Space Studies Institute

Name

Space Studies Institute

Legal name

Space Studies Institute

Website

https://ssi.org

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

1–10 employees

Short description

Space Studies Institute is a 501(c)(3) nonprofit research organization, founded in 1977 by Gerard K. O'Neill, that funds and disseminates research on space settlement technologies including mass drivers, solar power satellites, and exotic propulsion, serving space enthusiasts and industry researchers through memberships, conferences, and an archival library.

Ownership category

akta.pro rank

Product category

Space Research / Nonprofit Research Institute

NAICS

Scientific Research and Development Services (5417), Guided Missile and Space Vehicle Manufacturing (336414)

SIC

Services-Commercial Physical & Biological Research (8731), Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Spacecraft & Satellites (Civil/Commercial) (IMABACAB)

Keywords

• Space settlement research
• Nonprofit research institute
• Space manufacturing conferences
• Advanced propulsion research
• Solar power satellites

Headquarters

HQ city

Mojave

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Others, Technology or R&D

Revenue model

1. Individual Donations and Membership Fees: SSI is funded entirely by individual donations. The organization offers tiered membership: Senior Associate ($100/year for 5 years), Supporting Member ($50/year), and Student Member ($25/year). No corporate or government funding.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Space Studies Institute is a 501(c)(3) nonprofit research organization that funds and conducts research on technologies needed for human space settlement, including the G-Lab on-orbit gravity laboratory, Solar Power Satellites, the Exotic Propulsion Initiative (Mach Effect Gravity Assist), and Mass Driver electromagnetic launchers. The institute also hosts the longest-running conference series on space manufacturing and settlement and maintains a public research library of historical conference proceedings and technical reports.

Product overview

The Space Studies Institute is a non-profit research organization focused on advancing human space settlement technology. Rather than offering commercial products, SSI operates several interconnected research programs: the G-Lab (On-Orbit Gravity Laboratory) for microgravity research, the Solar Power Satellites program for space-based energy, the Exotic Propulsion Initiative exploring breakthrough propulsion technologies, and Mass Driver technology for lunar resource extraction. SSI complements its research programs with extensive knowledge resources including a Research Library of digitized historical documents and Conference Archives spanning over 50 years of space settlement research. The organization is funded entirely by individual donations and operates as an all-volunteer effort.

Differentiator

Problem solved

Functional benefit

Products and services

• SSI G-Lab (On-Orbit Gravity Laboratory) A proposed free-flying orbital gravity laboratory located near the International Space Station, designed for human tending of research animals and gravity research to understand physiological effects of variable gravity for space habitats and human space settlement.
• Solar Power Satellites (SPS) Program

Quantifiable outcome

• Published 15 major conferences on space manufacturing and settlement since 1974
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Woodward-Fearn Lab (CalState Fullerton)coreStrategic or Co-development PartnerSSI has supported the Woodward-Fearn Lab at CalState Fullerton's Physics Department for exotic propulsion research, including funding interns and equipment. This collaboration led to NASA NIAC grants for Mach Effect Gravity Assist (MEGA) propulsion research.
• NASA Ames Research CentercoreStrategic or Co-development PartnerNASA Ames served as venue for the 14th SSI Space Manufacturing and Space Settlement Conference in 2010, marking a return to the site of early space settlement studies.
• International Space University FoundersminorStrategic or Co-development PartnerSSI assisted in the creation of the International Space University; SSI co-founder Gerard O'Neill served on the ISU board for many years; Peter Diamandis, SSI Senior Associate, was a co-founder of ISU
• Embry-Riddle Aeronautical UniversityminorStrategic or Co-development PartnerEmbry-Riddle Commercial Space Operations students visited SSI, with Professor Justin Karl incorporating The High Frontier as required reading for CSO101 classes

Scale indicators2 records

Recent moves8 records

Expansion highlights3 records

Direct peers

• The Planetary Society: The largest nonprofit space advocacy organization in the US, founded in 1980. Like SSI, it relies on individual memberships and donations to fund space science and exploration programs (e.g., LightSail), making it the closest direct peer in mission, funding model, and grassroots community.
• The Mars Society: A volunteer-driven space advocacy nonprofit dedicated to human Mars exploration and settlement. Like SSI, it relies on membership fees/donations, runs conferences, and pursues ambitious technology programs (e.g., Mars analog habitats).
• Space Frontier Foundation: A nonprofit advocating for the permanent settlement of space and commercial space development, with a similar member-driven structure. Overlapping mission in space settlement advocacy and policy positions it as a direct peer to SSI.
• National Space Society: A grassroots space advocacy nonprofit explicitly focused on space settlement and the 'High Frontier' vision championed by Gerard K. O'Neill. NSS shares SSI's space settlement advocacy orientation and member-supported funding model, making it a closely aligned peer.
• Explore Mars, Inc. A nonprofit advocating for human Mars exploration through conferences, policy work, and STEM outreach. Shares SSI's advocacy-oriented, donation-funded model and conference-driven engagement with the space community.

Emerging players

• SEDS (Students for the Exploration and Development of Space): A student-led nonprofit advocating for space exploration and settlement, with chapters at universities. Comparable to SSI in grassroots advocacy and space-settlement mission, but focused on student engagement and next-generation workforce development.
• Universities Space Research Association (USRA): A nonprofit consortium operating NASA-funded research facilities and programs. Comparable to SSI in nonprofit status and space research orientation, but operates at a much larger scale via university and government contracts rather than donations.
• International Space University (ISU): Founded by SSI Senior Associates (Peter Diamandis, Todd Hawley, Bob Richards) as a graduate-level space education institution. ISU is an institutional evolution of SSI's community and shares its space-settlement orientation, though with a formal educational and tuition-based model.

Broad incumbents

• AIAA (American Institute of Aeronautics and Astronautics): The largest professional society for aerospace engineers, hosting conferences and publishing research across space technology. As a broader incumbent in the same space R&D ecosystem, AIAA serves a comparable technical community but with a much larger institutional footprint.

Others

• XPRIZE Foundation: Founded by Peter Diamandis, an SSI Senior Associate and former ISU co-founder. While incentive-prize rather than pure research, XPRIZE shares SSI's space-settlement mission orientation and is part of the same alumni-driven ecosystem.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@SSISpaceStudiesInstitute/featured
• Facebookfacebook.com/spacestudiesinstitute
• LinkedInlinkedin.com/company/space-studies-institute

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Space Studies Institute