Cascade Space
YC X25San Francisco, US · Founded 2025 · 7 employees · Hiring · 23 known investors
Find your way into Cascade Space
Sign up to see every warm intro you have to Cascade Space
- Paths you didn't know you had: your email and LinkedIn already hold routes to the Cascade Space team. We find them for you
- 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
- Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone
Days of research, done the moment you sign in, with every route ranked by how warm it is.
Cascade Space develops software tools and infrastructure for designing, building, testing, and operating spacecraft communication systems. The company serves aerospace and space companies seeking to accelerate development with reduced team requirements.
Also known as Heliosphere Network Corporation · Cascade · Cascade Space Inc. · Heliosphere Network
Founders & leadership· Y Combinator alumni (X25)
Cascade Space was founded in 2025 by Jacob Portukalian and Arlen Abraham.


Investors · 23
How we know: Aurelia Foundry's portfolio page · research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: HAWKTAIL's portfolio page · research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: MGV.VC's portfolio page · research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: TRAC (Third Round Analytics Capital)'s portfolio page · Y Combinator's founder network · Not right? Tell us
How we know: Undeterred Capital's portfolio page · funding news · the VCSheet dataset · research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · funding news · research · finance.yahoo.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: funding news · research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: research · finance.yahoo.com · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Also in the syndicate · 3
Funding
SEC filings, press & company announcements$5.9M disclosed across 1 of 4 rounds · 2025–2026
- $5.9MseedJun 2026 · 2 sources
Aurelia Foundry, Garage Capital, Hawktail, Karman Ventures, Liquid 2 Ventures, MGV.VC, Night Capital, Nova Threshold, Olive Capital, Palm Drive Capital, Pioneer Fund, TRAC, Undeterred Capital, Valkyrie Ventures, Y Combinator
Source ↗ - Undisclosed amountSeedJul 2025 · 2 sourcesSource ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Cascade Space is a space communication systems company founded in 2025 and based in San Francisco. It develops tools and infrastructure for designing, building, testing and operating spacecraft communication systems, positioning itself as a commercial alternative to NASA's Deep Space Network, which the company describes as oversubscribed and unavailable for commercial missions. Its stated goal is to let customers ship faster with smaller teams.
The company has two main product lines. Cascade Designer is a browser-based tool for link budget design and simulation, with a drag-and-drop editor, a library of generic RF components and a catalog of commercially available parts from suppliers such as Plane Wave and Orbital Systems, support for vendor-supplied or user-uploaded 3D antenna patterns, CCSDS demodulator blocks computing C/N0, Eb/N0 and margin, team sharing with read-only or edit access, and an API for batch analysis of full mission trajectories from a trajectory CSV. Designer is built on spacelink, the company's open-source Python library for space communications modeling. The second line, Cascade Array, is ground infrastructure: rather than single large dishes, the company plans arrays of smaller dishes, which it argues are cheaper to build, more reliable and offer dynamic aperture size and pricing with build costs that fall over time.
On the infrastructure roadmap, the company states that its first ground station, Earth Station Zero, will be online and downlinking data from the Moon in 2026, with plans to scale to a global network by 2028; its website also advertises new capacity coming online in 2027.
Compiled by commissioned research from 9 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Related companies · 6
Companies working in the same space as Cascade Space.
Timeline · 6
launches, deals, and filingsCascade Space announced a $5.9 million seed round to build an end-to-end platform for space communication system design, test and operation, with funding directed at development of the Cascade Portal. Participants included Nova Threshold, Undeterred Capital, Y Combinator, Night Capital, Olive Capital, Valkyrie Ventures, Karman Ventures, Palm Drive Capital, Garage Capital, TRAC, Aurelia Foundry, Hawktail, MGV.VC, Pioneer Fund and Liquid 2 Ventures.
$5.9M source ↗
Cascade Space is listed as an active company in Y Combinator's Spring 2025 batch, with Tom Blomfield as primary partner.
Cascade Space launched Cascade Designer, spacecraft communication system design software with a graphical editor, link margin calculation, trajectory analysis via API and team sharing.
Cascade Space released spacelink, an open-source Python library for link budget and communication system analysis, which underpins the Cascade Portal/Designer implementation.
An earlier company launch presented deep space communications as a service, aimed at lunar missions.
The company open-sourced spacelink, a Python library of communication system analysis functions used in the Cascade Portal and Cascade Designer implementations.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structureIn the news
▸Research sources · 9
primary sources listed
- Cascade Spacecascadespace.com · web
- Cascade Spacecascade.space · web
9 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Cascade Space do?
- Cascade Space builds design software and a deep space ground station network for spacecraft communication systems.
- Who founded Cascade Space?
- Cascade Space was founded by Jacob Portukalian, Arlen Abraham in 2025.
- Who are Cascade Space's investors?
- Cascade Space's investors include Aurelia Foundry, HAWKTAIL, MGV.VC, Pioneer, Rolling Fun GP, TRAC (Third Round Analytics Capital), Undeterred Capital, Y Combinator and 12 more.
- How much funding has Cascade Space raised?
- Cascade Space has disclosed $5.9M raised across 1 of its 4 known rounds.
- Where is Cascade Space headquartered?
- Cascade Space is headquartered in San Francisco, US.
















