
Greenly
Sumday
Sweep AI
Carbon Ledger
Watershed
SAP Sustainability Performance Management
CarbonSutra
The UK carbon management platform simple enough for in-house teams without the expertise, powerful enough for experts to work smarter without the cost. Scope 1, 2 and 3 measurement with audit-ready SECR, UK SRS, PPN 006 and CSRD reporting.

Agentmemory
Mem0
Stop re-explaining your project to Claude every session. ContextForge adds persistent memory to Claude Code, Cursor, and Copilot via MCP. Free tier, 3-minute setup.

Which is more popular?
Based on our record, ContextForge.dev seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | trackzero.eco | contextforge.dev |
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| Platforms | — | |
| Company | Startup from the United Kingdom · 1 - 9 employees · 2023 | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


TrackZero is the UK-built carbon management platform: simple enough for in-house teams without the expertise, and powerful enough for experts to work smarter without the cost. It helps organisations (from sole traders to international enterprises) measure emissions, engage suppliers, and file...
ContextForge is persistent, searchable memory for AI coding agents — built on the Model Context Protocol (MCP). Your AI assistant forgets everything when the session ends. ContextForge fixes that: save architectural decisions, naming conventions, and debugging context once, and any MCP client...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


No analysis of TrackZero.eco yet.
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As answered by people managing TrackZero.eco and ContextForge.dev.
TrackZero.eco's answer
TrackZero is the UK-built carbon management platform simple enough for in-house teams without the expertise, and powerful enough for experts to work smarter without the cost. Four things set it apart from the crowded field of US and Nordic platforms:
UK-native by design. SECR, UK SRS, PPN 006 and CSRD reporting are built in, not bolted on. Every output maps to a real UK obligation, so finance teams can hand a report straight to their auditor.
Collaborative supply chain engagement. Scope 3 is the hardest part of any inventory. TrackZero turns it into a network effect: your suppliers use the platform to submit primary data on their own footprint and the goods and services they sell you. That data flows into your inventory automatically, replacing spend-based estimates with verifiable primary figures.
You keep the platform, whoever runs it. Use TrackZero yourself or bring in a carbon consultant. If you change consultants, you keep the platform and every year of data in it. .
Priced to stay affordable at any scale. From SMEs producing a first footprint to listed PLCs preparing for external assurance, the pricing works. No enterprise minimums, no consultancy-tier gatekeeping.
ContextForge.dev's answer:
ContextForge is memory that lives at the MCP layer, so it works across every AI coding agent at once — Claude Code, Cursor, GitHub Copilot, ChatGPT, and Windsurf — not just one. Save a decision once and any client recalls it later with semantic search. It goes beyond a note store: automatic git sync turns your commits and PRs into searchable knowledge, plus task tracking, snapshots, and team sharing — all through a single MCP server you add with one command.
TrackZero.eco's answer
Because TrackZero delivers what most carbon platforms only promise: audit-ready numbers without the enterprise price tag, consultancy tie-in or the hidden calculations.
Compared with the big US and Nordic platforms, TrackZero is built for UK regulatory reality first: PPN 006 for public procurement, SECR for large companies, UK SRS for the incoming disclosure standard, and CSRD for UK subsidiaries of European groups. Every calculation is transparent, so auditors review evidence directly in the platform rather than rebuilding numbers.
Compared with free tools, TrackZero adds multi-year tracking with year-specific emission factors, market-based Scope 2, full supplier engagement for primary Scope 3 data, and ISO 27001 certified security.
Compared with the "carbon consultant with a spreadsheet" approach, TrackZero gives you a platform you own. Change consultants without changing tools.
ContextForge.dev's answer:
Most memory tools are tied to a single agent or are just a key-value store. ContextForge is MCP-native, so it's portable across all your AI tools; it adds git sync so your codebase history becomes searchable context automatically; and it includes team features (shared spaces, collaborators) that solo-memory tools lack. Setup is one command, there's a genuine free-forever tier with no credit card, and paid plans start at just $9/month.
TrackZero.eco's answer
TrackZero is built with four different audiences in mind:
SMEs and mid-market UK businesses facing procurement pressure, tender requirements, or investor questions on emissions. Often producing their first proper carbon inventory.
Sustainability, finance and procurement leads at larger UK organisations who need audit-ready reporting for SECR, UK SRS or CSRD without a six-figure consultancy engagement.
Carbon consultants and ESG advisors who run client portfolios and need a platform their clients can also use directly, so the work isn't locked to one relationship.
Public sector suppliers meeting PPN 006 requirements to bid for NHS or central government contracts over £5 million.
Sectors range across construction, engineering, manufacturing, financial services, food and drink, professional services and technology.
ContextForge.dev's answer:
Software developers and engineering teams who use AI coding assistants — Claude Code, Cursor, GitHub Copilot, ChatGPT, Windsurf — and are tired of re-explaining their project, architecture, and conventions every session. It fits solo developers working across multiple projects as well as small teams that need shared, persistent context.
TrackZero.eco's answer
TrackZero was founded in October 2023 by people who had done this before. Alan Wilson (CEO) co-founded MoreTrees, acquired by THG PLC within six months of launch. Alan also co-founded Expandly, acquired by GEE. Oliver Waters (CPO) founded Momento, named Apple's App of the Year Runner-Up in Europe. And, Steven Waterfall (CTO) brought engineering leadership from multiple startups.
The idea came from conversations with sustainability, procurement and supply-chain teams through 2023. The same story kept coming up: enterprises sending carbon questionnaires suppliers didn't understand, consultants too expensive to scale and data too inconsistent to act on. One logistics business had lost a contract because it couldn't answer a carbon questionnaire during procurement. Carbon reporting had turned into a condition of doing business, and no one had built the infrastructure to make it work for both sides.
Cranfield University came in early as strategic advisor, pre-seed investor and eventually a customer through its Ready for Net Zero programme. Their sustainability academics validated the methodology against GHG Protocol standards and DEFRA emission factors before the first enterprise customer signed on.
Development began January 2024. The first commercial version launched in March 2024. Bridgestone Tyres signed early and Volkswagen Group UK followed. Today TrackZero boasts organisations from FTSE-listed manufacturers to sole traders and city councils.
ContextForge.dev's answer:
ContextForge was born from a simple frustration: AI coding agents forget everything the moment a session ends. Every new conversation meant re-explaining the same architecture, naming conventions, and past decisions. ContextForge was built to give AI agents a permanent, searchable memory through the Model Context Protocol — so knowledge is captured once and reused forever, across sessions and projects. It even dogfoods its own memory to help build itself.
TrackZero.eco's answer
TrackZero is built entirely in-house by the Track Zero Labs engineering team, led by CTO Steven Waterfall. Nothing is white-labelled, and no part of the carbon-accounting engine is licensed from another provider.
At the core is our proprietary emissions calculation engine, aligned strictly to GHG Protocol standards. Cranfield University's sustainability academics validated the calculation framework against those standards and against DEFRA emission factors before the first enterprise customer came on board.
The platform is a web-based SaaS running on cloud infrastructure, engineered to ISO 27001 information security standards. Every calculation is fully traceable, so auditors and finance teams can review evidence, methodology and figures directly in the platform rather than rebuilding numbers from scratch.
Building the engine ourselves rather than licensing one gives us three things: full control over how methodology evolves as standards update and the ability to expose the workings to customers and auditors instead of hiding it.
ContextForge.dev's answer:
Next.js 16 (App Router), React and Tailwind CSS for the dashboard, hosted on Vercel. Supabase (PostgreSQL) with pgvector powers the semantic vector search, and Deno edge functions serve the API. Embeddings use OpenAI text-embedding-3-small. The MCP client is a Node.js package (contextforge-mcp) on npm, implementing the Model Context Protocol.
TrackZero.eco's answer
Share your experience with using TrackZero.eco and ContextForge.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking TrackZero.eco since Sep 2026.
Init links the folder to a project, so every agent working in that repo reads and writes the same memory, and it adds the rules that make sessions check who else is live before big changes. For Cursor, Copilot, Claude Desktop and... - Source: dev.to / 16 days ago
I built ContextForge because I was losing this argument with my own agents several times a week. The idea is small: when we decide something, the agent saves the decision with the reason, in the project's memory. The next session, in... - Source: dev.to / about 1 month ago
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