About us

Who are we?

Wasa Dredging works as a marine offshore and inland water construction company operating mainly in Scandinavia and the Baltic region. We are actively striving to access the markets in Europe as well. Our main line of business is capital and maintenance dredging of fairways and harbours. Underwater blasting and dredging of hard material are our specialities.

How we got started

Wasa Dredging was founded in 1985. The company is fully independent and privately owned. The company designs, manufactures and uses its own dredging equipment. With its main equipment dating from 2010 and later, the company offers effective and reliable tools for the job. In 2016, Wasa Dredging generated sales of about 38 million euros.

About us

The organisation has moved from small-scale dredging at summer cottages, small fairways and the likes of that to the big projects in mayor fairway and harbour constructions that it is executing today.


In 2006 Wasa sold all of the equipment. Between the years 2006-2009 there was no activity in the company. In 2009 Wasa started building two brand new pontoons, “Hector” and “Boulder”, along with two new split-barges “Dana II” and “Miika II”. Hector was, at the time, a specialized backhoe dredging pontoon fitted with an EX2500 250 ton Hitachi, it has later been equipped with a drilling tower. Boulder, on the contrary, was originally only a drilling platform but has later been equipped with an EX1200 120 ton excavator. This transformed both pieces of equipment to combination drilling platform/backhoe dredgers which increased their flexibility and allowed them to take on projects including both blasting and dredging single-handily.


This new equipment featured in the first project after the new-start, “Mäntyluoto” in Pori, Finland. This project was executed from 2010-2011, exceeding over 1 million m3 of material dredged and 100 000 m3 in blasting and marked the return of Wasa Dredging in the dredging market.

In 2014 Wasa build their biggest dredger yet, “Optimus”. Optimus was fitted with and EX3600 360 ton Hitachi capable of handling buckets up to 22 m3 and going as deep as 29 meters. Optimus was first taken into service during the Pietarsaari project and proved itself to be a massive increase in the capacity of Wasa Dredging equipment.


In 2017 the first self-propelled barges were built. “Sinann” and “Boann” boasted a hopper volume of 1001 m3 and allowed for faster navigation in rougher weather conditions. The pair was taken into service during the expansion of the Kalundborg Port in Denmark where the distance to the dumping area exceeded 17 km.


In 2018 Wasa bought the “Transport 52” from Secora in Norway. The dredger was later named “Harald”. Harald is equipped with an EX2500 Hitachi, same as Hector. Harald started working during the fall of 2018 in Kokkola, Finland. Harald is scheduled to be modernized and re-built during the winter of 2018 to meet the Wasa standards.


Today the fleet consists of four dredgers, two of them being drilling/backhoe combinations, eight split hopper barges, two of them being self-propelled and a range of auxiliary equipment such as the multi-purpose platform “Kampela”, two barsweeping vessels and five crewtransfer/survey boats.

Our staff consists of experienced professionals


Our staff consists of experienced professionals possessing first-class industry knowledge and skills. Continuous learning and development is a core value at Wasa Dredging. Our personnel receive dedicated HSE training courses at regular intervals.

Experience in demanding  water construction


Our experience in demanding water construction work has been utilized in designing and building our own equipment, the backhoe dredgers “Long John” in 1997, “Attila” in 2003, “Hector” in 2010 and “Optimus” in 2014, 940 m3 split barges “Miika 2” and “Dana 2” built in 2010 and the drill pontoons “Pora 1” in 2003 and “Boulder” in 2010.

Quality system built to cherish our know-how


Carefulness and thoroughness are the foundations of the know-how of our company. Our quality system has been built to cherish our know-how and serve our customer’s needs. The quality of our work is a point of honor to our company. We have also taken very special care of the environmental issues in our field of work. We believe that continuous development of environmentally friendly tools and methods serves us all. Our quality system follows the requirements of the ISO EN 9001 and ISO EN 14001 standards, Wasa Dredging is certified for ISO 9001.

Our customer and partner network is continuously expanding

We are now actively expanding our market to the whole of Europe. Our customers include the former Finnish Maritime Administration (Liikennevirasto), The Maritime administration in Norway called Kystverket, cities, local communities and major building companies. A long term customer relationship in both the public and private sector displays the quality of our work.


By following up and further developing our quality system, we want to ensure quality, environmental sustainability, profitability as well as the satisfaction of our customers. We follow the development within our field, and strive to offer our customers the best know-how and skills in the market. Our personnel receive dedicated HSE training courses at regular intervals.


Kristian Backlund, Managing Director