S4D Limited

Name

S4D Limited

Legal name

S4d Limited

Website

https://s4dltd.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Mobile Device Distribution

NAICS

Electronic and Precision Equipment Repair and Maintenance (8112)

SIC

Wholesale-Computers & Peripheral Equipment & Software (5045), Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Refurbished, Used & Recommerce Smartphones (CRACALAG)

akta.pro secondary industries

Mobile Device (Smartphone/Tablet) Trade-in & Recycling (BPALAIAG), ITAD, Electronics Recycling & Parts Harvesting Retail (CRACAJAF)

Keywords

• Mobile device distribution
• Refurbished smartphones
• Device refurbishment
• Reverse logistics
• WEEE recycling

Headquarters

HQ city

Newcastle Under Lyme

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Mobile Device Distribution: Sourcing and distribution of new, graded and refurbished smartphones to global business partners including distributors, retailers and network operators. Revenue generated through the markup on device sales.
2. Recycling & Asset Management: Reverse logistics and asset recovery services including device returns, surplus inventory recovery, and redistribution. Also includes recycling of BER (Beyond Economic Repair) handsets, components and WEEE materials.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

S4D Limited is a UK-based mobile device trading company that sources and distributes new, graded, and refurbished smartphones to global business partners including distributors, retailers, and network operators. The company provides end-to-end services spanning global sourcing, quality grading (up to 47-point functional testing), reverse logistics, and Environment Agency accredited recycling of BER handsets, components, and WEEE materials.

Product overview

S4D Limited operates as a UK-based mobile device trading company offering a unified portfolio of services spanning the full device lifecycle. The core offering combines Device Distribution (new, graded, and refurbished smartphones), Global Sourcing (via a global partner network), Quality Control & Grading (with up to 47-point functional testing), Reverse Logistics (returns and surplus recovery), and Recycling & Asset Management (Environment Agency accredited). The company's services are delivered under ISO 9001 (Quality Management) and ISO 27001 (Information Security) certifications, supporting distributors, retailers, and Network partners worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Device Distribution Sourcing and distribution of new, graded, and refurbished mobile devices to global business partners including distributors, retailers, and network operators. Revenue generated through trading margins on device sales.
• Refurbished Handsets Refurbishment and supply of used smartphones involving responsible handling, accurate grading, and quality standards for redistribution to trade partners.
• Quality Control & Grading Pre-distribution device testing covering up to 47 functional checks including battery performance, screen condition, connectivity, camera functionality, and overall device performance, combined with cosmetic grading standards.
• Global Sourcing and Supply Sourcing of high-demand mobile devices from a global partner network to provide consistent stock availability and flexible supply solutions for business partners.
• Reverse Logistics Management of device returns, surplus inventory recovery, and redistribution, working with manufacturers, distributors, and retailers to maximise recovery value.
• Recycling & Asset Management Responsible recycling and asset recovery of new, used, faulty, and surplus smartphones, including BER handsets, components, and WEEE materials, under Environment Agency accredited processes.

Quantifiable outcome

• Up to 47 functional checks per device including battery performance, screen condition, connectivity, and camera functionality

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Decluttr: Recommerce platform that buys and resells used phones, tech, and media. Overlaps with S4D on refurbished mobile sourcing and resale, including B2B trade-in programs.
• Swappie: Europe-focused refurbished smartphone retailer with its own grading and refurbishment operations. Directly comparable to S4D in the graded/refurbished smartphone category and in scale of QA processes.
• CeX: UK high-street retailer that buys, grades, and resells used phones, tablets, and electronics. Comparable to S4D on the refurbished mobile device category and on B2B sourcing of used devices, though CeX sells primarily to end consumers.
• Recellular: Mobile device refurbishment and ITAD provider serving carriers, retailers, and OEMs globally. Direct comparable to S4D on the reverse-logistics, grading, and accredited recycling services spanning the device lifecycle.
• Back Market: Marketplace for refurbished consumer electronics, dominant in smartphones. Comparable to S4D on the core refurbished smartphone category, with a B2B supplier network that overlaps with S4D's distributor and retailer customers.
• MusicMagpie: UK-based recommerce platform that buys, refurbishes, and resells used smartphones and consumer electronics. Closely comparable to S4D on product category (graded/refurbished handsets) and B2B2C distribution model, though operating at much larger scale and with a direct consumer storefront.
• Corporate Mobile Recycling: UK-based B2B provider of mobile device recycling, data wiping, and asset recovery for corporate and public-sector clients. Comparable to S4D on accredited WEEE recycling and reverse logistics, with partial overlap on corporate recycling partners.
• Redeem UK: UK mobile device trade-in, recycling, and refurbishment provider serving carriers and retailers. Comparable to S4D on B2B reverse logistics, recycling accreditation, and refurbished device distribution.
• Envirofone: UK mobile phone recycling and refurbishment brand that buys used handsets and resells refurbished devices. Directly comparable to S4D in the UK refurbished/recycling category, with overlap on consumer and B2B supply channels.

Broad incumbents

• Assurant: Global provider of device protection, trade-in, and lifecycle services to carriers and retailers. Comparable to S4D on the carrier-facing reverse logistics and refurbishment services, but operating at much larger scale and as part of a broader insurance/services portfolio.

Market position

Strengths3 records

Weaknesses3 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/s4d-limited

Compliance3 records

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 S4D Limited