
Welcome to Hummeltorp, a family business for three generations
Our family business was founded in 1921 by Torbern Otterström, who at the time manufactured his own very successful topsoil for public sale.
In 1955 Bengt Otterström accelerated and expanded the business to a new level.
In the 1990s, the company also began receiving excavated material for recycling.
2017 Christer Otterström took over. Focused on developing the company,
R & D makes an important part of the success to taking the business to International levels.
100 years of innovation and development
On March 1, 2017, there was a generational change within the Otterström family and the company is now run by son Christer Otterström. Today, the company produces and sells the market's best growing garden and cultivation top soils, plant substrates, aggregates, circular ballast materials and newly developed special products.
Reception of excavated materials has increased, is more nuanced and has a world-leading recycling rate. Hummeltorp strives to be at the forefront of its genre with the greatest focus on recycling all excavated materials 100% and thereby benefiting our nature and future with a natural climate-smart cycle.
But our history goes back even further than that. Join us on our journey!

1920

Torbern Otterström
(Christer's grandfather) a university-educated farmer runs Mörby farm in Haninge. There the foundations for our soil production are laid and new wetlands are created. His values of protecting nature and our soil are passed on to his children and grandchildren.
1934 - 1955
Bengt Otterström
Torbern's eldest son grows up on the farm and graduates from the Swedish University of Agricultural Sciences.
1955
Bengt Otterström founds a company that innovatively
Produces topsoil
before, the topsoil was removed from fields (today prohibited)
1955
1956
Excavation of a bog and recreation of a lake
Peat is used circularly for soil production
1957
OTTERSTRÖMS ÅKERI
(Haulage & Machinery company)
Receives significant assignments in the Stockholm region, e.g.
Brunkebergsåsen (1958)
Årstalänken (1967)
Hallunda (1970)
Norsborg (1972)
Örbyleden (1972)
1959
Streamlining transport
Stockholm's first haulage company to invest in more load-efficient trucks with "Boggie axle"
1972
Mälarturf Gräsmattor
Founded by
Bengt Otterström & Kjell Eriksson.
One of the first in Europe with ready-made lawns on rolls
1973
Hummeltorp
founded by Bengt Otterström.
First in Sweden to harvest the entire peat layer (about 6 yards) for soil production and at the same time reduce greenhouse gas emissions
1979
Recycle horse manure
back to nature's cycle
Collaboration with the horse arenas Solvalla and Täby Race Tracks
1980
Christer Otterström
starts his first company (age 16)
"Crilles Dumpertransporter"
Christer is the third generation in a direct line with an agricultural degree.
The 80s
from the 80s onwards
Christer starts and runs a number of successful companies in various industries and countries, including North America, where the foundation for many of today's international collaborations was laid
1987
Stockholms Last & Transport
(Haulage & Machinery company) was founded by Christer and was run together with, among others, Carina Otterström (sister).
1994
Recycling of surplus materials increases
Materials such as soil, rock, gravel, sand, clay, concrete and asphalt
1997
First machine with Exhaust Emission Control System
(Euro I)
1998
Reception of surplus masses on a larger scale
Projects such as “Södra länken” and the expansion of “Igelstaverken”.
2006
Johannes Otterström
joins the family business and later becomes production manager for soil and gravel
2010
Creation of
Wetland & Recreation Area
Project start for a recreational facility on a former landfill and peat bog
2012
Recycling of rebar
from reinforced concrete
2013
Raising groundwater levels
Successful project with the County Administrative Board to
Raise groundwater levels
in the Pålamalm groundwater reservoir
2014
SCR Exhaust Gas Purification Technology
First machine with
SCR Exhaust Gas Purification Technology
- reduces emissions by 90-95%
(Euro IV)
2015

Christer Otterström
Christer Otterström receives an honorable personal invitation from US Ambassador Mark F. Brzezinski
2016
Christer Otterström
returns to the family business
2016

New office established in World Trade Center, Stockholm
2016
More focused direction and new goals
Updated business model with focus on cost-efficiency, circular economy, environmental safety, recycling rate, CO2 reduction & climate neutrality
2016
Carbon dioxide reduction by 18%
Per ton produced
2016
Recycling rate increases from 16% to 23%
2017

Bengt Otterström died at the age of 83.
He was involved in making business decisions right up until his last
24 hours.
2017
350,000 tonnes of surplus materials
(approx. 29,000 truckloads) are being handled and recycled at the Grödinge facility in phase 1 for a new
“One of a kind" facility
2017
Business starts in Florida, USA
2017
International development cooperation
in North America begins Focus on machine development
2017
New development of machines & methods
for environmentally friendly & circular products regarding road materials
2017
New innovative products for roads
2017
Newly developed technology
Increased incorporation of circular material in asphalt production.
Increases from 25% to over 50%
2017
Hummeltorp Garden
Founded with a focus on organic, food-safe (non-toxic), climate-smart (peat-free) and circular soil products.
Eight new products launched
2017
New, more environmentally efficient excavators
Exhaust gas recirculation (EGR), particulate filter and SCR purification with AdBlue.
2017
Carbon dioxide reduction by an additional 46%
from the previous year
2017
Recycling rate increases from 23% to 55%
2018
New innovative web system
Reduce "boom runs" and reduce negative climate impact
2018
New Joint Venture
Treatment of
Sulphide-bearing Rock
2018

The project "Save the Sand Martin"
which is an endangered species
2018

Completion of
Wetland & Recreation Area
in the former peat bog and landfill.
Activities - water skiing, beach, swimming and horse riding facility
2018

New US Office
One World Trade Center, New York
2018
New environmentally efficient Wheel Loaders
2018
Electrification of the Grödinge facility in collaboration with Vattenfall
2018

Climate-positive topsoil
products are introduced based on biochar
2018

Carbon dioxide reduction by an additional 14%
from the previous year
2018

Recycling rate increases from 55% to 64%
2019

Horse bed to Plant bed
A new service for stables that solves a societal problem and recovers energy
2019

Hummeltorp Evolution
Founded with a focus on the UN's Agenda 2030 goals to develop sustainable climate-smart solutions.
Energy recovery, cleaner aggregates and soil products, reduced climate footprint and reduced consumption of non-renewable natural resources
2019
New Technology Development
Recycling Stumps and Garden Waste
2019
Design of a new main facility Hygienisation / Sanitation facility
2019

New unique technology
Closed & circular leachate and stormwater systems
2019

Carbon dioxide reduction by an additional 29%
from the previous year
2019

Recycling rate increases from 64% to 89%
from the previous year
2020
R&D collaboration with Scania among others
Recycling of metals from foundry sand
2020

Hummeltorp Water
is founded for the development of purification technology for leachate, stormwater and groundwater
2020

Development of LWCS
Leachate Waterproof
Cell System
2020
New products
Circular and Climate- and Environmentally Smart soil products
2020
Hummeltorp becomes Fossil-free
with renewable Biodiesel
2020

Carbon dioxide reduction by an additional 11%
from the previous year
2020

Recycling rate increases from 89% to 96%
2021

Carbon dioxide reduction by an additional 7%
from the previous year
2021

The recycling rate increased slightly further
2021
New technological developments
Hygiene / sanitation of horse manure
2021
New circular and climate-smart soil products
2021

Hummeltorp Water
renamed and now also with the development of purification technology for leachate, stormwater and groundwater with PFAS
2021

International Cooperation
Drinking Water Treatment from PFAS
2022

Carbon dioxide reduction by an additional 1%
from the previous year
2022

The recycling rate was maintained at just over 96%
2022
New technology
120,000 kWh
Clean Green Energy
from horse manure
2022

Hummeltorp Clean Tech
Founded with a focus on R&D of environmental safety, recycling rate, hygienization, biochar and biocompost.
2022
Investment to produce 130,000 kWh of clean green solar energy
2022

AWARDS
In November 2022, we introduced and awarded the Hummeltorp Evolution Awards for the first time.
2023

Carbon dioxide reduction by an additional 6%
from the previous year
2023

The recycling rate increased further
2023
New solar panels being installed
120,000 – 155,000 kWh
Green Renewable
Solar Energy
2023
New technology for storing thermal energy
2023

Increased international cooperation on PFAS cleanup
2023
New Transformer Station
Extended focus on electrification
Now with the possibility of charging stations for trucks
2024

Carbon dioxide reduction by an additional 6%
from the previous year
2024

The recycling rate increased further
2024
New pilot plants
PFAS treatment of stormwater
2024
New 94 acres facility in Greater Stockholm
2024
Development of
New replacement for artificial fertilizer
2024
Expanded focus on electrification with charging stations
GOALS 2025

Further
Reducing carbon emissions
GOALS 2025

Further increase the recycling rate
GOALS 2025
From climate-neutral to climate-positive production
GOALS 2025
Permit & Start-up of Additional New Facility in
Stockholm Region
GOALS 2025
Acquisition of
New facilities in Sweden
GOALS 2025
Acquisitions & Joint Ventures
New facilities in the USA
GOALS 2025
Acquisitions & Joint Ventures
New facilities in Europe
We look forward to the next 100 years
of innovation and development
