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LaunchLedger | Software for Clustered Electric Propulsion Systems — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Space And Astronomy →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
avrtec.space ↗	67 match 2 shared topics	AVRTEC AB — Compact Space Electronics for PocketQube and Small-Satellite Systems	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
helixastro.com ↗	62 match 2 shared topics	Helix Astro LLC — Space Domain Awareness, Reimagined	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
apeirion.space ↗	62 match 2 shared topics	APEIRION — Innovating the Future of Space Exploration	en	space-and-astronomy	robotsllmsaihumans	emailphone	partial · 8
spaceappschallenge.org ↗	61 match 2 shared topics	NASA Space Apps Challenge	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spaceappspr.com ↗	61 match 2 shared topics	NASA Space Apps Challenge	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
leeholmes.com ↗	61 match 2 shared topics	Lee Holmes \| Precision Computing	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
sybillatechnologies.eu ↗	61 match 2 shared topics	Sybilla Technologies – We let you see	European Union en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
3rdplanetorbital.com ↗	61 match 2 shared topics	Reliable and Trustworthy Building Blocks 🌍 Third Planet Orbital	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spaceoneers.io ↗	60 match 2 shared topics	Spaceoneers.io – Enabling a new generation of space pioneers	en	space-and-astronomy WooCommerce	robotsllmsaihumans	emailphone	none
bac.page ↗	60 match 2 shared topics	bac.page – redirecting…	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
aaryan.space ↗	60 match 2 shared topics	Aaryan Anand – Aaryan's Portfolio	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	partial · 8
abbr.space ↗	60 match 2 shared topics	Space Acronyms, Abbreviations, & Terms	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spaceappsseattle.org ↗	60 match 2 shared topics	Space Apps Seattle – A global NASA hackathon in the city that unites tech and space: Seattle, WA	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
avio.com ↗	37 match 1 shared topics	Avio – Advanced Space Propulsion & Aerospace Solutions	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
azista.space ↗	36 match 1 shared topics	Azista Space \| Satellite Buses, Subsystems and Electro-optical Payloads.	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
leeinorbit.com ↗	36 match 1 shared topics	Satellite Propulsion \| The Lee Co.	en	space-and-astronomy	robotsllmsaihumans	emailphone	none
spacepropulsion.org ↗	36 match 1 shared topics	Space Propulsion Synergy Team	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none
space-precision-system.com ↗	36 match 1 shared topics	Space Precision Systems	en	space-and-astronomy WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.