XCCES GmbH

What XCCES GmbH does

XCCES GmbH is a German specialist in precision thermal management and joining solutions, headquartered in Herzogenrath, North Rhine-Westphalia. The firm operates a 14-person, 1,000 m² facility and centers its capability on flux-free vacuum soldering, supplemented by PVD solder deposition and magnetron sputtering — techniques suited to high-performance applications where contamination-free, mechanically robust thermal and optical joints are required.

The company runs two commercial sub-brands. PHOTONICPARTS, established in August 2023, markets custom-joined photonic sub-components and joining services to laser and photonics OEMs. CoreCooling GmbH, founded as a joint venture in March 2025, extends the same metallurgical competence into Direct-to-Chip (D2C) liquid cooling modules for data center thermal management. Both sub-brands exploit the founders' experience at Fraunhofer ILT and AMPHOS GmbH (acquired by Trumpf Group in 2018), translating high-spec vacuum soldering know-how into adjacent high-performance thermal markets.

Commercially, XCCES generates revenue through project-based and contract manufacturing engagements with photonics, laser, and data center cooling customers, complemented by international distribution partnerships with hochlaser (China, since August 2023) and TaiheiBoeki (Japan), and anchoring membership in the LASER.region.AACHEN cluster. The model is high-mix, low-volume engineering — small-batch custom sub-assemblies with high unit values rather than commodity supply — and the firm is presently in early-commercialization scaling of both sub-brands.

Name

XCCES GmbH

Legal name

XCCES GmbH

Website

https://xcces.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

XCCES GmbH is a German specialist in flux-free vacuum soldering and precision thermal/joining solutions, operating two sub-brands — PHOTONICPARTS for photonic sub-assemblies and CoreCooling for Direct-to-Chip data center liquid cooling — serving laser, photonics, and data center customers via custom engineering and Asian distributors.

Ownership category

akta.pro rank

Product category

Thermal Management and Joining Solutions

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Industrial Process Furnace and Oven Manufacturing (333994)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Cooling Systems & Thermal Management (CRAC/CRAH, Chillers, Liquid Cooling) (HDABAKAD)

akta.pro secondary industry

Cooling & Thermal Solutions (Air/Liquid, fans, thermal paste) (HDACAGAF)

Keywords

• Thermal management solutions
• Photonic component packaging
• Flux-free vacuum soldering
• Direct-to-chip liquid cooling
• Custom heatsink engineering

Headquarters

HQ city

Herzogenrath

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. Thermal management products and solutions: XCCES develops and sells cooling solutions including custom heatsinks, laser components with thermal management, and liquid cooling systems under the CORECOOLING brand. Revenue is generated through direct product sales and custom engineering solutions.
2. Photonic components and subsystems: PHOTONICPARTS sells packaged photonic components including laser crystal packages (slab, rod), non-linear crystal modules, Faraday rotators and isolators, and high-precision mirror mounts. Products range from prototypes to series production, sold directly and through distributors.
3. Engineering and design services: XCCES offers CAD design, thermal simulation, and custom packaging solutions from concept through production-ready delivery, likely combined with product sales as integrated solutions.

Go-to-market motion3 records

Distribution channels3 records

Marketing channels4 records

Core offering

XCCES GmbH develops and manufactures precision thermal management and joining solutions based on a proprietary flux-free vacuum soldering process. The company sells custom high-performance heatsinks, precision-packaged laser and photonic components, and Direct-to-Chip liquid cooling systems through its XCCES, PHOTONICPARTS, and CORECOOLING brands, serving laser, photonics, aerospace, quantum, and HPC/AI customers. Offerings span CAD design, thermal simulation, metallization, soldering, and clean room assembly, delivered as engineered solutions from prototype to series production.

Product overview

XCCES GmbH is a technology company specializing in thermal management and joining solutions for high-performance applications. The company operates through two main sub-brands: PHOTONICPARTS (founded 2023) focusing on photonic component packaging and assembly including laser crystal packages, conversion crystal modules, rotators/isolators, and mirror mounts; and CORECOOLING (launched 2025 as JV) providing Direct-to-Chip liquid cooling solutions. Core capabilities include coating technology, laser components, server/IT cooling, custom heatsinks, CAD design services, and thermal simulation. The company uses advanced flux-free vacuum soldering technology for highly reliable, thermally stable solder joints.

Differentiator

Problem solved

Functional benefit

Brands

• PHOTONICPARTS: Specializes in the integration and assembly of photonic components, delivering precision-engineered solutions for packaging, adjustment and thermal management of laser crystals, optics and fibre optics in laser technology, aerospace and quantum technologies markets.
• CORECOOLING

Products and services

• Slab Crystal Packages Laser crystal package solutions in slab geometry with soldered construction engineered for homogeneous heat dissipation in high-power laser systems, using flux-free vacuum soldering and CTE-matched heatsink materials. Targeted at laser system manufacturers and integrators working with crystals such as Yb:YAG, Nd:YAG, and Yb:KYW.
• Rod Crystal Packages Laser crystal package solutions in rod geometry designed for high-power laser applications, using PHOTONICPARTS's flux-free vacuum soldering and active alignment to deliver thermally stable, long-term-reliable crystal mounts. Targeted at laser OEMs and integrators requiring precision rod crystal assemblies.
• Conversion Crystal Modules Non-linear crystal packages for second harmonic generation (SHG), third harmonic generation (THG), and optical parametric oscillator (OPO) applications, integrating CTE-matched heatsink materials and heaters for temperature control. Sold to laser system manufacturers building wavelength conversion stages.
• Faraday Rotators and Isolators High-power Faraday rotators and isolators for laser beam control applications, leveraging PHOTONICPARTS's flux-free vacuum soldering and active alignment to deliver high isolation, low insertion loss, and long-term stability for high-power laser systems. Targeted at laser OEMs and integrators.
• High Precision Mirror Mounts Stable flexure mirror mounts with soldered construction engineered for precise optical alignment in demanding laser and photonics systems. Targeted at laser and photonics system builders needing thermally and mechanically stable opto-mechanical assemblies.
• Custom High-Performance Heatsinks Custom high-performance heatsinks engineered for maximum thermal conductivity and long-term reliability, designed for specific application requirements in laser, photonic, and high-performance electronics systems. Sold to industrial customers requiring tailored thermal management hardware.
• Precision-Packaged Laser and Photonic Components Precision-packaged laser and photonic components with robust joining and thermal management, leveraging XCCES's flux-free vacuum soldering process. Targeted at laser, photonics, aerospace, quantum, and defense customers needing highly reliable, thermally stable component packages.
• Server/IT Cooling Solutions Scalable liquid and hybrid cooling solutions for high-density servers and data-center infrastructure, designed to manage high heat densities in AI and HPC workloads. Targeted at data center operators and HPC/AI infrastructure providers.
• Direct-to-Chip Liquid Cooling Solutions Customized Direct-to-Chip liquid cooling solutions for CPUs and GPUs in AI, HPC, and high-performance electronics systems, combining thermal design, flow optimization, joining technologies, and in-house manufacturing for low thermal resistance and high integration flexibility. Targeted at data center operators and HPC/AI infrastructure providers.
• Customized Photonic Packaging Solutions Tailored crystal packaging and photonic component solutions engineered for specific optical setups, combining active solder alignment, custom heatsink design, and flux-free vacuum soldering. Targeted at laser, aerospace, and quantum technology customers with non-standard packaging requirements.
• CAD Design Services From concept to production-ready CAD design services optimized for performance, manufacturability, and integration of thermal management and photonic packaging solutions. Targeted at industrial customers needing engineering support for laser, photonic, aerospace, and HPC cooling applications.
• Thermal Simulation Services Fast, validated thermal simulations to predict performance, optimize cooling and heatsink designs, and reduce prototyping cycles for laser, photonic, and high-performance electronics applications. Targeted at engineering teams developing thermal management solutions.
• PVD and Magnetron Sputter Coating Services Functional coatings and metallization services for optics and electronics, using physical vapor deposition and magnetron sputtering to enable solderability of nearly all materials and to tailor surfaces for demanding environments. Targeted at laser, photonic, aerospace, and quantum technology customers.

Quantifiable outcome

• Sub-micron accuracy in alignment and bonding
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• LASER.region.AACHENcoreStrategic or Co-development Partner · 1 October 2023PHOTONICPARTS is a Bündnispartner (alliance partner) of LASER.region.AACHEN, a regional network promoting the Aachen laser technology cluster. The partnership was announced in October 2023.
• hochlasercoreChannel Partner/ Reseller/ Distributor · 1 August 2023hochlaser is a distributor of PHOTONICPARTS products in China. The partnership was announced in August 2023 as part of PHOTONICPARTS' international expansion strategy.
• TaiheiBoekicoreChannel Partner/ Reseller/ DistributorTaiheiBoeki distributes PHOTONICPARTS products in Japan, providing localized market access and customer support for Japanese photonics and laser technology companies.
• EPIC (European Photonics Industry Consortium)minorStrategic or Co-development PartnerEPIC is a European photonics industry consortium. PHOTONICPARTS is a member, leveraging the network for industry collaboration, market intelligence, and business development in the photonics sector.
• CoreCooling GmbHcoreStrategic or Co-development PartnerCoreCooling GmbH is a wholly-owned subsidiary of XCCES GmbH founded in March 2025 as a joint venture. It develops advanced Direct-to-Chip liquid cooling solutions, combining XCCES's thermal design and joining technologies with dedicated product development for HPC, AI, and high-performance electronics markets.
• PHOTONICPARTS (subsidiary brand of XCCES GmbH)coreStrategic or Co-development PartnerPHOTONICPARTS was founded in August 2023 by Dr. Jan Dolkemeyer and Phillip Dittmann as a subsidiary brand of XCCES GmbH. It specializes in photonic component integration and assembly, further extending XCCES's capabilities in precision packaging for laser, aerospace, and quantum technology markets.
• optenceminorStrategic or Co-development Partneroptence is a photonics industry network in Germany. PHOTONICPARTS holds a membership for industry collaboration and market visibility.
• MeetopticsminorStrategic or Co-development PartnerMeetoptics is a B2B marketplace and community for the optics industry. PHOTONICPARTS is listed as a supplier on the platform for market visibility and lead generation.
• FunckopticsminorStrategic or Co-development PartnerFunckoptics is an optics technology partner/network. PHOTONICPARTS maintains a partnership for industry collaboration.
• OPTOMANminorStrategic or Co-development PartnerOPTOMAN is a partner company in the optics industry. PHOTONICPARTS maintains a partnership for technology collaboration and market access.
• EUIPO (European Union Intellectual Property Office)minorOthersEUIPO is the European Union Intellectual Property Office. PHOTONICPARTS is referenced as engaging with EUIPO for intellectual property matters.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Vertiv: Vertiv provides data center critical infrastructure including precision cooling, power, and IT management — a broad incumbent in the data center cooling market where CORECOOLING is positioning its Direct-to-Chip liquid cooling offering.
• Rittal: Rittal (a Friedhelm Loh Group company) provides data center infrastructure including enclosure and liquid cooling solutions — comparable to CORECOOLING's data center cooling efforts, though operating as a broad infrastructure incumbent rather than a Direct-to-Chip specialist.
• Trumpf: Trumpf is a global laser systems and photonics giant that acquired AMPHOS in 2018 — a broader incumbent in the laser and photonic technology stack that overlaps with XCCES's photonics packaging customer base through its own laser system and optics businesses.
• Coherent Corp: Coherent is a large-scale photonic components, lasers, and optics manufacturer serving industrial, aerospace, and semiconductor customers — overlapping with PHOTONICPARTS on crystal packaging, Faraday rotators, and laser optics integration.

Direct peers

• CoolIT Systems: CoolIT is a leading Direct-to-Chip liquid cooling provider for HPC and AI servers — the most direct competitive peer to XCCES's CORECOOLING brand, addressing the same hyperscaler and enterprise customers with cold plate and rack-level cooling solutions.
• Eksma Optics: Eksma Optics manufactures photonic components including non-linear crystals, Faraday rotators/isolators, and laser optics — directly comparable to PHOTONICPARTS's crystal packaging, rotator, and mirror mount product lines for laser technology customers.
• Raicol Crystals: Raicol Crystals produces non-linear and laser crystals (SHG/THG/OPO) for photonics applications — comparable to PHOTONICPARTS's conversion crystal modules and laser crystal packaging offerings targeting the same photonics and laser OEM customers.
• Boyd (Aavid): Boyd/Aavid is a major thermal management solutions provider for electronics, data centers, and high-performance computing — comparable to XCCES on custom heatsink engineering and integrated liquid cooling solutions for HPC and AI applications.
• Asetek: Asetek designs and manufactures liquid cooling solutions for HPC, data centers, and high-performance PCs — directly comparable to CORECOOLING's Direct-to-Chip value proposition for AI and HPC infrastructure customers.
• AMPHOS GmbH (Trumpf subsidiary): AMPHOS is the previous company co-founded by XCCES's founders (acquired by Trumpf in 2018) and historically developed ultra-short-pulse laser systems and high-vacuum soldering processes — the exact technical lineage underpinning XCCES's flux-free vacuum soldering and photonic packaging capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/xcces-gmbh
• Facebookfacebook.com/PHOTONICPARTS

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about XCCES GmbH