Sirken
Sirken is a Norwegian digital marketplace for used and surplus building materials, connecting construction firms and consumers via 17+ quality-assured physical hubs across Norway, with click-and-collect pickup, Vipps payment, and B2B invoicing.
- Company typePrivate
- Founded2020
- HeadquartersTrondheim, Norway
- Headcount1–10
- GTM typeB2B and B2C
- OfferingDigital Commerce or Content
What Sirken does
Sirken is a Norwegian digital marketplace for used and surplus building materials, operating a hybrid online platform backed by a national network of physical hub warehouses. The platform connects two supply sides — construction firms with project surplus or demolition-yield materials, and individuals disposing of renovation leftovers — with two demand sides: private consumers seeking discounted renovation supplies (fasteners, flooring, doors, windows, office furniture) and B2B buyers needing circular procurement options. All hub-listed inventory is manually inspected and graded using a five-tier condition system (Helt ny through Slitt) before sale, and transactions settle via Vipps mobile payment, with orders collected within six days at the chosen hub using SMS-access 24/7 self-service pickup.
The technology stack centers on a Next.js-based e-commerce front end with Supabase-backed product catalog and image storage, category and condition-based search, postal-code-targeted email alerts, and a dedicated B2B Bedriftsportal for invoiced procurement. Product differentiators include the CO₂-poeng loyalty system (10% back as points redeemable at 10 points = 1 kr) and automated CO₂ reporting tied to B2B sustainability documentation. The company also operates a Direct Sales channel for partner-held inventory outside hub locations.
Sirken earns revenue primarily through transaction fees on marketplace sales, supplemented by listing and partner-channel facilitation fees. Consumer transactions are pay-as-you-go with VAT-inclusive pricing, while business accounts receive ex-VAT pricing, 30-day invoice terms, and volume discounts, with the portal targeting registration via Brønnøysundregisteret business numbers. The company is headquartered in Oslo and serves only the Norwegian market, with 17+ hub locations from Bodø in the north to Kristiansand in the south and ongoing expansion via local-operator partnerships (e.g., Nordloop AS in Larvik, Byggmakker Leangen in Trondheim). The full ownership, investor base, and headcount are not publicly disclosed.
Sirken firmographics
Firmographics- Name
- Sirken
- Legal name
- Sirken
- Website
- https://sirken.no
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sirken is a Norwegian digital marketplace for used and surplus building materials, connecting construction firms and consumers via 17+ quality-assured physical hubs across Norway, with click-and-collect pickup, Vipps payment, and B2B invoicing.
- Ownership category
- akta.pro rank
Sirken industry classification
Industry- Product category
- Reused & Surplus Building Materials Marketplace
- NAICS
- Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers (423810)
- SIC
- Wholesale-Construction & Mining (No Petro) Machinery & Equip (5082), Wholesale-Industrial Machinery & Equipment (5084)
- akta.pro primary industry
- Industrial Supplies & MRO Marketplaces (CRAFAHAA)
Keywords
Where Sirken is headquartered
LocationHeadquarters
- HQ city
- Trondheim
- HQ country
- Norway
- HQ region
- Europe
Offices17 records
Markets served
Sirken business model
Business model- GTM type
- B2B and B2C
- Offering type
- Digital Commerce or Content
- Cost components
- Operations, Infrastructure, Personnel, Supply Chain, Technology or R&D, Marketing or Sales
Revenue model
- Marketplace Transaction Fees: Sirken charges transaction fees on sales through their hub network. Sellers pay to list and sell surplus building materials through the platform, with the company taking a commission on completed transactions. Additional revenue from partner direct sales facilitated through the platform.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Consumer retail pricing with Vipps payment |
| Transaction based/ take rate | Monthly | Business account pricing with invoice payment |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Sirken product offering
Product offeringCore offering
Sirken operates a Norwegian digital marketplace for used and surplus building materials, supported by a network of physical hub warehouses. Sellers list surplus construction materials; buyers browse online, pay via Vipps (consumers) or invoice (businesses), and collect from a nearby Sirken hub within six days. All hub-held items are inspected and graded into five condition categories before sale, and the company tracks CO2 savings per product for sustainability reporting.
Product overview
Sirken operates a digital marketplace platform for circular building materials in Norway, supported by a network of physical hub warehouses and a direct-sales channel. The core platform comprises the Sirken Marketplace (online listing and sales interface), Sirken Hub (quality-inspected, self-service warehouse pickup locations), and Direct Sales (partner-to-buyer sales arranged outside hubs). Additional service layers include a Business Portal for enterprise customers (with invoice payment, VAT-exclusive pricing, volume discounts, and CO₂ reporting), the CO₂-poeng loyalty rewards program (earning 10% back as points redeemable on future purchases), and a product search alert system for email notifications. The company was founded in Norway and facilitates reuse of surplus building materials ranging from fasteners and flooring to doors, windows, and office furniture.
Differentiator
Problem solved
Functional benefit
Products and services
- Sirken Marketplace Online marketplace platform for buying and selling used and surplus building materials in Norway, connecting sellers with surplus construction materials to buyers seeking discounted supplies under circular economy principles.
- Sirken Hub Physical warehouse locations where used and surplus building materials are quality-inspected, stored, and made available for customer pickup. Hubs operate as 24/7 self-service facilities with SMS-code access.
- Direct Sales (Direktesalg) Sales channel where materials are sold directly from partner inventory without being held at a Sirken hub, with pickup or shipping arranged directly between buyer and partner after purchase.
- Business Portal (Bedriftsportal) Dedicated business customer portal offering invoice payment with 30-day credit, ex-VAT pricing, volume discounts, and CO2 reporting for sustainability documentation. Companies register using their Brønnøysundregisteret business number.
Quantifiable outcome
- 167,038 kr saved in waste costs for R. Kjeldsberg AS on sandwich element transaction
- +3 more outcomes
Companies that use Sirken
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles3 records
Sirken technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
Feature4 records
Sirken partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and minor.
- Nordloop AScoreNordloop AS operates the Sirken Larvik hub at Hegdalringen 25, 3261 Larvik. Partnership enables Sirken to expand into Vestfold region with local operational expertise. Viktor Sommer Clewemar also involved in local hub management.
- R. Kjeldsberg ASminorR. Kjeldsberg AS is a construction company that used Sirken to sell surplus sandwich elements (9.4 tonnes) before demolition. The transaction avoided 167,038 kr in waste costs and prevented 29 tonnes CO₂e emissions. This case study demonstrates B2B seller acquisition model.
Scale indicators6 records
Recent moves8 records
Expansion highlights5 records
Sirken competitors and assessment
Company assessmentDirect peers
- Back Market: French-headquartered recommerce marketplace that grades and refurbishes used electronics before resale with quality guarantees and B2B offerings. Closest business-model analog: branded recommerce marketplace with inspection-driven quality assurance and circular-economy positioning.
- Chairish: US online marketplace for pre-owned furniture, art, and architectural salvage with curated listings and quality vetting. Directly comparable to Sirken's quality-assured marketplace for used building materials and fixtures.
- CycleUp: US-based marketplace for recovered and surplus building materials from construction and demolition projects. Direct competitor in the same circular-construction-materials niche with similar seller-acquisition model.
- Vinted: Lithuanian-headquartered recommerce marketplace operating across Europe. Comparable as a European circular-economy marketplace with strong consumer brand and category expansion playbook.
- Renowise: European circular construction-materials platform focused on reuse marketplace and material passports. Most direct vertical peer to Sirken in the circular building materials category.
Broad incumbents
- Finn.no: Norway's dominant general-purpose classifieds marketplace covering used goods, real estate, vehicles, and jobs. Incumbent peer as the default Norwegian online destination for second-hand transactions including building materials.
- Byggmakker: Largest Norwegian building-supply retail chain with national branch network and B2B trade accounts. Comparable as the incumbent B2B/B2C building-materials distribution channel that Sirken targets; Byggmakker Leangen is already partnered with a Sirken hub.
- Maxbo: Major Norwegian building-supply retailer with national presence and professional contractor accounts. Incumbent channel for both consumer and B2B building materials that Sirken's marketplace must win spend from.
Emerging players
- Material Bank: US-based B2B marketplace and sampling platform for architectural and building materials. Comparable as an emerging B2B platform reshaping how building products are sourced by professionals.
Others
- Norsk Gjenvinning: Norway's largest waste-management and recycling company handling construction and demolition materials. Comparable as a circular-economy infrastructure provider adjacent to Sirken's reuse flow, with potential to vertically integrate into reuse marketplaces.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key highlights7 records
Customer concentration
Sirken social profiles
Digital presenceSirken financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sirken leadership team
Management profileNumber of profiles
Sirken funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sirken 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 Sirken
What does Sirken do?
Sirken operates a Norwegian digital marketplace for used and surplus building materials, supported by a network of physical hub warehouses. Sellers list surplus construction materials; buyers browse online, pay via Vipps (consumers) or invoice (businesses), and collect from a nearby Sirken hub within six days. All hub-held items are inspected and graded into five condition categories before sale, and the company tracks CO2 savings per product for sustainability reporting.
Is Sirken a public or private company?
Sirken is a private company. It is classified as unknown and is currently operating.
When was Sirken founded?
Sirken was founded in 2020. It employs 1 to 10 people.
Where is Sirken based?
Sirken is headquartered in Trondheim, Norway, in the Europe region.
How does Sirken make money?
One revenue line is on record: marketplace Transaction Fees.
Who are Sirken's main competitors?
Direct peers on record are Back Market, Chairish, CycleUp, Vinted and Renowise. Broad incumbents are Finn.no, Byggmakker and Maxbo. Material Bank is listed as an emerging player. Norsk Gjenvinning is listed as an others.
Does Sirken have an API?
No public API is recorded for Sirken.
What industry is Sirken in?
Sirken's product category is Reused & Surplus Building Materials Marketplace. Its primary akta.pro industry code is CRAFAHAA, Industrial Supplies & MRO Marketplaces. Its NAICS code is 423810 and its SIC code is 5082.