Fundraising Fox

Reditus Space

YC W25

Atlanta, US · Founded 2024 · 12 employees · Hiring · 7 known investors

Reditus Space builds reusable spacecraft systems that enable routine return of cargo from low Earth orbit, supporting in-space manufacturing and physical industrialization of space. The company provides infrastructure for commercial operators and manufacturers to deliver products and materials back to Earth economically.

Founders & leadership· Y Combinator alumni (W25)

Reditus Space was founded in 2024 by Stef Crum and Will Sherman.

SCStef Crum
Stef Crumin𝕏CEO & Co-FounderStef Crum holds a PhD in space systems engineering and has worked with NASA and the Space Force on orbital operations and reentry tasks. He previously founded Da Vinci Satellite, a satellite mission nonprofit, and now serves as CEO of Reditus Space.30 Under 30 2026
WSWill Sherman
Will ShermaninCTO - Co-FounderWill Sherman is the CTO of Reditus Space and studied at Georgia Tech.30 Under 30 2026

Investors · 7

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

The YC application· Winter 2025 batch

Alumni Q&A

How did your company get started? (i.e., How did the founders meet? How did you come up with the idea? How did you decide to be a founder?)
The founders met in graduate school at Georgia Tech, where both were pursuing PhDs in aerospace engineering.

Summarized from the founders' answers on their Y Combinator profile.

Images

Reditus Space photo

Competitors · 7

by search overlap
Relativity Space8 shared keywordsRelativity Space develops Terran R, a reusable medium-to-heavy-lift rocket designed for efficiency and scalability, serving government entities, telecommunications companies, and commercial customers for space access missions. The company focuses on making space exploration more accessible, reliable, and sustainable.
Proteus Space7 shared keywordsProteus Space designs custom spacecraft buses tailored to individual payload requirements using generative design and flight-proven components, eliminating the compromises of standardized bus solutions.
Capella Space7 shared keywordsCapella Space designs, builds, and operates synthetic aperture radar (SAR) satellite constellations that provide all-weather, day-and-night Earth observation imagery at sub-0.25m resolution. It offers an automated end-to-end tasking and data delivery platform serving defense and intelligence, maritime, disaster response, and infrastructure monitoring customers.
Sidus Space6 shared keywordsSidus Space is a space and defense technology company that builds LizzieSat satellites, edge-computing and avionics hardware, and AI-driven software (Orlaith, FeatherEdge, Cielo) for turning satellite and sensor data into near real-time intelligence. It serves government, defense, intelligence, and commercial customers, offering satellite manufacturing, mission operations, and 24/7 payload support across NASA, DoD, and commercial programs.
Sierra Space5 shared keywordsSpace company developing the Dream Chaser commercial spaceplane and the LIFE habitat for a next-generation LEO space station.
Sidereus5 shared keywordsSidereus Space Dynamics was a space technology research and development company operating in Italy and Europe. It has concluded its R&D program and is now in discussions with industrial partners regarding the potential acquisition of its technology assets, infrastructure, and intellectual property.
Turion Space4 shared keywordsTurion Space builds space infrastructure spanning maneuverable spacecraft, mission planning software, and orbital logistics such as refueling and servicing, with capabilities for space domain awareness and rendezvous proximity operations. The company also develops technology aimed at extracting resources by mining near-Earth asteroids.

Companies competing with Reditus Space for the same Google search keywords, organic and paid, via search-intersection analysis.

In the news

Frequently asked questions

What does Reditus Space do?
Reditus Space builds reusable spacecraft systems that enable routine return of cargo from low Earth orbit, supporting in-space manufacturing and physical industrialization of space. The company provides infrastructure for commercial operators and manufacturers to deliver products and materials back to Earth economically.
Who founded Reditus Space?
Reditus Space was founded by Stef Crum, Will Sherman in 2024.
Who are Reditus Space's investors?
Reditus Space's investors include Y Combinator, Antler, Aera VC, HEC Paris Incubator, TRAC (Third Round Analytics Capital), Transpose Platform Management, 468 Capital.
Where is Reditus Space headquartered?
Reditus Space is headquartered in Atlanta, US.