.7%711638
Software Engineer7.2%592018
About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.