More than 40% of the electrical energy in office environments is used outside working hours. CO2 in buildings has too high a level, which gives sick employees and students who lose 12% of their learning ability. Ventilation is often oversized by 10-20% due to uncertainty about CO2 levels, which have not been adequately investigated and measured. Often, consulting firms offer a measurement over 30 days. The measurements are only a snapshot of the real picture, which does not take into account the season and number of people in the room. VOCs in buildings are more harmful than first thought. VOC combined with too high CO2 can cause allergic reactions and over time develop asthma. The solution for reducing electricity consumption is to use intelligent automation and with behavior control. A sensor can be set up in areas that are used that automatically turn on the light when there is a person present. Several companies offer this solution, but if it is to be used for something, the devices must send data to the central server, after which you can analyze when and how much. The data set provides better management and control. For the CO2 problem, sensors are set up in the premises. The problem with existing sensors on the market is they have to be mounted with cable that is led maybe 100m away to a central box. It is both expensive and often not without surprises, especially for older buildings where drawings are often not updated. Sawux solves several of the mentioned problems. Sawux is a combination of 5 sensors in the same unit that measure and operate wirelessly. The sensors have access to a Cloud server, where data is collected every minute. Then data can be analyzed and given a real picture over time, which forms the basis for the right decision and correct ventilation systems. Sawux fits into existing 230V electrical environment and does not require cabling, boxes, battery or external power supplies. Sawux connects to the Internet via standard WiFi, which is found in all modern buildings. Sawux's solution is very cost effective and user friendly which is able to provide valid data. The Sawux system comes with an app. and web based energy management system, where you can at any time perform analysis of the building completely at the contact level.

We are helping buildings and organizations to increase their air quality while saving energy . We develop plug and play actuators, air quality sensor technologies and software solutions. We provide 360° Energy Management Solution with using own hardware solutions and sensor technologies, measure real time data and combining with thermodynamic analysis by our software platform.

Building the cities of the future. MONTEM develop intelligent infrastructure for different sectors on municipality and national levels. We are specialized in developing research-based, high resolution and low-power sensor networks for digitalizing existing infrastructure. We create the fabric of the intelligent city.

Aguardio helps hotels save water and costs, while improving their sustainability.  In order to save water resources, our goal is to reduce the water consumption during showers. Our mission is simple – to reduce water consumption by supporting, improving and developing sustainable behaviour. Aguardio is located in Resilience House Vejle Nord, which is a triple helix lighthouse house, focusing on resilient solutions within energy, climate, water and data. GO SLOW ON THE H2O

BUG AMOK’s opgave er at vise, hvordan insekter er et velsmagende, sundt og grønt fødevarealternativ gennem udvikling og produktion af innovative færdigretter med insektprotein, samt opskriftudvikling, afvikling af madkurser og foredrag med klimavenlige fødevarer på menuen. Virksomheden har base på iværksætterkontoret ‘The Kitchen’ på Nørrebrogade 44 i Aarhus C. BUG AMOK blev startet i 2017 på baggrund af en lyst til at vise, hvordan vi gennem ændringer af vores madvaner kan gøre en forskel i den grønne omstilling og dermed omsætte verdensmål til konkrete handlingsmål. Vi ønsker at inspirere unge familier til at vælge bæredygtigt insektprotein frem for konventionelt kød og gøre det nemt og tilgængeligt ved at producere attraktive færdigretter.

We`ve been organising Startup Weekends in Copenhagen for 4 years, educating and inspiring hundreds of people to become entrepreneurs. We were lucky to see it from the first row how #CPHSW helped people get into the entrepreneur mindset and to try new challenges. We always believed that one of strongest forces were the network of people you created during those crazy weekends. This is why we created Startup Weekend Mega: The biggest Startup Weekend ever organised in Europe.  We´re an awesome group of volunteers coming from a wide variety of backgrounds. All of us have their own stories about how we ended up joining the #CPHSW family.  We are proud that we`re 100% voluntarily run organisation and that we created a culture where everybody feels safe to experiment and make their own decisions. And we`re always there to support each other outside Startup Weekends.  We think being part of the organiser family is an excellent opportunity to try out craziest ideas in your field. A playground where we can have a lot of fun and learn a ton. After years of experimentation now we`re organising our biggest event, Startup Weekend Mega, and we would like to involve new people on this journey. If this makes you excited then please feel free to reach out copenhagen@startupweekend.org  or directly at the job posts. Fun guaranteed!;)

En vision om grøn mobilitet Bycyklen er den nye generation af transport for den urbane rejsende. Det er verdens første intelligente, elektriske delecykelsystem, som giver brugerne både fleksibilitet, mobilitet og brugervenlighed.   Bycykelsystemet understøtter hovedstadsområdets veludviklede infrastruktur og giver brugerne mulighed for at rejse på tværs af bus, tog og metronetværket. Det kan dermed betegnes som det fjerde ben i hovedstadens offentlige transportsystem.

Providing solutions to the market which increases the utilization of energy. Energy comes at a cost for the consumer and the environment, whereby we owe it to utilize energy in the most efficient way possible. In some processes the input energy is converted efficiently in conceiving the output, whereas other processes utilize high amounts of energy, which eventually is wasted. Sogreeen Powers mission is to reduce the waste of energy by providing solutions which makes processes more efficient. Sogreen Power brings an analytical and technological approach to the table to recover those large or small margins of efficiency when it makes sense as a business case. We break down the problems to identify what can be improved, where know-how and first principles to derive the solutions which are taken from idea to concept, MVP and final solution. We want to contribute to increase the sustainability of the world and socities we live in.

GAIA Express is building sustainable, autonomous VTOL drones designed to replace helicopters in offshore logistics—cutting costs, emissions, and response times. Our long-range ethanol-powered drones operate fully autonomously and can deliver up to 230kg of critical parts, tools, or supplies to ships, rigs, or remote coastal locations across 2400 km. By replacing helicopters—which are costly, carbon-heavy, and logistically inflexible—we provide a cleaner, safer, and far more efficient solution. GAIA Express enables offshore industries to meet urgent needs in within the hour, instead of within hours, while reducing CO₂ emissions by over 95% per delivery compared to traditional helicopters - based on a full lifecycle assesment. Our scalable platform supports everything from spare parts to medical kits, helping the maritime and energy sectors stay operational and sustainable. As a strategy to test and develop smaller drones in order to gain experience with the worlds leading drone developers (Ukrainian companies), we're currently developing drones for the Ukraine.

CETO Innovation is developing a predictive maintenance solution for district heating networks, combining an in-pipe probe with data-driven failure predictions. Our technology enables early detection of pipeline issues, reducing downtime, maintenance costs, and energy waste while optimizing infrastructure management. We are addressing the challenges of aging district heating infrastructure, where reactive maintenance leads to inefficiencies and unexpected failures. By integrating real-time data analysis with in-pipe diagnostics, we aim to provide a smarter, more sustainable approach to pipeline management.

Transporting CO2 Safely at Scale The world needs CCUS* - decarbonICE is enabling transport of CO2 simple, scalable and safe. We are a team who is super exited about CCUS - join us in establishing the most simple and sustainable solution - that will link the emitters of CO2 to storage sites or for utilization projects. *Carbon Capture Utilization and Storage

Casi Technology is a Danish family-owned company based in Taastrup which specialises in metering and allocation of energy costs, with a perpetual aim for energy optimisation and reduction. Vi bruger vores energi, for at spare på din. Casi Technology blev stiftet i 2010. Vi har således mange års erfaring med at montere vand- og varmemålere og lave korrekte, overskuelige fordelingsregnskaber. Vi samarbejder med Qundis som er blandt verdens førende udbydere af professionelt målerteknologi.

GreenWeb. is the first data-driven calculation engine for estimating the climate impact of websites. Using comprehensive data scopes involving website traffic, energy intensity of web data and real-time carbon intensity of the electricity grid, GreenWeb. offers members to climate neutralize their web solutions and actively assist in reducing the footprint of the site.

THE PROBLEM Searching second-hand online requires navigating hundreds of platforms and incomplete listings, forcing shoppers to do the heavy lifting of finding and comparing relevant items. The decentralized and the fragmented second-hand market creates a time-consuming and frustrating experience for shoppers to locate desired items among incomplete listings and outdated platforms. THE SOLUTION Koral aggregates millions of second-hand listings into one searchable platform with categorized, indexed data to create a one-stop solution. This eliminates tedious searches across individual platforms, making shopping second-hand is easier by improving discoverability and streamlining the process of finding desired items online.

We create building materials for modern sustainable and toxic-free buildings combining hundreds of years of knowledge and tradition with modern production- and building techniques. Our aim is to make sustainable building commercially viable. Our first product is Lundby Pladen - a strong and fireproof building board made of unburned clay and woodfiber, designet for classic dry-wall construction. In the sustainable building industry there has been a long anticipation for this product. Unburned clay is the optimal material for inner walls in vapor diffusionon open building techniques as preferred in biobased sustainable building. With a strong and light building board we have solved the problem of unburned clay solutions being either too slow, heavy, fragile or expensive for commercial building. The building industry is responsible for between 17-40% of the worlds Co2 emissions. With Lundby Pladen it will be possible to fireprove biobased buildings with a low-emmission, toxic-free and environmentally harmless high quality material, and thus help making our buildings a genuine Co2-storrage instead of as now, a major Co2 polluter. In the coming years the building industry is facing new environmental laws, and will be increasingly depending on products like Lundby Pladen. We experience a major pull from the marked. Building supply markets, architects, craftsmen, standart house developers and entrepreneurs are waiting impatiently for our product to hit the marked.