Carbon Offset & Carbon-Negative Commitment
Offsetting More.
Reducing More.
Doing More.
We measure our greenhouse gas emissions every year, actively reduce them wherever possible, and offset three times our annual carbon footprint through the United Nations Climate Neutral Now initiative.
203.7
620
3X
177110
(-)

Our approach
Reduce first. Offset second.
Our approach begins with reducing emissions across our own operations. We continually improve energy efficiency, generate renewable electricity through our rooftop solar installation, and make conscious decisions around travel, procurement and day-to-day operations.
For emissions that cannot yet be eliminated, we purchase verified carbon offsets through the United Nations Climate Neutral Now initiative, allowing us to offset three times our annual carbon footprint.
Where our emissions come from
Understanding where emissions originate helps us identify opportunities for improvement. Every year we analyse our emissions across our operations and use the results to guide future sustainability initiatives.
| Category | Tonnes CO₂ | % |
|---|---|---|
| Capital equipment & other purchases | 121.3 | 59.6% |
| Electricity from the grid | 34.6 | 17.0% |
| Office lunches | 21.6 | 10.6% |
| Company vehicles | 15.3 | 7.5% |
| Flights | 8.9 | 4.4% |
| Employee trip to Pollachi | 2.0 | 1.0% |
Reducing our footprint
We take meaningful steps every day to reduce emissions.
Carbon offsetting
Going beyond carbon neutrality
After reducing emissions as much as possible, we offset three times our annual emissions through the United Nations Climate Neutral Now initiative.
203.7
620
Carbon Negative
Annual progress
Tracking our journey towards a more sustainable future.
2020/21
- Emission
- 162.9 t CO₂
- Offset
- 480 t CO₂
- Solar-Generated
- 62,325 kWh
2021/22
- Emission
- 171.4 t CO₂
- Offset
- 557 t CO₂
- Solar-Generated
- 82,740 kWh
2022/23
- Emission
- 185.7 t CO₂
- Offset
- 557 t CO₂
- Solar-Generated
- 82,740 kWh
2023/24
- Emission
- 198.6 t CO₂
- Offset
- 596 t CO₂
- Solar-Generated
- 156,196 kWh
2024/25
- Emission
- 203.7 t CO₂
- Offset
- 620 t CO₂
- Solar-Generated
- 177,110 kWh
Frequently Asked Questions
How do you calculate your carbon footprint?
We measure our greenhouse gas emissions across our operations each year. This includes emissions from areas such as electricity, business travel, company vehicles, office activities, flights, and purchases. We analyse the emissions from each category to identify opportunities for reduction and guide our sustainability initiatives.
How much CO2 did Gislen Software emit in 2024/25?
Gislen Software emitted 203.7 tonnes of CO2 in the 2024/25 accounting year. We track our emissions annually so that we can understand our impact, identify areas for improvement and take action to reduce our footprint.
Why do you offset three times your emissions?
After reducing emissions as much as possible, we offset the remaining impact through the United Nations Climate Neutral Now initiative. We offset three times our annual carbon emissions as part of our commitment to go beyond carbon neutrality and achieve a carbon-negative result.
How is renewable energy used at Gislen Software?
We generate renewable electricity through our rooftop solar installation. During the 2024/25 accounting year, our solar installation generated 177,110 kWh, helping reduce our dependence on grid electricity. We also use lithium battery storage as part of our renewable energy approach.
What does Carbon Negative mean?
Being Carbon Negative means that we remove or offset more carbon than we emit. In 2024/25, Gislen Software measured 203.7 tonnes of CO2 emissions and purchased offsets equivalent to 620 tonnes of CO2, which is three times our annual emissions.
Why does Gislen Software measure emissions every year?
Measuring our emissions annually helps us understand where our environmental impact comes from and identify opportunities to reduce it. It allows us to track our progress over time, make more responsible operational decisions and continuously improve our sustainability efforts.
Sustainability matters
in how we build software too
We integrate sustainability into every client engagement, from developing efficient, long-lasting solutions to following responsible development practices.
Need our sustainability credentials?
If you are evaluating Gislen Software as a supplier, we are pleased to provide our ESG and sustainability information
Follow our sustainability journey.
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