Sigma Engineering AB

What Sigma Engineering AB does

Sigma Engineering AB is a privately held Swedish industrial equipment company headquartered in Karlstad, founded in the 1960s as a process-industry consultancy and repositioned in 1978 around its proprietary Mecer technology for etchant regeneration and copper recovery in printed circuit board (PCB) manufacturing. The firm designs, builds, and services capital equipment — primarily the Mecer System and Oxidation Reactor System — that regenerates both alkaline and acidic etchants in a closed loop, recovers pure copper sheets as a by-product via solvent extraction and electrowinning, and replaces conventional hydrogen peroxide with oxygen-based oxidation covered by multiple granted patents.

The company monetizes through three streams: one-time capital sales of equipment systems and auxiliary components (buffer tanks, automation, control units, spare parts, consumables), plus tiered multi-year service contracts (Basic, Standard, Premium) that add remote diagnostics, trend analysis, on-site maintenance, training, and laboratory chemical analysis. Go-to-market is enterprise field sales executed via a five-partner global agent network — CHEMPLATE (Spain), STEPAN (Central & Eastern Europe), IEC (North America), SCB Interconnection (India), and AGES (Taiwan and Eastern Asia) — supplemented by Sigma direct sales for Western Europe, Africa, and South America.

With 11 employees, 100+ systems installed across four continents over 40+ years, and no disclosed funding rounds or external investors, Sigma operates as a niche, founder-controlled specialist whose competitive position rests on patented chemical-process IP, long-lifecycle installed assets, and recurring service revenue from PCB manufacturers facing tightening environmental compliance.

Name

Sigma Engineering AB

Legal name

Sigma Engineering AB

Website

https://sigma-mecer.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

11–50 employees

Short description

Sigma Engineering AB is a Swedish private firm that designs, sells, and services Mecer industrial systems for closed-loop etchant regeneration and copper recovery at printed circuit board manufacturers worldwide.

Ownership category

akta.pro rank

Product category

Industrial Etchant Regeneration & Copper Recovery Equipment

NAICS

Industrial Machinery Manufacturing (33324)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Copper Refining (Electrorefining & Fire Refining) (IMAKADAF)

Keywords

• Etchant regeneration systems
• Copper recycling equipment
• PCB manufacturing systems
• Industrial oxidation equipment
• Closed-loop chemical recycling

Headquarters

HQ city

Karlstad

HQ country

Sweden

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment and System Sales: Sale of industrial equipment systems including the Mecer System for etchant regeneration, Oxidation Reactor Systems, buffer tanks, automation equipment, and system control units. These are capital equipment purchases for PCB manufacturing facilities.
2. Service and Support Contracts: Service packages and technical support including Basic, Standard, and Premium tiers offering system monitoring, trend analysis, remote diagnostics, on-site maintenance, training, and chemical laboratory analysis services.
3. Consumables and Spare Parts: Sale of spare parts, consumables, and chemicals required for system operation and maintenance.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels2 records

Core offering

Sigma Engineering AB designs, manufactures, and services the Mecer system — an industrial installation that regenerates alkaline and acidic etchants and recovers pure copper for printed circuit board manufacturers. The offering combines the Oxidation Reactor System (using patented oxygen-gas oxidation in place of hydrogen peroxide) with solvent extraction and electrowinning units, buffer tanks, and control systems, and is complemented by tiered service packages, spare parts, consumables, and technical support delivered either directly or through regional sales agents.

Product overview

Sigma Engineering AB offers the Mecer system, a comprehensive portfolio of equipment and services for copper recycling and printed circuit board manufacturing. The core offering consists of the Mecer System (etchant regeneration system for alkaline and acidic etchant regeneration and copper recycling) and the Oxidation Reactor System (oxygen-based oxidation system for acidic etchant), both supported by auxiliary equipment including buffer tanks, automation equipment, and system control units. These systems are complemented by tiered service packages (Basic, Standard, Premium) providing support levels ranging from basic monitoring to 24/7 unlimited technical support with laboratory chemical analysis. Additional services include on-site maintenance, training, technical consultation, and consumables supply. The company has delivered over 100 Mecer systems across 4 continents since 1978.

Differentiator

Problem solved

Functional benefit

Brands

• Mecer: Equipment for copper recycling and modernization of hardboard plants, specifically for printed circuit board production.

Products and services

• Mecer System Industrial etchant regeneration and copper recycling system for printed circuit board manufacturing; supports closed-loop recycling of both alkaline and acidic etchants and plating of pure copper sheets as a by-product.
• Oxidation Reactor System Oxidation reactor that uniformly mixes and circulates acidic etchant with oxygen gas (from an oxygen generator or gas cylinders) to drive the oxidation reaction, used as part of the Mecer system.
• Buffer Tanks and System Control Units Auxiliary hardware including buffer tanks, automation equipment, and system control units that support the operation of Mecer systems in PCB manufacturing facilities.
• Spare Parts and Consumables Spare parts and chemicals used for maintenance and ongoing operation of Mecer systems, available for purchase individually or with discounts under service contracts.
• Service Package (Basic, Standard, Premium tiers) Tiered multi-year service contracts for installed Mecer systems, ranging from basic monitoring and reporting (Basic) to trend analysis, remote diagnostics, monthly reporting, and 10 hours of free technical support (Standard), up to unlimited 24/7 technical support, laboratory chemical analysis, and a chemical sampling kit (Premium).
• On-site Maintenance and Training Preventive on-site maintenance performed by experienced service technicians, including training of customer staff and creation of customer-specific operational routines for Mecer systems.
• Technical Support and Consultation Remote technical support and consultation from Sigma engineers to help customers resolve operational challenges on their Mecer systems without incurring on-site service costs.

Quantifiable outcome

• 100+ Mecer systems delivered and installed on 4 continents
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core.

• CHEMPLATEcoreChannel Partner/ Reseller/ DistributorCHEMPLATE serves as sales representative for Sigma in Spain, providing local sales support and customer contact for Mecer systems.
• STEPANcoreChannel Partner/ Reseller/ DistributorSTEPAN serves as sales representative for Sigma covering Central & Eastern Europe market, with contact Torsten Kühn.
• IEC (International Equipment Corporation)coreChannel Partner/ Reseller/ DistributorIEC serves as sales representative for Sigma covering North America market, with contact Chuck Williams.
• SCB InterconnectioncoreChannel Partner/ Reseller/ DistributorSCB Interconnection serves as sales representative for Sigma covering India market, with contact Subhash Bhargava.
• AGEScoreChannel Partner/ Reseller/ DistributorAGES serves as sales representative for Sigma covering Taiwan and Eastern Asia market, with contact Albert Yeh.

Scale indicators6 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Aurubis: Aurubis is one of the world's largest copper recyclers and refiners, using electrorefining and electrowinning. It is a broad incumbent peer because Sigma's copper-recovery technology is built on the same electrowinning principles applied at much smaller, distributed scale inside PCB plants.
• Huntsman Corporation (Electronics segment): Huntsman's electronics materials business supplies PCB and semiconductor process chemistry. It is a broad incumbent peer because it serves the same PCB manufacturing customer base with chemistry solutions that span etchants and related process consumables.
• Element Solutions Inc: Element Solutions supplies specialty chemicals and process solutions to the electronics industry, including PCB fabrication. It is a broad incumbent peer because it competes with Sigma in the chemistry and process services serving PCB manufacturers and has the scale to bundle etchant management with other offerings.
• JX Metals (Nippon Mining & Metals): JX Metals is a major copper refiner and supplier of copper materials for the electronics industry. It is comparable because Sigma's electrowinning-based copper recovery competes — at the margin — with refined copper supply from large refiners, and JX also serves PCB and electronics manufacturers as customers.
• DuPont Electronics & Industrial: DuPont's electronics business supplies PCB materials and processing chemistry to global manufacturers. It is a broad incumbent peer because it serves the same PCB manufacturing customer base and offers process chemistry that overlaps with the chemistry space Sigma's Mecer systems serve.
• Atotech (MKS Instruments): Atotech, now part of MKS Instruments, is one of the largest global suppliers of chemistry and equipment for PCB manufacturing. It is directly comparable to Sigma because it supplies the etchants and process solutions that Sigma's Mecer systems regenerate, making it both a complementary and competing supplier to PCB manufacturers.

Emerging players

• ESMA Group: ESMA provides electroplating and metal-finishing equipment and chemistry to industrial customers. It is an emerging-player peer because it overlaps with Sigma's electrowinning and metal-recovery technology base, though it primarily serves surface-finishing rather than PCB-specific etchant regeneration.

Direct peers

• Uyemura International: Uyemura is a global supplier of plating and surface-finishing chemistry for the PCB industry, including etchant-related solutions. It is a direct peer because it competes with Sigma in supplying PCB manufacturers process chemistry and recycling-adjacent capability for copper and etchant management.
• MEC Company: MEC Company is a Japanese supplier of PCB manufacturing equipment and chemistry, including metallization and surface-treatment systems. It is a direct peer because it provides process equipment and consumables to PCB manufacturers in the same value chain that Sigma serves with its Mecer systems.

Regional players

• TIB Chemicals: TIB Chemicals supplies process chemistry and metal recovery solutions to European industrial customers, including segments adjacent to PCB manufacturing. It is a regional peer because it competes in metal-finishing and metal-recovery chemistry relevant to Sigma's etchant regeneration and copper recovery use cases in Europe.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sigma-engineering-ab

Revenue estimate

Valuation estimate

Number of profiles

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 Sigma Engineering AB