Being among the greatest threats and challenges of our time, climate change is not a battle of individual industries and countries but is an issue of global nature and requires collective action. The notable rise and increase of knowledge work in recent decades require us to better recognise the effect the field poses on climate.

This study strives to strengthen the understanding of emissions caused by small expert companies and approaches the research problem through a case company, which is a consultancy of few employees. The study accounts for emissions from year 2020 from the company office’s heat and electricity consumption, commuting, procurement of laptops as well as transmission of data. The calculation is carried out in accordance with the Greenhouse Gas Protocol’s Corporate Standard.

Results point out that even though the office the company is using is very small, the emissions from district heat consumption are still of great significance, although emissions from sourced laptops caused the most emissions. Year 2020 was greatly affected by the COVID-19 pandemic and very little commuting took place, but emissions were also assessed for a normal year 2020 scenario, which showed that in a normal year the emissions from commuting would outweigh everything else. Emissions from data transmission pointed out to be negligible.

Emissions of an expert company can be mitigated by sourcing laptops used or at least prolonging their lifetime as long as possible. This can be advanced by purchasing models that are possible to repair and upgrade to maintain the necessary functionality. Furthermore, a company can strive for efficiencies in space utilization and try to get by with an office as small as possible and when needed, rely on shared or flexible spaces. If possible, a company can also take efforts to utilize renewable electricity and incen-tivise employees use of public or light transportation and increase the share of remote work.