SEMCAB
SEMCAB is a Swedish custom manufacturer of low-voltage switchgear, electrical distribution boards, ground-mounted cabinets, control panels, and KNX building automation systems, headquartered in Gävle, serving electrical installers, wholesalers, and end customers throughout Sweden under a longstanding ABB component partnership.
- Company typePrivate
- Founded1999
- HeadquartersGävle, Sweden
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What SEMCAB does
SEMCAB (legal name: Swedish Electric Mechanical Construction AB) is a Swedish custom electrical enclosure manufacturer founded in 1999 and headquartered in Gävle, Sweden. The company designs, fabricates, and delivers low-voltage switchgear, electrical distribution boards (elcentraler), ground-mounted outdoor cabinets (markskåp), apparatus/enclosure cabinets (apparatskåp), control panels (styrskåp), media distribution centers, and KNX-based building automation systems. Production is run from a single facility in Gävle with roughly 25 employees, and SEMCAB handles the full project lifecycle from construction drawings through assembly and finished delivery, often directly commissioning at customer sites via its own workforce or partner network.
The company's product architecture relies heavily on a 2013 partnership with ABB, under which ABB supplies premium-grade low-voltage components and SEMCAB performs the final assembly of branded enclosures and switchgear. SEMCAB also specializes in KNX, an open building automation standard that integrates lighting, heating, ventilation, security, and multimedia into a single control panel; this is treated as a distinct capability rather than a feature add-on. Notable reference projects span hospitals (Gävle Sjukhus), industrial and energy customers (Scania, Atlas Copco, LKAB, Forsmark, Nilar), retail and F&B chains (COOP, MAX, Spendrups, Swedbank, SAS Huset), and municipal/government facilities (Lidingö Stadshus, KTH Arkitekturskolan, Polishuset Tierp).
SEMCAB operates a sales-led, B2B go-to-market with no public pricing; all engagements begin with custom quote requests via email ([email protected]). Revenue is generated from one-time project sales of custom enclosures plus professional services for installation, modification, and on-site service. Distribution is indirect via Swedish electrical wholesalers (Rexel, Selga, Elektra, EL-TEKNIK, K4 elektriska) and direct to electrical installation contractors (Midroc Electro, Bravida, Caverion, APQ el, JN EL AB), serving end customers throughout Sweden. In March 2026, Ahlsell Sverige signed an agreement to acquire all shares in SEMCAB (transaction expected to close April 2026), based on reported annual turnover of approximately SEK 64 million.
SEMCAB firmographics
Firmographics- Name
- SEMCAB
- Legal name
- Swedish Electric Mechanical Construction AB
- Website
- https://semcab.net
- Company type
- Private
- Founded year
- 1999
- Operating status
- Acquired
- Headcount range
- 11–50 employees
- Short description
- SEMCAB is a Swedish custom manufacturer of low-voltage switchgear, electrical distribution boards, ground-mounted cabinets, control panels, and KNX building automation systems, headquartered in Gävle, serving electrical installers, wholesalers, and end customers throughout Sweden under a longstanding ABB component partnership.
- Ownership category
- akta.pro rank
SEMCAB industry classification
Industry- Product category
- Low-Voltage Electrical Distribution Equipment Manufacturing
- NAICS
- Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314), Electrical Equipment Manufacturing (3353)
- SIC
- Switchgear & Switchboard Apparatus (3613), Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA)
- akta.pro secondary industry
- Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation) (IMAHAHAK)
Keywords
Where SEMCAB is headquartered
LocationHeadquarters
- HQ city
- Gävle
- HQ country
- Sweden
- HQ region
- Europe
Offices1 record
Markets served
SEMCAB business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Custom Electrical Enclosure Sales: SEMCAB designs, constructs, and delivers custom electrical distribution boards, switchgear, ground-mounted cabinets, apparatus cabinets, control panels, and media centers to electrical wholesalers and installation companies across Sweden. Revenue is generated through one-time product sales per project/order.
- Installation and Service: On-site installation, service, assembly, reconstruction, and modification of electrical systems, either through SEMCAB's own workforce or via partner network. Can be billed as project-based service work or ongoing service contracts.
- ABB Partnership Assembly: Assembly work commissioned by ABB, where ABB supplies high-quality components and SEMCAB handles assembly of low-voltage switchgear, ground cabinets, distribution boards, media centers, KNX systems, and related service work.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
SEMCAB product offering
Product offeringCore offering
SEMCAB designs, manufactures, and delivers custom-built low-voltage switchgear, electrical distribution boards, KNX-based building automation systems, control cabinets, ground-mounted cabinets, enclosure cabinets, and media distribution centers. The company provides full-lifecycle support from construction drawings through assembly and delivery, serving electrical installers, construction firms, and electrical wholesalers across Sweden. Since 2013, SEMCAB has held a strategic partnership with ABB for component supply and branded assembly of low-voltage switchgear.
Product overview
SEMCAB (Swedish Electric Mechanical Construction AB) operates as a specialist manufacturer of electrical distribution boards, switchgear, and enclosure solutions. The company provides a portfolio of six core product categories: Elcentraler (electrical distribution boards), KNX-centraler (smart building automation), Mediacentraler (media distribution), Markskåp (ground-mounted cabinets), Apparatskåp (enclosure cabinets), and Styrskåp (control cabinets). The product range spans from standard electrical central units to specialized KNX building automation systems and custom enclosures. SEMCAB builds flexible, customer-specific solutions ranging from design drawings through to delivery of finished central units, serving customers throughout Sweden. Since 2013, SEMCAB has maintained a strategic partnership with ABB for low-voltage switchgear components, while ABB provides the high-quality components and SEMCAB handles assembly, installation, and service.
Differentiator
Problem solved
Functional benefit
Products and services
- Elcentraler (Electrical Distribution Boards) Custom-built electrical distribution boards for residential, commercial, and industrial applications throughout Sweden, delivered as finished central units to electrical installers and wholesalers.
- KNX-centraler (KNX Smart Home/Building Automation) Building automation central units based on the KNX standard for controlling lighting, heating, ventilation, security, and remote management of household devices in residential and commercial buildings.
- Mediacentraler (Media Distribution Centers) Custom media distribution cabinets for organizing and distributing audio, video, and data signals in buildings.
- Markskåp (Ground-Mounted Cabinets) Outdoor ground-mounted electrical cabinets for electrical distribution and protection in exterior installations.
- Apparatskåp (Equipment/Enclosure Cabinets) Custom-built enclosure cabinets for housing electrical equipment, components, and switching systems.
- Styrskåp (Control Cabinets) Custom control cabinets for automation and process control in industrial and commercial facilities.
- Lågspänningsställverk (Low-Voltage Switchgear) Low-voltage switchgear assemblies, including distribution boards, ground-mounted cabinets, and control systems, primarily manufactured in partnership with ABB using highest-quality components.
- On-site Installation, Service, and Modification On-site installation, service, assembly, reconstruction, and modification of electrical systems, delivered through SEMCAB's own workforce or partner network.
Quantifiable outcome
- 339% revenue growth over 3 years (from startup to SEK 33.8 million revenue)
- +1 more outcomes
Companies that use SEMCAB
Customer profileNamed customers14 records
Segments2 records
Ideal customer profiles3 records
SEMCAB technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
SEMCAB partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core and minor.
- ABBcoreSince 2013, SEMCAB has held a formal collaboration with ABB. Under this arrangement, ABB supplies highest-quality electrical components (low-voltage switchgear, cabinets, distribution boards, KNX components) and SEMCAB performs the assembly, installation, and certain service work. This partnership provides SEMCAB with a trusted component brand to differentiate its finished enclosures and is central to SEMCAB's value proposition of quality and reliability.
- RexelcoreRexel is a major international electrical goods distributor active in Sweden. SEMCAB has multiple project references delivered via Rexel (e.g., Scharinska villan, Utsikten 2 project), indicating Rexel distributes SEMCAB products and/or commissions custom builds for its end customers.
- Midroc ElectrocoreMidroc Electro is a major Swedish electrical installation company. Multiple reference projects list Midroc Electro as the installer, including Atlas Copco Tierp, Gävle Sjukhus, Polishuset Tierp, Skäfthammars Kyrka, and Malmgårdens förskola. Midroc Electro is a regular channel partner commissioning SEMCAB products.
- BravidacoreBravida is a leading Nordic building services group. Reference projects include COOP Falun and Kiruna outdoor gyms, Södra Parkvillor Linköping, and others where Bravida acts as the electrical installation contractor commissioning SEMCAB enclosures.
- CaverioncoreCaverion is a major Nordic building engineering company. SEMCAB delivered power and control panels for Spendrups brewery in Grängesberg via Caverion, indicating an ongoing channel relationship.
- APQ elminorAPQ el is a Swedish electrical installation company with numerous reference projects listed including Hammarby depå, KTH Arkitekturskolan, Kulturcentrum Kungsängen, and multiple Stockholm and Sundsvall projects where APQ el acts as the installer commissioning SEMCAB products.
- ElprofilenminorElprofilen is referenced as the installing contractor on the Rådhuset Örebro project, commissioning SEMCAB electrical solutions.
- ElektraminorElektra is a Swedish electrical goods wholesaler referenced as the partner for the Guldsmeden project in Söderhamn.
- EL-TEKNIKminorEL-TEKNIK is referenced as the partner for the LSS-boende Gävle project.
- Selga Umeå / Nordströms elminorSelga Umeå in partnership with Nordströms el is referenced for the Ö&B project in Umeå.
- K4 elektriskaminorK4 elektriska is referenced as the electrical installer for Ikano Foods and Gångaren 10 projects.
- JN EL ABminorJN EL AB is referenced as the installing contractor for Scania pump central control panels, where SEMCAB delivered custom control panels.
Scale indicators6 records
Recent moves5 records
Expansion highlights6 records
SEMCAB competitors and assessment
Company assessmentOthers
- Rittal: Global manufacturer of industrial enclosures, switchgear cabinets and power distribution systems; identified as a supplier partner to SEMCAB (visited at Hannover Messe 2019, enclosures used in SEMCAB projects). Comparable as an enclosure/panel infrastructure provider rather than a direct competitor.
Direct peers
- Inission: Nordic industrial contract manufacturer that designs and assembles electrical cabinets, power electronics, and embedded systems for industrial OEM customers. Comparable to SEMCAB in custom-assembly business model and Nordic customer base, though broader in scope across EMS and power electronics.
- NOTE AB: Nordic electronics manufacturing services (EMS) provider producing PCBA and box-build assemblies including industrial electronics and electrical cabinets for Nordic OEM customers. Comparable as a Nordic-based custom assembly partner serving industrial customers.
- Elajo: Swedish electrical contractor and panel builder with in-house production of electrical distribution boards and control cabinets for industrial and infrastructure customers across Sweden. Closely comparable to SEMCAB in product scope (LV switchgear, control panels, custom enclosures) and Swedish market focus.
Broad incumbents
- ABB: Global leader in low-voltage switchgear, distribution solutions and building automation, and SEMCAB's long-standing component and assembly partner since 2013. Overlaps with SEMCAB across LV switchgear, distribution boards and KNX integration, but competes mainly at the OEM/system level.
- Eaton: Global power management company offering LV switchgear, distribution assemblies, and industrial control products. Comparable to SEMCAB's LV switchgear and enclosure portfolio, but at significantly larger scale and through global channel networks.
- Legrand: Global specialist in electrical and digital building infrastructures including LV distribution, wiring devices and KNX-compatible building automation systems. Comparable to SEMCAB in LV distribution and KNX integration, but at multinational scale across residential and commercial segments.
- Schneider Electric: Global leader in LV electrical distribution, industrial automation and building management. Directly competes with SEMCAB in LV switchgear and KNX-compatible building automation solutions via brands like Schneider Electric and Wiser, but at significantly larger scale and broader portfolio.
- Hager Group: European leader in low-voltage power distribution, wiring accessories, and building automation with a strong Swedish market presence. Directly comparable to SEMCAB in LV distribution boards and KNX-compatible building automation products, though operating as a much larger global manufacturer.
- Siemens: Global industrial conglomerate with extensive LV switchgear, distribution, and building automation offerings. Comparable to SEMCAB in LV distribution products and KNX-aligned building systems, but operates at multinational scale across industrial and infrastructure segments.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
SEMCAB social profiles
Digital presenceSEMCAB financial estimates
Financial estimateRevenue estimate
Valuation estimate
SEMCAB leadership team
Management profileNumber of profiles
Profiles2 records
SEMCAB funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SEMCAB M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SEMCAB
What does SEMCAB do?
SEMCAB designs, manufactures, and delivers custom-built low-voltage switchgear, electrical distribution boards, KNX-based building automation systems, control cabinets, ground-mounted cabinets, enclosure cabinets, and media distribution centers. The company provides full-lifecycle support from construction drawings through assembly and delivery, serving electrical installers, construction firms, and electrical wholesalers across Sweden. Since 2013, SEMCAB has held a strategic partnership with ABB for component supply and branded assembly of low-voltage switchgear.
Is SEMCAB a public or private company?
SEMCAB is a private company. It is classified as founder individual operated bootstrapped and is currently acquired.
When was SEMCAB founded?
SEMCAB was founded in 1999. It employs 11 to 50 people.
Where is SEMCAB based?
SEMCAB is headquartered in Gävle, Sweden, in the Europe region.
How does SEMCAB make money?
Three revenue lines are on record. Custom Electrical Enclosure Sales are the primary driver. The others are installation and Service and ABB Partnership Assembly.
Who are SEMCAB's main competitors?
Rittal is listed as an others. Direct peers are Inission, NOTE AB and Elajo. Broad incumbents are ABB, Eaton, Legrand, Schneider Electric, Hager Group and Siemens.
Does SEMCAB have an API?
No public API is recorded for SEMCAB.
What industry is SEMCAB in?
SEMCAB's product category is Low-Voltage Electrical Distribution Equipment Manufacturing. Its primary akta.pro industry code is IMAGAEAA, Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards), with a secondary code of IMAHAHAK, Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation). Its NAICS code is 335313 and its SIC code is 3613.