Newsletter Sponsor Rankings

Top Space Newsletters

The 50 most sponsor-active Space newsletters, ranked by our Newsletter Leader Score.

📊 50 ranked newsletters 🔄 Updated October 2, 2026 🤖 Compiled by Sponsor Scout
1
Leader Score 95

A weekday newsletter covering the business, policy, investment, technology, and commercialization of space. It targets executives, founders, investors, engineers, policymakers, and other professional space-industry readers.

weeklyspace-industry executives, founders, investors, engineers, and policymakersspacespace businessspace policy
🤝 20 known sponsors👥 ~19,000 subscribers
👤 Written by Mo Islam · Co-founder & Publisher✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
2
Leader Score 95

Weekly space-intelligence newsletter focused on the intersection of space systems, cybersecurity, critical infrastructure, policy, and commercial space technology.

weeklycybersecurity professionals, space operators, defense leaders, and technology executivesspacecybersecuritysatellites
🤝 13 known sponsors👥 ~13,000 subscribers
👤 Written by Maria Varmazis · Host and Newsletter Lead✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
3
Leader Score 92

Independent global lunar-exploration newsletter focused on Moon missions, lunar science, and commercial lunar activity. It openly sells sponsorships and documents sponsor policies.

weeklyspace enthusiasts, lunar scientists, space-industry readersspacemoonlunar exploration
🤝 13 known sponsors👥 ~10,000 subscribers
👤 Written by Jatan Mehta · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
4
Leader Score 73

Independent newsletter focused on the European space industry, launch, policy, and startups. Sponsorship is explicitly offered and at least one long-term sponsor is publicly documented.

weeklyEuropean space professionals, founders, and policy watchersspaceeuropelaunch
🤝 2 known sponsors👥 ~806 subscribers
👤 Written by Andrew Parsonson · Founder & Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
5
Leader Score 70

Daily space-industry newsletter covering space policy, defense, geopolitics, commercial space, Earth observation, and exploration for a global professional audience.

weeklyglobal space professionals, policymakers, defense leaders, and industry executivesspacepolicydefense
🤝 1 known sponsor👥 ~361,038 subscribers
👤 Written by Torsten Kriening · CEO & Publisher✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
6
Leader Score 70

A Friday roundup of major space-industry news, analysis, business developments, policy, launch activity, and satellite-sector trends. It is aimed at commercial, civil, defense, government, and investment decision-makers.

weeklyspace-industry executives, government officials, policymakers, and investorsspacechinaspace policy
🤝 1 known sponsor👥 ~80,000 subscribers
👤 Written by Dan Robitzski · News Editor✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
7
Leader Score 65

A weekly newsletter covering planetary science, robotic exploration, astrobiology, space policy, advocacy, and notable discoveries for space enthusiasts and supporters.

weeklyspace enthusiasts, planetary-science supporters, educators, advocates, and nonprofit membersspace defensespace policycommercial space
👥 ~100,000 subscribers
👤 Written by Laura Winter · Author and Host✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
8
Leader Score 64

Independent space and deep-tech newsletter covering space startups, markets, and long-horizon industry trends. It appears to attract sponsorship value through a large stated subscriber base and investor-oriented coverage.

weeklyspace investors, founders, and deep-tech operatorsspacespace-techstartups
👥 ~85,378 subscribers
👤 Written by Alexandra Vidyuk · Writer / Contributor✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
9
Leader Score 61

Weekly intelligence newsletter analyzing space-economy investment opportunities, orbital infrastructure, launch, satellite markets, lunar logistics, and space-based data centers.

weeklyself-directed investors, finance professionals, founders, and space-economy analystsspacespace economyinvesting
👥 ~2,500 subscribers
👤 Written by Vlad Algin · Founder & Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
10

A high-volume satellite and space-industry news email covering launch, connectivity, Earth observation, finance, manufacturing, technology, and government programs. Its audience is primarily global satellite executives, operators, suppliers…

monthlysatellite and space-industry professionalsspacecybersecuritydefense
👥 ~96,100 subscribers
👤 Written by Mark Holmes · Senior Editorial Director✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
11

Weekly newsletter covering space news and analysis with a focus on the UK and European space industry, including editor opinion, interviews, business announcements, and mission updates.

weeklyspace industry professionals, founders, investors, and enthusiastsspacespace industrylaunch
👤 Written by James Hydzik · Technology and business writer and editor✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
12

A high-frequency astronomy and space newsletter blending accessible science explanation with commentary on current discoveries, missions, and skywatching. It serves general space enthusiasts and science readers.

weeklyspace and astronomy enthusiastsspaceastronomyscience
👤 Written by Philip Plait · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
13
Leader Score 56

A concise weekly briefing on space launches, deals, discoveries, companies, markets, and the people shaping the modern space race. It is aimed at space-curious professionals, investors, operators, and general readers who want a fast global …

weeklyspace-curious professionals, investors, operators, and enthusiastsspacespace industrylaunches
👤 Written by Sean Callaghan · Founder & Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
14
Leader Score 56

A niche newsletter at the intersection of the space industry, hard tech, and commercial real estate. It is read by executives, founders, entrepreneurs, and investors tracking physical-space footprints in hard tech.

monthlyhard-tech and space executives, entrepreneurs, and investorsspacehard techcommercial real estate
👥 ~3,200 subscribers
👤 Written by Erik Stiebel · Creator✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
15
Leader Score 56

A weekly newsletter and companion podcast covering space technology, satellite communications, launch, orbital infrastructure, investment, and the commercial space economy. It is written for space professionals, founders, investors, and tec…

weeklyspace professionals, founders, investors, and aerospace engineersspace technologysatelliteslaunch
👤 Written by Harrison Lambert · Co-founder & Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
16
Leader Score 55

New Substack from researchers at the Mercatus Center focused on space policy, competition, innovation, and governance. It is active and recent, but explicit sponsorship evidence is not yet visible.

weeklyspace policy readers, researchers, and economically minded industry followersspacespace policyeconomics
👤 Written by Rebecca Lowe · Space Team co-founder / writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
17
Leader Score 55

Weekly LinkedIn newsletter on the business and physics of space, presented as a newsletter of Epic Orbits. Recent editions were published in June 2026.

weeklyspace-business readers and technically curious professionalsspacespace businessphysics
👤 Written by Marcus Beaufort · Creator✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
18
Leader Score 55

Paid space-industry news and analysis publication focused on satellite, launch, broadband and commercial space business. Its audience appears to be industry executives, investors, government officials and other professionals.

weeklyspace industry executives, professionals, investors, and government officialsspacesatellitelaunch
👤 Written by Peter B. de Selding · Co-Founder & Chief Editor✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
19

A weekly space-industry intelligence briefing covering launches, funding, market movements, regulation, technology, companies, and hiring. It targets space professionals, investors, founders, engineers, and policy analysts.

weeklyspace professionals, investors, founders, engineers, and policy analystsspacemarket intelligencelaunch
👥 ~2,000 subscribers
👤 Written by Jay Griffiths · Founder✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
20
Leader Score 54

Independent newsletter analyzing publicly traded space companies and broader space-industry trends. The LinkedIn company page identifies Case Taylor as the writer behind it.

biweeklyspace investors and industry analystsspacepublic marketsinvesting
👤 Written by Case Taylor · Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
21
Leader Score 53

AIAA's flagship weekday aerospace newsletter delivers curated industry news and analysis to a professional audience across government, industry, and academia. It is actively marketed for newsletter advertising.

weeklyaerospace and space professionals, engineers, policymakers, and executivesspaceaerospacedefense
👥 ~93,000 subscribers
👤 Written by Marjorie Censer · Editor-in-Chief✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
22
Leader Score 53

A long-running weekly publication and email newsletter featuring in-depth essays, commentary, reviews, and analysis on space policy, commercialization, technology, science, history, and exploration. Its readership includes government agenci…

weeklyspace professionals, policymakers, researchers, executives, and enthusiastsspace policyspace businesscommercial space
👥 ~8,000 subscribers
👤 Written by Jeff Foust · Editor & Publisher✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
23
Leader Score 53

Weekly newsletter accompanying The Space Show, covering space exploration, commercial spaceflight, astronomy, space technology, policy, and interviews with space-sector experts.

weeklyspace enthusiasts, researchers, educators, and aerospace professionalsspace explorationcommercial spaceflightastronomy
👤 Written by David M. Livingston · Founder, Host, and Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
24
Leader Score 52

Independent analysis outlet and subscriber publication focused on spaceflight, exploration, policy, and strategy. It is currently reader-supported rather than advertiser-supported.

weeklyserious space enthusiasts and industry followersspacespaceflightpolicy
👤 Written by Anthony Colangelo · Founder, Writer, Host✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
25
Leader Score 50

Monthly aerospace and defense newsletter with meaningful space-defense overlap, tracking startup funding, solicitations, contracting and frontier-tech trends. It appears aimed at founders, operators, investors and BD professionals in A&D.

monthlyaerospace & defense founders, operators, investors, and business development teamsspacedefenseaerospace
👤 Written by Bryce Dabbs · Founder✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
26
Leader Score 50

Italian-language weekly newsletter covering space technology, the space economy, human spaceflight, launches, orbital activity, and lunar exploration.

weeklyItalian-speaking space enthusiasts, students, professionals, and industry followersspace economylaunchspace technology
🤝 1 known sponsor👥 ~2,500 subscribers
👤 Written by Stefano Piccin · Writer and Newsletter Manager✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
27
Leader Score 47

Weekly newsletter covering developments across Denmark’s space ecosystem, including industry, startups, research, and public-sector activity.

weeklyspace-sector professionals and followers of the Danish space ecosystemspacespace industryregional space ecosystem
👤 Written by Thomas Schumann · Editor-in-Chief✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
28

Weekly roundup newsletter from The Space List covering global space-industry additions, companies, products, services, and funding news. Its sponsor page explicitly pitches placements to space-industry advertisers.

weeklyspace industry professionals, investors, and entrepreneursspacespace industrystartups
👥 ~1,200 subscribers
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
29

Trailblazers is a Thursday space-economy newsletter focused on business, investing, and the modern space industry. Its public sponsorship storefront shows substantial advertiser activity and packaged newsletter inventory.

weeklyleadership, entrepreneurs, investors, business decision makers, engineersspacespace economyinvesting
👥 ~7,400 subscribers
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
30

SatNow runs a weekly Satellite & Space industry newsletter tied to its marketplace and news site. Its 2026 media kit sells one sponsor per issue and positions the product for engineers, R&D, and executive audiences.

weeklyengineers, engineering management, R&D, executives, studentsspacesatellitelaunch
👥 ~5,000 subscribers
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
31

Newsletter analyzing space, defense, aerospace, and adjacent strategic industries with a focus on market intelligence and geopolitical implications.

monthlyexecutives, investors, policymakers, and industry decision-makersspacedefenseaerospace
👤 Written by Omkar Nikam · Founder✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
32
Leader Score 39

Independent space-industry Substack with recurring issues and visible sponsor slots inside editions. It appears to target readers following commercial space, policy, and industry gossip/analysis.

weeklycommercial space insiders, operators, and policy/interested readersspacecommercial spacepolicy
🤝 1 known sponsor
👤 Written by Dome2Dome · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
33

Weekly astronomy newsletter rounding up current astronomy news, observing stories, and celestial events. The brand has an active advertising program and long-standing reach among astronomy enthusiasts.

weeklyastronomy enthusiasts, amateur astronomers, and science readersspaceastronomyobserving
👤 Written by Monica Young · News Editor✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
34
Leader Score 37

Independent publication/newsletter in the space sector with a live advertising page for sponsor slots and media-kit details. A named current newsletter owner/editor was not verifiable from accessible sources.

weeklyspace professionals and enthusiastsspacespace newsaerospace
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
35
Leader Score 35

Weekly Substack briefing curating the week’s most-read coverage across space industry, science, and adjacent frontier themes. The publication says it is funded by display advertising and reader support, not sponsors.

weeklyspace enthusiasts and general science readersspacespace industryscience
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
36
Leader Score 35

An independent space-news digest covering commercial space, science, defense, governance, and research. It packages dense weekly roundups for readers tracking the broader space ecosystem.

weeklyspace professionals, analysts, and highly engaged enthusiastsspacecommercial spacescience
👤 Written by Maharshi Bhattacharya · Curator / Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
37
Leader Score 35

A frequent space-news newsletter publishing explainers, briefings, and interviews under the SpaceInfo Club brand. It appears aimed at general readers seeking regular accessible space content.

weeklygeneral space enthusiasts and learnersspacespace newsspace science
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
38
Leader Score 35

Science News offers a dedicated Space News email newsletter for readers interested in space and astronomy. Its 2026 media kit sells both sponsored messages and banner ads into the newsletter.

biweeklyspace and astronomy enthusiasts, science-interested readers, educatorsspaceastronomyscience news
👥 ~48,000 subscribers
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
39
Leader Score 35

A consumer-facing space newsletter focused on astronomy news, telescope imagery, eclipses, exoplanets, and major celestial events.

weeklyspace enthusiasts and general science readersspaceastronomytelescopes
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
40
Leader Score 35

Independent aerospace newsletter focused on the commercial space economy, orbital infrastructure, transportation systems, and execution risk.

weeklyspace industry operators, investors, and commercial-space readersspaceaerospacecommercial space
👤 Written by Chris Sumpter · Founder & Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
41
Leader Score 32

Substack publication explaining how the commercial space economy works, with accessible breakdowns of launch, satellites, exploration, and data-economy trends. It published a space-industry piece in June 2026 and links to a sequence of rece…

monthlygeneral business readers, investors, and newcomers to spacespacespace economysatellites
👤 Written by Matej Pretković · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
42
Leader Score 32

Independent astronomy newsletter explaining the science of the cosmos and how astronomy works behind the scenes. It appears to publish regularly and is run by a single named author, but only first-name attribution was visible.

weeklyastronomy enthusiasts and science-curious readersspaceastronomyscience
👤 Written by Alessandro · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
43
Leader Score 30

A geopolitical and strategic-intelligence newsletter about space power, orbital economics, and national security space. Produced by AstroAnalytica for policy, defence, and investor audiences.

monthlygovernment, defence, investors, and space-policy professionalsspacegeopoliticsdefence
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
44
Leader Score 30

Community-oriented Substack covering diversity, community and culture in space through interviews and essays. It is space-focused, but owner attribution was not clearly identifiable from accessible pages.

monthlyspace community members, advocates, and readers interested in inclusion in spacespacecommunitydiversity
✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
45
Leader Score 26

Kickstart Global is a broader founder-focused Substack that has published substantive space-economy analysis, including a June 2026 essay on orbital infrastructure and sovereign-government customers. It is space-relevant but less purely spa…

quarterlystartup founders, operators, and space-economy observersspacefoundersspace economy
👤 Written by Peter Ashiagbor · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
46
Leader Score 23

Independent monthly Substack newsletter on space leadership, business, and policy, informed by graduate study at Arizona State University’s Thunderbird School.

monthlystudents, early-career professionals, and readers interested in space business and policyspacespace businessspace policy
👤 Written by Carolina Castro · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
47
Leader Score 23

Space-focused Substack publishing strategic and technical analyses on commercial and defense-relevant space technologies. A February 2026 issue examined quantum clocks for lunar navigation, mining, and defense resilience.

monthlyspace strategists, defense readers, and technology investorsspacestrategydefense
👤 Written by Mandeep Metharu · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
48
Leader Score 23

Personal Substack by Adithya Kothandhapani covering U.S. space strategy and infrastructure politics. The March 2026 issue focused on Mars relay networks, Artemis, and lunar infrastructure debates.

monthlyspace policy readers and national-security-minded industry observersspacepolicystrategy
👤 Written by Adithya Kothandhapani · Author✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
49
Leader Score 20

ROOM is an ongoing space publication covering science, engineering, policy, sustainability, and business across the global space sector. Recent issues and editorial posts show it remains active, though explicit newsletter sponsorship eviden…

quarterlyspace professionals, researchers, policymakers, and industry observersspacepolicyscience
👤 Written by Clive Simpson · Editor-in-Chief✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?
50
Leader Score 15

beehiiv newsletter about the Canadian space industry, written independently with a clear invitation for Canadian space companies to advertise.

one-offreaders and companies interested in the Canadian space sectorspacespace industrycanadian space
👤 Written by Rory McGreal · Founder & Writer✋ Verify you're the owner — free: badge, sponsor pitch page & sponsor leads· Not you? Who writes it?

50 companies sponsor Space newsletters

These are real sponsors backing the communities on this list — discovered by Sponsor Scout's daily AI agent. Sign up free to see who's actively sponsoring right now, find the decision-makers, and reach out.

Spaced VenturesAltek Space21SoftWareKepler CommunicationsSpiderOak Mission SystemsBooz AllenBlackSkyAmazon LeoLockheed MartinViasatEpsilon 3OrrickBank of AmericaSceyeDeloitteVASTAmazon Web ServicesLoft Orbital+32 more
Find your sponsors free →

Want your newsletter to be listed?

Property owners can submit evidence for Sponsor Scout review. Acceptance into Sponsor Scout does not guarantee placement in the public Top 25; rankings remain evidence-based and editorially independent.

Sign up to submit → Already have an account? Sign in

How we rank — the Newsletter Leader Score

Every newsletter is scored 0–100 by Sponsor Scout as we search the open web daily. The score rewards newsletters that reach real audiences and consistently attract sponsors. These findings are updated regularly.

Sponsor activityHighest weight
How many distinct companies actively sponsor the newsletter — the strongest signal of a live, fundable audience.
Publishing cadenceHigh weight
How regularly issues ship. Daily & weekly cadences earn more than sporadic sends.
AudienceMedium weight
Estimated subscriber reach and the quality of the readership (founders, operators, investors).
RecencyLower weight
How recently they last published — active beats dormant.
ReachLower weight
Web, social, and community footprint that amplifies a sponsor's spend.
Verified ownerBonus
A confirmed newsletter owner who has verified their listing with a one-click email check — verified newsletters rank higher and earn a badge.

Find sponsors actively backing events in your city.

Sponsor Scout hunts the web every day for companies sponsoring startup & tech events, finds the right decision-maker, and drafts the outreach for you. Start free — 20 sponsors and 4 scout runs every month, no credit card.

Get the Sponsor Scout Daily — free

One short email each weekday: a real story about a real company sponsoring the startup ecosystem, plus the day's freshest finds.

✓ Free forever✓ One email per weekday✓ Unsubscribe in 1 click