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# A Munich Startup Raised €10.2M to Solve the Hardest Problem in Orbital Refueling — The Plumbing
- URL: https://nexi.fund/deltavision-inorbit-refueling/
- Published: 2026-07-28T14:30:11.000Z
- Updated: 2026-07-28T14:30:11.000Z
- Description: deltaVision, a German fluidic systems manufacturer, raised €10.2M in its first external round to scale production of valves and pumps for in-orbit refueling. Profitable since 2022.
- Author: Nexi.fund Labs
- Tags: Space & Expansion, #mode-1, #hook-number, #track-E

€10.2 million. That is what deltaVision, a Munich-based fluidic systems manufacturer, just raised in its first external funding round. The money is earmarked for one purpose: building the plumbing for in-orbit refueling.

🎯

deltaVision closed a €10.2M ($11.6M) round led by KT Ventures and Valemount Capital, with participation from Futury Capital — its first outside capital since a \~€1.2M convertible loan 1.5 years ago.  
  
70% of the proceeds will expand manufacturing output fivefold, including a new US facility by year-end; 30% will fund R&D for in-orbit refueling subsystems.  
  
The company has been profitable since its 2022 founding, serves 60+ customers across four continents, and supplies components for ESA's Argonaut lunar lander. 

## The supply chain bottleneck that launched a funding round

Spacecraft manufacturers have a problem: demand is accelerating faster than the component supply chain can keep up. As constellation operators order satellites by the thousand, launch providers scale toward weekly cadence, and government agencies lock in lunar lander contracts, the companies that make the valves, pumps, and regulators that keep spacecraft alive are hitting capacity ceilings.

It is one of them, except it has been profitable since day one. It grew from a three-person spinout to 134 employees in a former Siemens plant in Munich without taking a single euro of venture capital. The €10.2M round, led by KT Ventures and Valemount Capital (both doubling down after their earlier convertible loan), is its first outside funding. The company waited until it was already cash-flow positive before raising dilutive capital. That says something about the segment it operates in.

"We're not investing in a promise; we're investing in a profitable business model with enormous tailwinds and international growth opportunities," Johannes Pichler of KT Ventures told SpaceNews.

The space component supply chain has been structurally under-invested for years. While billion-dollar constellation builds and headline-grabbing launch contracts attract the bulk of venture attention, the companies making the hardware that connects fuel tanks to engines operate on thinner margins, longer qualification cycles, and procurement processes that reward incumbents. The company's edge, according to CEO Alex Plebuch, is speed. Not necessarily better technology, but the ability to deliver in weeks rather than the months or years customers have come to expect from traditional aerospace suppliers. As we wrote in July, the question of who builds the gas stations in space is an $8 billion one, and it will be answered by companies that can scale production before the orbital economy outruns the industrial base supporting it.

€10.2M first external funding round ↑ 8.5× prior convertible loan 

#### Funding Round

Munich-based fluidic systems manufacturer raised €10.2M led by KT Ventures and Valemount Capital to scale production of valves, pumps, and pressure regulators for spacecraft propulsion. First external funding since a \~€1.2M convertible loan. · *Payload Space, July 2026*

## What deltaVision actually makes

The company's product line is narrower than its funding story might suggest. It does not build satellites, refueling depots, or orbital tugs. It manufactures the fluidic subsystems: solenoid valves, regulation valves, fill and drain valves, pressure regulators, and BLDC motors. These control the movement of propellant, pressurants, and other fluids inside spacecraft and launchers. Think of it as the cardiovascular system for space vehicles: invisible, critical, and hellish to qualify.

Founded in 2022 by Alex Plebuch, Denis Kiefel, and Matthias Guenther, it achieved space heritage in 2025 — a milestone that matters more in aerospace than in any other industry because component flight heritage is a procurement requirement, not a marketing badge. ESA has already tapped the company for 50+ components on its Argonaut lunar lander, and Plebuch plans to repurpose those technologies for the commercial lunar lander market.

The company's strategic bet is that in-orbit refueling will create a new class of demand for fluid transfer components. Fuel depots, servicing vehicles, and orbital tugs all require the same plumbing that it already provides for launchers and satellites, but at higher volumes and with interoperability standards that don't yet exist.

#### The refueling thesis — why now

On-orbit refueling has been a technical goal for decades but has only recently attracted commercial capital at scale. The logic is straightforward: most satellites are retired not because their electronics fail, but because their propellant runs out. A satellite that can be refueled can operate for years beyond its design life, and a satellite that can be refueled in orbit does not need to be launched as a replacement.  
  
The on-orbit satellite servicing market reached $3.18 billion in 2026, growing at 10.1% annually, and is projected to hit $6.87 billion by 2034\. Companies like Orbit Fab (refueling ports), Astroscale (debris removal), and Starfish Space (multi-mission servicing) are all pursuing adjacent pieces of the same puzzle. Its wager is that all of them will need valves, and that a single interoperable standard will win rather than a dozen proprietary ones.  
  
"We envision an open and interoperable in-orbit-services ecosystem rather than the winner-takes-all approach," Plebuch told Payload Space. "An interoperable ecosystem will dramatically increase the overall market size and hence benefit every single stakeholder." 

## Manufacturing as a moat

Its stated differentiator is not technological superiority over US competitors but manufacturing speed. The company plans to scale output to 5,000 units per year, up from current levels, with lead times measured in weeks rather than months. This matters because the space supply chain is experiencing the same kind of demand shock that semiconductor fabs saw in 2021-2023: too many customers chasing too few qualified suppliers.

Under an April 2026 agreement, US firm Mott Corp began offering its valve solutions for spacecraft propulsion flow control. The partnership gives the German startup a US distribution channel before its own American manufacturing facility is operational. The US plant, funded by the new round, is expected online by the end of 2026, targeting large national programs that require domestic production.

## The forecast for in-orbit refueling infrastructure

🔮

**How quickly does orbital refueling shift from demonstration to routine service?**  
  
The first integrated refueling payload is scheduled for March 2027\. At current cadence, commercial refueling services become available by 2029, and a full orbital fuel logistics layer — depots, tugs, standardized interfaces — reaches operational scale around 2032\. 

#### ✅ Arguments for

Constellation operators face mounting pressure to reduce replacement launch costs, making refueling economics increasingly attractive. The DoD and allied defense agencies have identified on-orbit servicing as a strategic imperative for constellation resilience. Standardized refueling interfaces (RAFTI, others) are progressing from paper to hardware, reducing interoperability risk.   
  
**Confirmation criteria:** A commercial refueling demonstration between two non-government satellites before 2028, or a DoD contract for orbital fuel storage. 

#### ❌ Arguments against

Docking two vehicles precisely enough to transfer volatile fluids in vacuum at orbital speeds remains technically unforgiving. The market has more prototype companies than paying missions. Standardization across competing refueling architectures (Orbit Fab's RAFTI vs Northrop Grumman's vs future alternatives) is unresolved. Components alone do not create a market — they require servicing vehicles, depots, and customers all to converge simultaneously.   
  
**Disconfirmation criteria:** A major refueling demo failure between 2027-2028, or consolidation of refueling startups without commercial contracts. 

📊

**Key signals to track**  
  
First integrated refueling payload launch (target: March 2027)  
  
Tetra-5 and Tetra-6 refueling hardware demonstrations (Astroscale, Northrop Grumman, Orbit Fab — 2026/2027)  
  
US manufacturing facility operational status (target: end of 2026)  
  
Adoption of a common refueling interface standard across ≥3 orbital servicing companies 

### Development scenarios

#### 🟢 Optimistic scenario (20%)

Standardized refueling interfaces gain cross-industry adoption by 2028\. Its interoperable component strategy positions it as the primary supplier to multiple servicing operators. Commercial refueling becomes a recurring revenue business, and it achieves a valuation step-change as the space logistics layer forms.  
  
**Implications:** First-mover advantage in refueling components translates into a durable market position comparable to Moog or Cobham in aerospace actuation. 

#### 🟡 Base-case scenario (60%)

The refueling market develops slower than enthusiasts project, with the first commercial service appearing around 2030\. It continues to grow its core valve business profitably while maintaining its refueling R&D program as a call option. The company scales to 5,000+ units annually but remains a niche Tier 2 supplier.  
  
**Implications:** Steady revenue growth from traditional spacecraft propulsion components, with refueling as upside optionality. 

#### 🔴 Pessimistic scenario (20%)

The refueling thesis fails to materialize: technical barriers prove higher than expected, a high-profile demonstration fails, or the market consolidates around a vertically integrated approach that leaves little room for independent component suppliers. Its US manufacturing expansion becomes a cost drag. The company remains a profitable but small player.  
  
**Implications:** No refueling revenue materializes; it continues as a traditional aerospace component supplier with moderate growth. 

## Sources

[ deltaVision Raises €10.2M to Build In-Orbit Refueling Tech Payload Space — full breakdown of the funding round, 70/30 capital allocation split, CEO interview on US manufacturing strategy Payload Space ](https://payloadspace.com/deltavision-raises-e10-2m-to-build-in-orbit-refueling-tech?ref=nexi.fund) 

Primary source for funding details, investor names, and manufacturing expansion plans

[ German component supplier deltaVision raises 10.2 million euros SpaceNews — industry perspective on deltaVision's profitable business model and the broader space supply chain dynamics SpaceNews ](https://spacenews.com/german-component-supplier-deltavision-raises-10-2-million-euros?ref=nexi.fund) 

Confirms profitability since inception and provides investor commentary

[ deltaVision raises €10.2M to build the plumbing for in-orbit refuelling TNW — technical overview of deltaVision's valve technology and the market opportunity for orbital refueling infrastructure The Next Web ](https://thenextweb.com/news/deltavision-orbital-refuelling-funding?ref=nexi.fund) 

Context on the in-orbit servicing market and competitive landscape