I used to think “carbon tracking” was something only big companies did. Like, the kind with sustainability teams and quarterly reports and a person whose whole job is spreadsheets.
Then I actually looked at where my business emissions were coming from.
It was not mysterious. It was mostly electricity. And cloud usage. And a handful of subscriptions and vendors.
The problem was not the math. The problem was the process. Chasing down bills, converting kWh, guessing emissions factors, exporting CSVs that don’t match. That kind of headache.
So this is a simple angle that works for most small and mid sized businesses:
Connect tools directly to the stuff you already pay for. Your electricity account. Your cloud bill. Sometimes your accounting system. And let the tool translate that into a “Green Score” or carbon metric you can actually monitor month to month.
Below are 3 tools that keep it pretty simple. They are not perfect. None are. But they are the closest thing I have found to “set it up once and stop thinking about it every week.”
What I mean by “Green Score” (and what you should expect)
Different apps label it differently.
Some show actual emissions numbers, like tCO2e per month. Some show intensity, like emissions per employee, per dollar revenue, per workspace. Some wrap it into a single score, basically a dashboard number that goes up or down based on your usage.
That score is only useful if two things are true:
- It is based on real activity data, not guesses. So, actual bills and actual usage.
- It updates regularly, so you can see trends. Not a once a year snapshot.
Also, quick note. If your business footprint includes fleet vehicles, manufacturing, heavy logistics, or a complicated supply chain, these tools can still help. But they will not be the whole answer. This list is more for the common reality: offices, remote teams, SaaS products, cloud hosting, and electricity.
Alright. Tools.
1. Watershed
Watershed is one of the most well known platforms in the carbon accounting space, but what I like is how much of it is built around integrations and ongoing tracking, not just a one time report.
If your business spends meaningful money on cloud, this is where it starts to make sense.
What it connects to
Watershed is built to pull data from systems businesses already use. The exact integration list can change over time, but generally you will see connections in these buckets:
- Cloud providers and data platforms
- Utility and energy data sources (direct or via partners, depending on region)
- Financial systems, expense data, procurement
The point is. You do not have to manually recreate your footprint from scratch every month. The app is trying to become the place where your activity data flows in.
The “Green Score” angle
Watershed is usually more emissions first than score first. You get real carbon accounting outputs, dashboards, and reductions planning. But practically, teams end up using it like a score anyway. Because you watch the number. It is your baseline, then it becomes your monthly trend.
If you are looking for a clean “how are we doing this month?” view, Watershed tends to deliver that once integrations are set.
Who it is best for
- SaaS companies with meaningful cloud spend
- Companies that want something that can grow with them, not a lightweight calculator they will outgrow in 6 months
- Teams that might need reporting credibility later (investors, customers, audits)
The catch
This is not the cheapest or simplest tool on the list, depending on your size. It is more “platform” than “app.” Setup is still easier than spreadsheets, but it is not a five minute toy either.
If you are tiny, you might feel like you are buying a bit more machine than you need.
2. Persefoni
Persefoni is another serious carbon accounting tool, and it has a reputation for being built with standards and reporting in mind. But it is also one of the better options if you want to connect systems and get repeatable tracking without turning your business into a carbon project.
What it connects to
Persefoni’s approach is structured. It is designed to ingest operational and financial activity data and map it into emissions categories.
Depending on your plan and region, you can usually connect things like:
- Energy and utility related data sources
- Business spend and vendor information via accounting or ERP style systems
- Other operational datasets that represent activity
So again, the goal is the same. Don’t hand type numbers. Let the app ingest what already exists.
The “Green Score” angle
Persefoni is also emissions first, but it gives you a consistent framework. That matters because a “score” is only meaningful if it is comparable over time. Persefoni is geared toward that.
I also like that it tends to push you toward clean categorization. It is less of a casual “here’s a score, trust us,” and more of a “here’s how the number is built.”
Which, honestly, is what you want if you ever need to explain it to a customer.
Who it is best for
- Companies that want a more standards aligned approach
- Businesses that expect customer questionnaires about ESG or emissions
- Teams that want repeatability and auditability, not vibes
The catch
You will spend a little time on data hygiene. Not in a painful way, but you do need to map categories, confirm sources, and make sure it is pulling the right stuff.
If you want pure simplicity, the next tool is more in that lane.
3. Tanso (especially if you want simple, modern, and connected)
Tanso is more Europe focused in terms of its market presence, but it is worth mentioning because it aims for that modern “plug in your data, get a dashboard” feel. It is positioned around helping companies measure and reduce emissions without requiring a big internal sustainability team.
If your main need is a clean workflow and you want something that feels like a modern business app, this is the vibe.
What it connects to
Tanso is designed to pull from business data sources that represent real activity. That can include energy usage, purchasing data, and operational info. Like the others, it is not about you building a carbon model in a spreadsheet. It is about connecting what already exists in your business systems.
And if your electricity data is messy, different office locations, different formats, different languages, these platforms often earn their keep just by normalizing it.
The “Green Score” angle
Tanso’s UI and product direction tends to be more “dashboard friendly,” which is what a lot of small teams actually want.
Not everyone wants a 60 page report. Most people want a number that updates, and a few levers to pull, and a way to show progress.
So, while the underlying calculation is emissions, you can treat it like a score for internal accountability.
Who it is best for
- Teams that want a smoother product experience and less consulting energy
- Companies that mainly need electricity, cloud, and spend based tracking to start
- Businesses that want to move quickly, get a baseline, then iterate
The catch
If you are in a region where certain integrations or utility connections are limited, you might need to import some data manually at first. Not forever. But sometimes the first month involves a CSV.
Still, even that is better than living in spreadsheet land.
How to pick between them (in plain terms)
If you are not sure, here is the simplest way to decide:
If cloud is your big footprint
Pick a tool that does cloud and does it well. Watershed is often strong here, and it is built for companies that expect to track this continuously.
If you care about reporting rigor and standards
Persefoni is a safe bet. It is built for structured carbon accounting and tends to be easier to defend when someone asks, “how did you calculate this?”
If you want something that feels like a simple app and gets you moving fast
Tanso is a good direction. Especially if you want a clean dashboard and a modern workflow.
And if you are thinking, “Do I need all this? I just want a Green Score.”
That is fair. But here is the thing. The minute a customer, partner, or investor asks you for details, a pure score without traceable inputs becomes stressful. So I like tools that can give you a score like dashboard while still being grounded in real data sources.
A quick setup checklist so this stays headache free
This is the part most people skip, then they blame the tool.
- Start with one boundary. Just electricity plus cloud, for the first pass. Don’t boil the ocean.
- Connect the cleanest data source first. Usually your main utility account and your primary cloud provider.
- Track monthly, not daily. Monthly is enough to see progress without obsessing.
- Pick one internal metric. Emissions per employee, or per 10k in revenue, something stable. This becomes your real “Green Score.”
- Write down assumptions once. Where the data comes from, what is included, what is excluded. Future you will thank you.
Wrap up
Carbon tracking does not have to feel like homework.
If you connect tools directly to your electricity and cloud spend, you can get a living dashboard. A Green Score you can actually watch. And more importantly, you can make changes and see them show up in the numbers.
My suggestion. Pick one tool, connect two data sources, get your baseline, and stop overthinking it. You can always add more later. That is the whole point.
FAQs (Frequently Asked Questions)
What is carbon tracking and why is it important for small and mid-sized businesses?
Carbon tracking involves monitoring and measuring your business’s greenhouse gas emissions, primarily from electricity, cloud usage, subscriptions, and vendors. It’s important because it helps businesses understand their environmental impact and identify opportunities to reduce emissions, contributing to sustainability efforts.
How can small businesses simplify the process of carbon tracking?
Small businesses can simplify carbon tracking by connecting their existing tools directly to data sources they already pay for, such as electricity accounts, cloud bills, and accounting systems. This approach automates data collection and translates it into a ‘Green Score’ or carbon metric that updates regularly for easy monitoring.
What does a ‘Green Score’ represent in carbon tracking tools?
A ‘Green Score’ is a dashboard metric that reflects your business’s carbon emissions or intensity based on real activity data like actual bills and usage. It can be presented as total emissions (e.g., tCO2e per month), emissions intensity (per employee or revenue), or a composite score that tracks trends over time to help you monitor progress.
Which types of businesses are best suited for using Watershed as a carbon accounting tool?
Watershed is ideal for SaaS companies with significant cloud spending, businesses looking for a scalable platform beyond simple calculators, and teams needing credible reporting for investors, customers, or audits. It integrates with cloud providers, utilities, and financial systems to provide ongoing emissions tracking.
What makes Persefoni a good choice for companies focused on standards and reporting?
Persefoni offers a structured approach aligned with recognized standards, enabling consistent categorization of emissions data. It connects to energy sources, business spend via accounting or ERP systems, and operational datasets. It’s suitable for companies needing repeatable, auditable tracking and those responding to ESG or emissions questionnaires.
How does Tanso cater to businesses seeking simple and modern carbon tracking solutions?
Tanso provides an easy-to-use platform designed especially for European markets that lets companies plug in their data sources and receive clear dashboards without requiring extensive sustainability teams. It emphasizes simplicity, modern workflows, and connected integrations to help measure and reduce emissions efficiently.
