What Zellar does

Zellar is a United Kingdom-based digital sustainability coaching platform, registered as Zellar Ltd in England and Wales with a registered office in Northampton and an operational office in London. The platform is purpose-built to capture Scope 3 emissions from the "long tail" of smaller organisations that supply chain owners — corporates, councils, chambers, LEPs and trade bodies — cannot reach with enterprise ESG tooling. Its three integrated modules, Snapshot, Dashboard and Zellar Coach, collectively turn an SME emissions baseline into an ongoing, network-wide record: Snapshot captures a baseline in minutes via automated energy reads and industry proxies; Dashboard aggregates supplier results into a single live view for the supply chain owner; and Coach guides SMEs through practical reduction and energy-switching actions that yield reusable credentials and cost savings. Backed by APIs to verified energy and data-aggregator sources, the platform also automates compliance reporting under ESG, SECR, PPN 06/21 and CSRD.

Zellar operates a dual go-to-market. Individual SMEs and small businesses can self-serve sign up at app.zellar.com on monthly or annual subscriptions with a 7-day free trial; larger relationships are pursued through "Book a deep dive" sales conversations and partner-funded programmes such as Cheltenham Borough Council's Green Grants, East Midlands Chamber's regional rollout, Charnwood Borough Council's UK Shared Prosperity Fund-backed 12-licence cohort, Greater Birmingham and Solihull LEP's 100-business pilot, Somerset Council's regional scheme, and England Golf's nationwide golf-club programme. The pricing model is recurring subscriptions, with subsidised or free licences funded by council, chamber and corporate partners (e.g. Co-operative Bank's lifetime subsidised access for its UK SME customers).

Financially, Zellar is a private early-stage company. It received £600,000 from The Co-operative Bank in November 2022 in exchange for a 2% equity stake (implying a ~£30m post-money valuation), followed by an undisclosed/mid-six-figure USD-equivalent round on Crowdcube in late 2023. Headcount is reported at 11–50 employees, ownership sits within the Zellar Holdings Limited group, and Gary Styles is Founder and CEO. The company is operating with active product development and partner programme expansion across the UK.

Name

Zellar

Legal name

Zellar Ltd

Website

https://zellar.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Zellar is a UK-based digital sustainability coaching platform that captures Scope 3 emissions from SMEs via Snapshot, Dashboard and Coach modules, and aggregates them into a live supply-chain view for corporates, councils, chambers and trade bodies, with subsidised programme licences sold through partners like The Co-operative Bank and multiple local authorities.

Ownership category

akta.pro rank

Product category

Sustainability Management Software

akta.pro primary industry

ESG/Sustainability Reporting & Disclosure Platforms (EUABAEAB)

akta.pro secondary industries

Audit-Ready Controls, Assurance & Compliance Workflow Tools (CSRD/SEC/ISSB) (EUABAEAG), Supply Chain (Scope 3) Emissions & Supplier Engagement Platforms (EUABAEAE), Sustainability & ESG Reporting (GRI/SASB/ISSB/CSRD) (EUAHAJAB)

Keywords

• Sustainability management software
• Carbon emissions tracking
• ESG reporting platform
• Supply chain emissions
• Scope 3 data capture

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Subscription Licences: Monthly or annual subscription fees payable in advance. Users subscribe to access the full platform including Snapshot, Dashboard, and Coach features. Subscriptions automatically renew each month (monthly plans) or year (annual plans).
2. Partnership / Programme Licences: Supply chain owners (councils, chambers, corporates) purchase or subsidise bulk licences for their SME networks. Co-operative Bank investment of £600,000 included lifetime subsidised access for UK SME customers.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Zellar provides a digital sustainability coaching platform that captures and tracks emissions data from small and medium-sized organisations on behalf of larger supply chain owners. The platform combines Snapshot (a plain-language emissions baseline tool), Dashboard (a network-wide supply chain emissions system of record), and Zellar Coach (an ongoing sustainability coaching module with energy-switching micro-actions) to deliver verified primary emissions data for ESG, SECR, PPN 06/21, and CSRD compliance.

Product overview

Zellar offers a unified digital sustainability coaching platform comprising three integrated components: Snapshot (for capturing emissions baselines quickly), Dashboard (for supply chain owners to monitor network emissions in real-time), and Zellar Coach (for ongoing SME sustainability guidance and improvement). The platform automates emissions data collection, compliance reporting (ESG, SECR, PPN 06/21, CSRD), and provides supplier engagement tools. Single businesses can purchase a standalone Zellar Coach license, while supply chain owners get access to the full Dashboard functionality for network-wide visibility.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Average annual savings for an SME (energy savings + platform-prompted micro actions)
• +3 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Six partnerships are on record, tiered core and secondary.

• Cheltenham Borough CouncilcoreStrategic or Co-development PartnerCheltenham Borough Council ran a Green Grants programme powered by Zellar. Zellar helped businesses cut emissions and provided clear, verified evidence of their actions — making it easier for the Council to review grant applications and track impact across the town. Programme saved £101,830 across participating businesses with 08 tonnes of CO2 reduced.
• East Midlands ChambercoreStrategic or Co-development PartnerEast Midlands Chamber used Zellar to run a smarter, greener sustainability programme for its business network across the East Midlands. The programme saved £120,180 and 127 tonnes of CO2 across participating businesses, with Zellar connecting programme owners and participants to deliver measurable savings and verified emissions data.
• England GolfsecondaryStrategic or Co-development PartnerEngland Golf partnered with Zellar to help golf clubs across England cut carbon, reduce costs, and take meaningful climate action — while giving England Golf consistent, nationwide data to guide the sport toward a net-zero future. Luffenham Heath Golf Club is a case study participant.
• Charnwood Borough CouncilcoreStrategic or Co-development PartnerCharnwood Borough Council invested in Zellar via the UK Shared Prosperity Fund, securing 12 Zellar licences for a two-year period for local SMEs. The Council invited members of its small business community to apply for free access to the Zellar platform as part of the 'Get Zero, Get Zellar' programme. Councillor Jennifer Tillotson endorsed the partnership.
• Greater Birmingham and Solihull LEPcoreStrategic or Co-development PartnerGreater Birmingham and Solihull LEP completed a Zellar Pilot scheme offering 100 businesses in the region 1-year free access to the Zellar platform, getting them started on their sustainability journey. The scheme overall brought savings to the region equal to 45t CO2e. Regional Net Zero Projects Officer Serena Bacuzzi endorsed the programme.
• Somerset CouncilsecondaryStrategic or Co-development PartnerSomerset Council partnered with Zellar to empower public services and drive sustainability across the region, as announced through a Zellar blog post.

Scale indicators6 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Watershed: Enterprise climate platform covering carbon accounting and supply chain emissions. Zellar competes specifically for the supply chain Scope 3 use case, with Zellar positioned as the SME-friendly engagement layer that complements rather than replaces Watershed-class enterprise tools.
• Persefoni: Climate management and accounting platform for enterprises. Both firms target regulated corporates needing CSRD/SECR-grade reporting, but Zellar differentiates by focusing on the SME long tail and supply chain data capture that Persefoni's enterprise UI does not serve.
• Sweep: Sustainability and carbon management platform for mid-market and enterprise. Overlaps with Zellar on Scope 3 supplier engagement and emissions dashboards, with Zellar positioned as the lighter-weight, SME-first complement.
• Greenly: Carbon accounting platform aimed primarily at SMEs and mid-market. Greenly is the closest direct competitor to Zellar on the SME carbon-accounting use case, although Zellar's council/LEP distribution and supply chain dashboard are points of differentiation.
• Deed: Sustainability platform for SMEs offering carbon footprinting and climate action plans. Directly comparable to Zellar's Coach and Snapshot products, with a similar SME-first design ethos.

Emerging players

• Emitwise: Carbon accounting software focused on enterprise supply chain emissions. Partial overlap with Zellar on Scope 3 data capture, though Emitwise is more enterprise-anchored and less oriented to the SME long tail.
• Net0: Carbon management and reduction platform for businesses. Comparable in the SME/mid-market sustainability tooling space, with overlapping emissions-measurement and reduction-coaching features.
• Coolset: Sustainability platform for SMBs covering carbon accounting and CSRD reporting. Direct SME-tier competitor to Zellar, particularly on the European regulatory reporting use case.

Broad incumbents

• Workiva: Broad ESG disclosure and reporting platform serving large enterprises. Comparable to Zellar on the regulatory reporting side (CSRD, SECR, ISSB), but Workiva targets enterprise sustainability teams rather than the SME engagement layer.
• Sage Earth: Sustainability module from Sage aimed at SMB accounting customers. Direct overlap with Zellar on the UK SME carbon-accounting use case, with the structural advantage of Sage's installed accounting-software base.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/zellarUK
• LinkedInlinkedin.com/company/zellar
• Instagraminstagram.com/zellaruk

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds2 records

Investors2 records

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 Zellar