What Walki Group Oy does

Walki Group Oy, headquartered in Espoo, Finland, is an international manufacturer of sustainable packaging and engineered materials with roots dating to 1930. The company is organized into three business areas: Consumer Packaging (fibre-based and recyclable flexible packaging, compostable bags, mono-material pouches, lidding), Industrial Packaging / Packaging Materials (barrier boards, reel wrap, fibre-based ovenable trays, anti-skid end discs for converters and forest/paper/steel customers), and Engineered Materials (construction membranes including vapour control layers, A2 fire-rated systems, low-carbon insulation facings, automotive underbody shields, and PVC-free print media). Its underlying technology spans dispersion coating, extrusion coating, multi-layer lamination, and water-based flexographic printing, supported by in-house Technical Competence Centres and a Recyclability Lab in Valkeakoski and Pietarsaari, Finland.

Walki monetizes primarily through B2B direct sales of project-priced, volume-contracted sustainable packaging and engineered materials to packaging converters, consumer brand owners, retailers, construction and insulation companies, automotive manufacturers, and print/signage distributors across Europe and Asia. The company operates 17 production facilities in 12 countries and supports customers with R&D collaboration, technical service, and application development. Following One Equity Partners' 2018 acquisition that drove 125% revenue growth and seven follow-on deals (Plastiroll 2019, Plasbel 2021, Westpak/Flexipack 2022, folian 2022), Walki was acquired in April 2024 by Japan's Oji Holdings Corporation, becoming a wholly-owned subsidiary within Oji's global packaging business. The company has divested its Russian subsidiary (2023) and pursues explicit alignment with EU PPWR recyclability requirements, holding SBTi-validated 1.5°C targets and consecutive EcoVadis Gold Medals.

Name

Walki Group Oy

Legal name

Walki Group Oy

Website

https://walki.com

Company type

Private

Founded year

1930

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Walki Group Oy is a Finnish international manufacturer of sustainable packaging and engineered materials, supplying fibre-based, recyclable and compostable packaging plus construction membranes and technical products to converters, brand owners, and industrial customers across Europe and Asia.

Ownership category

akta.pro rank

Product category

Sustainable Packaging Materials

NAICS

Plastics Bag and Pouch Manufacturing (326111), Plastics Packaging Film and Sheet (including Laminated) Manufacturing (326112), Corrugated and Solid Fiber Box Manufacturing (322211)

SIC

Plastics, Foil & Coated Paper Bags (2673), Unsupported Plastics Film & Sheet (3081), Paperboard Containers & Boxes (2650)

akta.pro primary industry

Flexible Plastic Packaging (Bags, Pouches, Sachets) Manufacturing (IMANAEAC)

akta.pro secondary industries

Corrugated Packaging & Boxes (RSC, die-cut, bulk bins) (IMAMAHAA), Protective Paper Packaging (Honeycomb, Paper Cushioning, Paper Wrap) (IMALACAH)

Keywords

• Sustainable packaging materials
• Fibre-based packaging
• Engineered materials
• Recyclable flexible packaging
• Construction membranes

Headquarters

HQ city

Espoo

HQ country

Finland

HQ region

Europe

Offices21 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Product Sales – Sustainable Packaging Materials: Walki generates revenue primarily through the sale of sustainable packaging and engineered materials including flexible packaging, fibre-based solutions, barrier coatings, compostable bags, and industrial/engineered materials. Revenue is project-based, driven by volume contracts with converters, brand owners, and industrial companies.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

Walki Group Oy manufactures and sells sustainable packaging and engineered materials, including fibre-based, recyclable, and compostable flexible packaging (laminated papers, monomaterial pouches, lidding films, barrier boards, compostable biobags), industrial packaging materials (reel wrap, anti-skid discs, biomass covers, barrier liners), and engineered materials such as construction membranes (vapour control, house wrap, fire-rated A2 membranes) and insulation facings. Customers include packaging converters, consumer brands, retailers, and industrial/construction companies served through direct B2B sales and a 17-site production network across Europe and Asia.

Product overview

Walki Group Oy is an international manufacturer of sustainable packaging and engineered materials organized into three business areas: Consumer Packaging, Packaging Materials, and Engineered Materials. The company offers a comprehensive portfolio of fibre-based, recyclable, and compostable packaging solutions alongside construction membranes and technical products. Core products include dispersion coating and PE-coated recyclable paper-based packaging (Walki Opti Seal, Walki Lid, Walki Foil, Natural Polymer flow packs), monomaterial film solutions, compostable waste bags (Bioska brand), and barrier boards for folding cartons. The construction segment features vapour barrier membranes (Walki Active, Walki Roof Mono, Walki Wall products), fire-rated membranes (Wall Tight FR G A2), and insulation facings (WICO2). Technical products include PVC-free print media (Walki Print Media XXL, Billboard Pro L), automotive materials, and soft foam carrier solutions. Recent innovations include the Lamibel MDO-PE mono-material pouch with Dow, fibre-based euro-hole pouches, and easy-open snack pouches. The company operates 17 production facilities across Europe and Asia and serves markets including fresh food, dry products, convenience food, non-food, paper and forest, transport, and engineered materials.

Differentiator

Problem solved

Functional benefit

Products and services

• Walki Opti Seal (Optimised PE-coated fibre packaging) Optimised PE-coated recyclable fibre packaging solution designed for recyclability in existing paper waste streams; for sustainable flexible packaging applications.
• Walki Lid (Fibre-based lidding material) Recyclable fibre-based lidding material combining performance, printability and circular design for food packaging applications such as instant noodle lidding.
• Walki Foil (High-barrier wrapping for butter/margarine) High-barrier wrapping solution specifically designed for butter and margarine packaging applications.
• Walki Natural Polymer (Flow packs) Natural polymer-based packaging solution for flow pack applications, supporting sustainable flexible packaging.
• Walki Fibre Pro Frame (Sealing-frame paper) Sealing-frame paper designed for secondary packaging applications.
• Dispersion Coating (Recyclable medium barrier paper-based solutions) Water-based dispersion-coated recyclable medium-barrier paper-based solutions for sustainable packaging, providing barrier functionality while remaining recyclable in paper waste streams.
• Monomaterial Film Solutions Monomaterial film packaging solutions designed for recyclability in plastic recycling streams.
• Mono Thermoforming Web Recyclable monomaterial thermoforming base webs for packaging applications.
• Compostable Waste Bags Compostable waste bags certified to EN 13432 for sustainable biowaste collection.
• Mono PE Waste Bags Single-material polyethylene waste bags designed for recycling compatibility.
• Sustainable Shopping Bags Sustainable shopping bag solutions for retail applications.
• Compostable Fruit & Vegetable Bags Compostable bags specifically designed for packaging fresh produce.
• Walki Pack Barrier Boards Barrier boards for circular folding carton packaging applications.
• Fibre-based Food Tray (Ovenable & Microwaveable) Fibre-based ovenable and microwaveable food tray materials for convenience food packaging.
• Barrier Liner for Corrugated Board Barrier lining solutions for corrugated board packaging.
• Barrier Lining for Solid Board Barrier lining solutions for solid board packaging applications.
• Fibre-based Reel Wrap Fibre-based reel wrap for protecting reels during storage and transport in paper and steel industries.
• Walki Disc Gripcoat (Anti-skid end discs) Anti-skid end discs for reels to prevent movement and damage during transport.
• Fibre-based Biomass Cover Fibre-based cover for biomass applications in industrial settings.
• Barrier Paper Ream Packaging Barrier paper wrappers for ream packaging applications.
• Walki Roof Mono (Monolithic roofing underlay) Monolithic roofing underlay for moisture control in building construction.
• Vapour Control Membranes Vapour control layers for building construction moisture management.
• Walki Wall Wind/Rain Barrier (House Wrap) House wrap providing wind and rain barrier protection for building exteriors.
• Radon/Methane Barrier Membranes Ground protection membranes for radon and methane barrier applications in groundworks.
• Soft Foam Carrier Materials Carrier solutions for soft foam industry applications.
• Walki Print Media XXL (PVC-free large format print media) PVC-free, recyclable, halogen-free, REACH-compliant large format print media for billboards and banners; HP Latex certified, with flame-retardant options available.
• Thermoformable Automotive Materials Thermoformable materials for automotive applications including underbody shields and interior skins.
• Walki Active (Breathable vapour barrier membrane) Dual-purpose vapour variable membrane from PP non-woven and functional film that adapts barrier properties based on humidity levels, preventing moisture damage in buildings.
• Walki Wall Tight FR G A2 (Fire-rated construction membrane) Non-combustible, A2-s1, d0 Euroclass flame-retardant membrane for walls and ceilings providing moisture control and fire safety for public buildings and high-rises.
• Walki Wall Tight FR B 215 Tape (Flame-retardant tape for construction membranes) Flame-retardant tape with Euroclass B fire rating used in combination with Walki Wall Tight FR G A2 to seal construction membranes while preserving the A2-s1, d0 system rating.
• Walki Billboard Pro L (HP Latex certified print media) HP Latex certified PVC-free print media for advertising billboards and banners, with state-of-the-art ink-receptive layer and recyclable design.
• Walki EVO Seal REH (Fibre-based euro-hole pouch) Reinforced fibre-based euro-hole pouch concept for sweets and hardware, with invisible double-layer strip reinforcement to prevent tearing at the euro-hole punching, enabling brand owners to switch from film to paper pouches.
• Lamibel MDO-PE (Mono-material MDO-PE pouch with Dow) Innovative mono-material MDO-PE pouch with premium matte finish for high-performance food packaging, designed for recyclability in line with PPWR requirements. Co-developed with Dow.
• Walki WICO2 (Low-carbon insulation facing) Low-carbon insulation facing that reduces carbon footprint by over 50% compared to market average, supporting EU 2050 carbon neutrality goals.
• Steelex Mono & Steelex Monolight (Recyclable steel packaging) Innovative recyclable steel packaging materials designed to protect steel coils and plates during transport while reducing carbon footprint.
• Walki Underbody Shields (Glass-fibre-free, recyclable) Recyclable, lightweight, thermoformable, flame-retardant underbody shields using polyester-based materials for automotive applications without glass fibre.
• Flame-Retardant Refrigerator Backings Flame-retardant refrigerator backings meeting updated IEC safety norms while improving energy efficiency.
• Easy-Open Mono PE Pouch for Snacks Monomaterial PE pouch with laser preformation enabling controlled easy opening for snacks (nuts, dried fruit, chocolate), fully recyclable in plastics stream.
• PE Lamination Films for Converters PE lamination films supplied to packaging converters for further conversion into flexible packaging.
• Compostable Packaging Lamination Film Compostable lamination films for packaging applications supplied to converters.
• Fibre-based Flexible Materials for Converters Fibre-based flexible materials for packaging converter applications.
• Bioska (Compostable biobags) Compostable biobags and sacks under the Bioska (and Hauska) brand for collecting biowaste without plastic contamination; certified to EN 13432 standard.

Quantifiable outcome

• 27% growth in paper-based solutions in 2025
• +5 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature14 records

Partnerships

Nine partnerships are on record, tiered strategic, former, core and minor.

• DowstrategicStrategic or Co-development Partner · 1 January 2026Walki and Dow collaborated to develop an innovative mono-material MDO-PE pouch with premium matte finish, designed for recyclability and high-performance food packaging in line with PPWR requirements. This is a co-development partnership bringing together Walki's coating and film expertise with Dow's polyethylene materials.
• OOO Bumazhnaya Upakovka (Paper Packaging LLC)formerOthers · 17 August 2023Walki divested its Russian subsidiary Walki LLC (employing 31 persons in Svetogorsk) to OOO Bumazhnaya Upakovka (Paper Packaging LLC) in August 2023. All required regulatory approvals were received and the transition of 100% of shares was completed.
• The Paper Lid Company (TPLC)strategicStrategic or Co-development Partner · 27 June 2023Walki invested in TPLC, a Finnish start-up developing recyclable paper lids for hot and cold cups. Walki supports TPLC through material conversion and printing capabilities, development of recyclable raw materials, and R&D Community membership. TPLC's Masku facility is scaling production with Walki's support.
• RovemastrategicStrategic or Co-development Partner · 13 June 2023Walki developed its reinforced euro-hole fibre-based pouch concept (Walki EVO Seal REH) in close collaboration with Rovema, a packaging machine producer. This collaboration ensured the pouch concept is compatible with Rovema's packaging equipment for seamless adoption by brand owners.
• folian GmbHcoreOthers · 1 December 2022Walki completed the acquisition of 100% of folian GmbH in December 2022. The German flexible packaging specialist, founded in 1999 and family-owned, generates EUR 27 million in sales and employs ~94 people in Stralsund. folian provides high-quality flexographic printing using water-based inks, complementing Walki's portfolio with lower CO2 footprint solutions.
• Westpak and FlexipackcoreOthers · 4 October 2022Walki acquired 100% of Westpak Oy Ab and Flexipack Oy Ab in October 2022, strengthening its position as a provider of converted flexible packaging solutions in the Nordics. Combined 2021 sales ~EUR 40 million, ~100 employees. Westpak is based in Säkylä, Finland; Flexipack in Vaasa, Finland.
• Åbo Akademi University / Carl-Eric WilénminorStrategic or Co-development Partner · 3 February 2021Walki collaborates with Professor Carl-Eric Wilén at Åbo Akademi University's Centre of Excellence for Functional Materials (FUNMAT) to develop next-generation halogen-free flame-retardant materials. The research focuses on developing flame-retardant substances that are efficient in small quantities, environmentally friendly, and compatible with Walki's extrusion coating technology.
• Plasbel Plásticos SAUcoreOthers · 1 January 2021Walki, supported by One Equity Partners, acquired a majority stake in Spanish packaging producer Plasbel in 2021. Plasbel specializes in sustainable and recycled packaging solutions, expanding Walki's European presence and strengthening R&D capabilities in circular packaging materials. Located in Alcantarilla, Murcia, Spain.
• Plastiroll OycoreOthers · 23 May 2019Walki acquired 100% of Plastiroll Oy in May 2019 from funds managed by Sponsor Capital and key personnel. Plastiroll is one of Europe's leading producers of compostable bags and films under Bioska and Hauska brands, with ~90 employees and EUR 31 million turnover. Manufacturing facilities located in Ylöjärvi, near Tampere, Finland.

Scale indicators21 records

Recent moves10 records

Expansion highlights4 records

Broad incumbents

• Smurfit Kappa: Smurfit Kappa is a global paper-based packaging leader with strong European presence across corrugated, containerboard, and bag-in-box. It competes with Walki in paper-based barrier boards, folding cartons, and fibre-based solutions for European consumer goods and industrial customers.
• Mondi Group: Mondi is a European-headquartered global leader in sustainable paper-based packaging with EUR 7+ billion revenue. It is directly comparable to Walki's fibre-based packaging, corrugated, and flexible packaging businesses, and competes with Walki for many of the same European FMCG and industrial customers.
• Sonoco: Sonoco is a global provider of paper-based and flexible packaging with significant European operations. It is comparable to Walki in industrial paper packaging, barrier boards, and converted flexibles, particularly for the paper and forest industry and consumer goods sectors.
• Amcor: Amcor is a global packaging giant with ~$14 billion revenue across flexible and rigid packaging. It competes directly with Walki in flexible packaging for food and healthcare, and represents the kind of large-scale incumbent that pressures Walki's pricing and customer relationships in Europe.
• Sealed Air: Sealed Air is a global packaging solutions provider specializing in food packaging and protective packaging. It is comparable to Walki in food-contact flexible packaging and to Walki's engineered materials business for industrial and construction applications.

Direct peers

• Ahlstrom: Ahlstrom (formerly Ahlstrom-Munksjö) is a Finnish-headquartered specialty fibre-based materials manufacturer focused on sustainable and innovative fibre solutions. It is highly comparable to Walki in fibre-based packaging, filtration, and construction materials, sharing similar Nordic heritage and sustainability positioning.
• Constantia Flexibles: Constantia Flexibles is one of the world's largest manufacturers of flexible packaging, headquartered in Austria with a similar product portfolio to Walki's flexible packaging division. It is a direct peer in monomaterial pouches, foil-based packaging, and recyclable laminates for food and consumer brands.
• Huhtamäki: Huhtamäki is a Finnish-headquartered global food and consumer packaging manufacturer with EUR 4+ billion revenue. It is highly comparable to Walki in flexible packaging, food service packaging, and fibre-based solutions, and serves many of the same European brand owners.
• Mayr-Melnhof Karton: Mayr-Melnhof is a European leader in recycled folding boxboard and carton packaging, headquartered in Austria. It competes with Walki's barrier board and folding carton business for European consumer goods converters and brand owners.
• Plásticos Alicante (Plasbel): Plasbel Plásticos is a Spanish sustainable and recycled packaging producer majority-acquired by Walki in 2021. It represents a more regional/specialized peer for the recycled and sustainable flexible packaging segment, now operating within Walki's group.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/walki

Compliance19 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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

M&A5 records

Investments1 record

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

Frequently asked questions about Walki Group Oy