Porsche Shutters E-Bike, Battery, and Software Subsidiaries — 500+ Jobs Cut in 'Refocus on Core' Pivot

Q: What Porsche Is Actually Closing

From the May 8 announcement and TechCrunch's coverage: Cellforce Group — Porsche's high-performance battery cell joint venture, founded 2021 to make “batteries that would distinguish its EVs from other companies.” Already restructured in August 2025 when Porsche abandoned in-house battery manufacturing plans. Now fully shut. Porsche eBike Performance — Subsidiary making e-bike drive systems, founded around 2021. Closes entirely. Cetitec — Networking software unit serving both Porsche and the wider Volkswagen Group. Closes; software work absorbed by VW Group platforms. Layoffs: 500+ employees across the three subsidiaries. New strategy: “Technology-open powertrain strategy” — Leiters' phrase for “we are buying batteries, software, and components from the most cost-effective external supplier.” Context: Part of a broader March 2026 business realignment under new CEO Leiters, who replaced Oliver Blume in 2025.

By Jaspal Singh May 9, 2026 Updated: May 9, 2026

Porsche announced on Friday that it is closing three subsidiaries: Cellforce Group (battery cells), Porsche eBike Performance (e-bike drive systems), and Cetitec (networking software). More than 500 employees will lose their jobs. CEO Michael Leiters framed it as “refocusing on our core business” and called the cuts “painful but necessary.” In aggregate, this is the largest in-house-tech retreat by a German luxury OEM in the EV era — and it tells you something about where legacy automakers are quietly heading.

The bigger story is not Porsche specifically. It is that the “every car company becomes a software company” thesis that dominated 2020-2024 corporate strategy is unwinding in front of us. VW Group's CARIAD has been a multi-year embarrassment. Mercedes shut down major in-house software efforts last year. BMW quietly downsized its battery cell joint venture. Now Porsche — arguably the most prestigious vertical-tech effort in German auto — is closing its battery, e-bike, and software arms in the same press release.

What Porsche Is Actually Closing

From the May 8 announcement and TechCrunch's coverage:

Cellforce Group — Porsche's high-performance battery cell joint venture, founded 2021 to make “batteries that would distinguish its EVs from other companies.” Already restructured in August 2025 when Porsche abandoned in-house battery manufacturing plans. Now fully shut.
Porsche eBike Performance — Subsidiary making e-bike drive systems, founded around 2021. Closes entirely.
Cetitec — Networking software unit serving both Porsche and the wider Volkswagen Group. Closes; software work absorbed by VW Group platforms.
Layoffs: 500+ employees across the three subsidiaries.
New strategy: “Technology-open powertrain strategy” — Leiters' phrase for “we are buying batteries, software, and components from the most cost-effective external supplier.”
Context: Part of a broader March 2026 business realignment under new CEO Leiters, who replaced Oliver Blume in 2025.

Why the Vertical Tech Bet Failed at Porsche

The original logic for Cellforce was crisp: Porsche bet that owning the battery cell would let it differentiate its EVs in performance characteristics that mass-market EVs could not match — energy density, charge rate, thermal performance. That was Oliver Blume's 2022 framing: “The battery cell is the combustion chamber of the future.” The bet did not pay off. By August 2025 Porsche had quietly stopped manufacturing in-house cells, falling back on external suppliers. Friday's announcement is the formal cremation.

The reason is straightforward economics. Battery cell manufacturing is a high-fixed-cost, low-margin, scale-driven business. Porsche sells about 300,000 cars per year. CATL, BYD, LG Energy, Panasonic, and Samsung SDI each ship batteries equivalent to ~10-30 million cars per year. The unit-economics gap is roughly 30-100x. Porsche's only path to making cells economically would have been licensing IP to scaled players or selling to other OEMs — both options collide with the “differentiate Porsche EVs” thesis. The thesis was incompatible with the math from day one. It just took five years to admit that.

The Pattern: Every Legacy OEM Is Quietly Retreating from In-House Tech

The auto industry's vertical-integration push of the early 2020s is reversing across the board:

VW Group's CARIAD — Multi-year software effort, multiple CEO restructures, ultimately licensing core architecture from Rivian via the November 2024 JV (covered in our VW-Rivian shareholder analysis).
Mercedes-Benz — Shut down major in-house software efforts in 2025; partnered with Google for infotainment and Microsoft for fleet operations.
BMW — Quietly downsized in-house battery cell manufacturing; now sourcing predominantly from CATL and EVE.
Stellantis — Closed two in-house software units in 2024; expanded reliance on Foxconn's MIH platform.
Porsche (now) — Cellforce, eBike Performance, Cetitec all closing.

The companies that ARE building successful vertical tech are the EV-natives: Tesla (cells, software, AI chip), Rivian (zonal software, demonstrated by VW's licensing deal), BYD (cells, batteries, software). The legacy OEM pattern is now: identify what you do best (engine engineering, brand, distribution), buy the rest.

My Take

Porsche just gave the German auto industry permission to stop pretending. The vertical-tech thesis was always more about prestige than economics — German engineering culture has historically resisted “buying from outside” — and the financial results have been devastating. Cellforce burned billions over five years for no commercial yield. Cetitec served VW Group's CARIAD ambitions, which themselves were a generationally expensive failure. eBike Performance was a bet that Porsche-branded e-bikes could be a real business; the unit economics never closed.

The honest read is that legacy OEMs got the strategy backwards in 2020-2022. The right model is not “every car company becomes a software company.” It is “every car company becomes a hardware company that integrates the best external software, batteries, and electronics.” Tesla and BYD are exceptions because they had the capital, talent, and scale from EV-native day one. Porsche, BMW, Mercedes, and Stellantis are not exceptions and never were. Friday's announcement is the formal acknowledgment.

The other thing worth flagging: 500 jobs lost is a real human cost masked by “refocus on core” corporate-speak. These are battery scientists, embedded software engineers, and e-bike drivetrain specialists with deep technical skill. They are not interchangeable with the staff Porsche is preserving (engine, chassis, marketing). The industry is leaving behind a layer of mid-career technical talent that bet careers on vertical-tech roadmaps that have now closed. That talent will land somewhere — likely at the EV-natives or Chinese suppliers — and accelerate the trends that are killing legacy OEM tech ambitions in the first place.

Frequently Asked Questions

What is Cellforce Group?
Cellforce was Porsche's joint venture for high-performance battery cells, founded in 2021. The goal was producing differentiated cells for Porsche EVs (energy density, charge rate, thermal performance). It already restructured in August 2025 when Porsche abandoned in-house manufacturing; the May 2026 announcement is the full closure.

What is Cetitec?
Cetitec was Porsche's networking software subsidiary, serving both Porsche and the wider Volkswagen Group. It closes as part of the May 2026 overhaul; remaining work is being absorbed by VW Group's CARIAD platform consolidation.

How many people are losing their jobs?
More than 500 employees across the three subsidiaries (Cellforce, eBike Performance, Cetitec). Porsche has not yet disclosed severance terms or whether redundant roles are being offered relocation within the parent company.

Why is Porsche closing in-house tech now?
CEO Michael Leiters framed it as “refocus on core business.” The economic reality: battery cell manufacturing has scale economics that 300,000-cars-per-year Porsche cannot match against CATL, BYD, or LG Energy. In-house software efforts (Cetitec) collide with VW Group's CARIAD platform consolidation. The vertical-tech thesis was incompatible with the unit economics from day one.

What does this mean for Porsche EVs?
Porsche is moving to a “technology-open powertrain strategy” — buying batteries from external suppliers (likely CATL, BYD, LG Energy) and absorbing software into VW Group platforms. Customers should not see immediate product impact, but the company's claim to “Porsche-engineered batteries” is over.

The Bottom Line

Porsche's three-subsidiary closure is the formal end of the “German luxury OEM as vertical tech company” experiment. 500 jobs gone, billions of euros sunk over five years for no commercial yield. The pattern is now industry-wide: legacy OEMs retreat to core engineering and buy the rest. The EV-natives (Tesla, Rivian, BYD) keep their vertical advantage. The transition from premium engineering company to premium integration company is hard to swallow culturally but harder to avoid economically.