- Credit score:
- Reliable
- Reputation score:
- 43,600
- Employees:
- 256
- Forecast turnover (2026):
- 102,512,604 €
Durable, economical and smart solutions!
TREV-2 Group is a company focused on the construction and maintenance of infrastructure objects and facilities.
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construction research
-
building
-
construction
-
construction work
-
sanitation
-
sewer system
-
construction of roads
-
road construction
-
maintenance of public roads
-
audit of construction works
-
expert assessment of building design documentation
-
construction of gas installation
-
making of traffic management projects
-
pressure equipment works
-
construction of roads and bridges
-
tea care
-
environmental construction
-
mining of mineral resources
-
traffic management
-
road project management
-
project management of bridges
-
production and installation of asphalt
-
building equipment rental
-
car wash service
-
design
-
maintenance
-
repair work
-
repair
-
rebuilding
-
the warehouse
- Credit score:
- Reliable
- Reputation score:
- 34,720
- Employees:
- 280
- Forecast turnover (2026):
- 34,463,953 €
Where others see an end, we see a new beginning!
Ragn-Sells was the first privately owned waste handler to bring modern garbage trucks with it and to use exchangeable containers for the first time.
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sewer cleaning
-
transport of construction waste
-
transport of construction debris
-
building for a protection prah
-
water for establishment
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deep tanks
-
sale and rental of garbage containers
-
organised waste transport
-
packaging bag
-
big-bag bag
-
waste reports
-
clogging and pressure washing of trails
-
destruction of goods
-
dangerously simple
-
destruction of documents
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dry grass or himur imur
-
sorting solutions for offices
-
industrial cleaning
-
cleaning contaminated soil
-
hazardous waste
-
medical waste
-
solutions for large-scale builders
-
solutions for small builders
-
administration of trade
-
himur imur
-
document disease
-
corrected disease
-
sale and rent of prugiconteiners
-
substances
-
collection of common waste
- Credit score:
- Reliable
- Reputation score:
- 15,490
- Employees:
- 38
- Forecast turnover (2026):
- 17,468,702 €
Water supply and sewage works
We have built outdoor networks both within the boundaries of a private owner's property and on city streets and other public lands. We also offer external network design services.
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construction
-
construction
-
sewer accessories
-
sewer construction
-
construction of sewer lines
-
construction and real estate
-
construction and real estate services
-
building construction firms
-
energy and mineral resources
-
heating
-
heating solutions
-
mineral resources and natural resources
-
equipment and machinery
-
general and home services
-
trackwork
-
logistics
-
internal networks
-
customers
-
sanitation
-
installation
-
solutions
-
buildings
-
apartment buildings
-
shopping centres
-
private houses
-
office buildings
-
heating systems construction
-
objects
-
hotels
-
water pipeline installation
- Credit score:
- Reliable
- Reputation score:
- 12,690
- Employees:
- 42
- Forecast turnover (2026):
- 11,519,884 €
Steam and air supply in Võru
heating network, Energy, energy and mineral resources, Construction and maintenance of energy systems, boiler houses, heating, Equipment and machinery, Electricity, heating, solar and nuclear energy, Local heating, Pipelines
-
construction and real estate
-
construction and maintenance of energy systems
-
heating
-
energy
-
energy and mineral resources
-
boiler houses
-
equipment and machinery
-
distribution of heat
-
sale of heat
-
heat production
-
chemical washing of heat exchangers
-
balancing of central heating systems
-
sale and installation of heat meters
-
installation and repair of thermal assemblies
-
sale of thermal assemblies
-
maintenance of thermal assemblies (single or long-term maintenance contract)
-
installation and repair of heating systems
-
washing of heating systems (pipes, heaters, boilers)
-
power
-
renewable energy
-
heating network
-
steam and air supply
- Credit score:
- Reliable
- Reputation score:
- 11,600
- Employees:
- 16
- Forecast turnover (2026):
- 1,910,412 €
Sewerage
Motor vehicles, closing and opening of water connections, discharge of tanks, channel washing with pressure washer, sewage treatment plant, water pumping, groundwater treatment, groundwater, Mechanical buckets, excavators and paddock loaders and mining machinery, energy and mineral resources
- Credit score:
- Reliable
- Reputation score:
- 10,820
- Employees:
- 4
- Forecast turnover (2026):
- 24,752,862 €
Building Dreams, Designing Futures!
We specialize in the reconstruction of apartment buildings and the creation of luxurious penthouses.
-
site construction
-
design and construction work with site construction
-
building
-
construction
-
construction firm
-
sanitation
-
construction work
-
reconstruction of apartment buildings
-
penthouses
-
design
-
development projects
-
product development
-
property development projects
-
construction project management
-
building design services
-
building services estonia
-
real estate development estonia
-
apartment building reconstruction
-
penthouses design
-
product development in construction
-
residential design and development
-
community building renovation
-
real estate project planning
-
real estate innovation
-
urban development projects
-
development of roof floors
-
preliminary work
-
design and construction
-
final formulation
-
design and construction work with wooden element
- Credit score:
- Reliable
- Reputation score:
- 10,730
- Employees:
- 30
- Forecast turnover (2026):
- 21,809,327 €
Building construction works
authentication, Construction, Construction, Solutions for apartment associations, Complex renovation service, Insulation and finishing of external borders, Kredex Supported Projects, Warehouse and production buildings, Private houses and terraced houses, pharmaceutical compositions for renovation
-
construction and real estate
-
construction
-
construction
-
construction work
-
sanitation
-
construction firm
-
solutions for apartment associations
-
complex renovation service
-
insulation and finishing of external borders
-
kredex supported projects
-
warehouse and production buildings
-
private houses and terraced houses
-
pharmaceutical compositions for renovation
-
improving energy efficiency
-
energy-saving facades
-
insulation and plastering
-
replacement of opening fillers (windows and doors)
-
reconstruction of heating system
-
renovation of water and sewerage
-
renovation of ventilation systems
-
insulation and finishing of the building's external borders
-
insulation/finishing of external borders
-
plastering of facades
-
insulation of facades
-
insulation of flat roofs
-
additional work on facades
-
apartment, housing associations
-
comprehensive renovation
-
energy-saving solutions
-
full service under the general contract procedure
- Credit score:
- Reliable
- Reputation score:
- 10,570
- Employees:
- 75
- Forecast turnover (2026):
- 12,964,044 €
Construction of sewer lines
Construction, Maintenance of public roads, Expert assessment of building design documentation, Construction research, pipework construction, road construction, Owner supervision, Water pipelines, sewer pipes, construction of connection points
-
construction
-
road construction
-
sewer pipes
-
construction and repair of internal water and sewerage pipelines
-
construction of sewer lines
-
maintenance of public roads
-
expert assessment of building design documentation
-
construction research
-
pipework construction
-
owner supervision
-
water pipelines
-
construction of connection points
-
construction of mains pipelines and renovation eggs
-
road construction (base construction, stonework, asphalting) and renovation
-
establishment of sites and car parks
-
road cover restoration work
-
completion of asphalt work in summer and winter with preparation
-
establishment of landscaping
-
consultations (e.g. expert assessments of construction projects, engineering solutions, etc.)
-
pressurisation of external races
-
elimination of sewerage blockages
-
cleansing fat catchers
-
cleaning sand trappers
-
repair of wells
-
pressure washing
-
rinsing and disinfection of drinking water piping
-
stormwater pipelines
-
emergency work of water and sewerage pipelines
-
pressure washing of sewerage pipes and wells
-
ice pigging
- Credit score:
- Reliable
- Reputation score:
- 8,310
- Employees:
- 45
- Forecast turnover (2026):
- 1,909,396 €
Installation of sanitary equipment
sanitation, heat pumps installation, water supply and sanitation works, Design, Installation, Design and installation, private houses, santechnical works, sprinkler, sewer works
-
construction
-
design, construction and maintenance of fire safety
-
sanitation
-
sewer works
-
fire safety
-
cooling and air conditioning systems, heat pumps
-
inspection and maintenance
-
complete solutions of the outer shell of the building
-
outsourcing
-
metal cladding
-
ventilation work
-
installation of heat pumps and air conditioners
-
sprinkler and firefighting
-
water supply and sanitation works
-
systems design
-
heat pumps installation
-
water supply and sanitation works
-
design
-
installation
-
design and installation
-
private houses
-
tallinn
-
maintenance
-
santechnical works
-
sprinkler
-
installation of sanitary equipment
- Credit score:
- Reliable
- Reputation score:
- 7,350
- Employees:
- 34
- Forecast turnover (2026):
- 4,578,202 €
Installation of electrical equipment
electrical installations construction, internal electrical installations, substations, cable lines, preventive care, additional care, modernisation, correctional care, maintenance of high voltage substations, Energy
-
heating
-
internal electrical construction
-
external electrical construction
-
owner supervision
-
electrical installations construction
-
energy
-
energy and mineral resources
-
sf6 gas handling
-
electrical works
-
maintenance of high voltage substations
-
correctional care
-
modernisation
-
additional care
-
preventive care
-
cable lines
-
substations
-
internal electrical installations
-
installation of electrical equipment
- Credit score:
- Reliable
- Reputation score:
- 6,910
- Employees:
- 47
- Forecast turnover (2026):
- 3,752,977 €
Land improvement works
demolition services, inspection of water bodies, treatment of waste, Building, Construction, Construction work, Installation, water tank, road and site construction work, construction of sewerage lines
-
road construction
-
external sewerage construction
-
construction of water and sewerage lines
-
sanitation services
-
building
-
construction
-
construction work
-
construction of sewerage lines
-
forest drainage
-
earth and excavation works
-
soil work services
-
land improvement
-
forest harvesting
-
repair of roads
-
production of peat
-
water services
-
exhaust control
-
exhaust analysis
-
inspection of water bodies
-
treatment of waste
-
installation
-
demolition services
-
repair
-
fragmentation construction
-
road and site construction work
-
water tank
-
earthworks services
-
land improvement works
- Credit score:
- Reliable
- Reputation score:
- 6,690
- Employees:
- 32
- Forecast turnover (2026):
- 3,245,379 €
Building construction works
regular maintenance, air conditioning systems, Technical systems, Ventilation work, system planning, installation of the system, cooling systems, Tallinn, Tartu, cooling and air conditioning systems, heat pumps
-
construction and real estate
-
heating
-
construction
-
construction
-
building construction works
-
energy and mineral resources
-
commercial equipment and consumables
-
air conditioning units
-
heating solutions
-
equipment and machinery
-
cooling and air conditioning systems, heat pumps
-
air conditioning systems
-
technical systems
-
ventilation work
-
system planning
-
installation of the system
-
regular maintenance
-
repair work
-
cooling
-
cooling systems
-
tartu
-
tallinn
- Credit score:
- Reliable
- Reputation score:
- 6,220
- Employees:
- 15
- Forecast turnover (2026):
- 5,476,770 €
Installation of air conditioning systems
Boilers, energy and mineral resources, heating, heating solutions, Equipment and machinery, Construction, Construction, Construction of gas installation, gas works, cooling and air conditioning systems, heat pumps
-
heating
-
construction
-
construction
-
construction of gas installation
-
boilers
-
energy and mineral resources
-
heating solutions
-
equipment and machinery
-
gas works
-
cooling and air conditioning systems, heat pumps
-
if your home is your fortress, the barn-nord will make your home a 21st century fortress. we offer the widest range of modern heat pumps (soil heat pumps, air-water heat pumps).
-
need a heating or cooling solution for a larger project than a private house? no problem, the barn-nord has the necessary technical know-how and experience.
-
after-service of heat pumps
-
ground source heat pumps
-
air to water heat pumps
-
accessories
-
entrust the supervision of your heating systems to experts. we have a corresponding cold work license and our specialists regularly attend factory-side training.
-
modern equipment
-
cooling solutions
-
heating solutions
-
indoor climate
-
heat pump
-
tallinn
-
tartu
-
heat pumps
-
training
-
consultation and advisory
-
collectors
-
follow-up service
-
alpha innotec heat pumps
- Credit score:
- Reliable
- Reputation score:
- 5,500
- Employees:
- 28
- Forecast turnover (2026):
- 3,322,818 €
Installation of electrical equipment
Repair of electric motors, construction machinery and tools, expert assessments, electrical equipment, Energy, energy and mineral resources, heating, Laboratories, machinery and tools, Measuring equipment and work
-
construction and real estate
-
construction machinery and tools
-
heating
-
street lighting construction and maintenance
-
expert assessments
-
electrical equipment
-
energy
-
energy and mineral resources
-
laboratories
-
machinery and tools
-
measuring equipment and work
-
state and society
-
communication
-
means of communication and supplies
-
research institutions
-
outdoor lighting
-
general and home services
-
device work
-
conformity assessment body
-
electrical works
-
connection of equipment
-
automation
-
comprehensive technical solutions
-
electric laboratory
-
electrical tests
-
installation of electrical networks
-
high-safety work
-
repair and maintenance of substations
-
integrated solutions
-
tech support
- Credit score:
- Reliable
- Reputation score:
- 5,300
- Employees:
- 13
- Forecast turnover (2026):
- 2,452,187 €
Wholesale of water and heating equipment
repair services, cooling and air conditioning, construction work, remote tracking, heating systems, heating solutions, floor and radiator heating, heat pumps, energy calculations, ventilation solutions
-
construction and real estate
-
heating
-
construction
-
construction
-
construction work
-
energy and mineral resources
-
heating solutions
-
equipment and machinery
-
cooling and air conditioning systems, heat pumps
-
consultations
-
repair services
-
ventilation solutions
-
energy calculations
-
heat pumps
-
floor and radiator heating
-
heating solutions
-
heating systems
-
remote tracking
-
cooling and air conditioning
-
wholesale of water and heating equipment
- Credit score:
- Reliable
- Reputation score:
- 4,990
- Employees:
- 7
- Forecast turnover (2026):
- 3,284,923 €
Pipeline and heating installation
ventilation, bosch climate engineering, City Climate, heating solution, balancing the heating system, ground heat, ground source heat pump, Smart Management, solar heating, underfloor heating
-
sewerage
-
sanitation
-
ventilation
-
bosch climate engineering
-
city climate
-
heating solution
-
balancing the heating system
-
ground heat
-
ground source heat pump
-
smart management
-
solar heating
-
underfloor heating
-
the heat center
-
heat pump maintenance
-
thermia
-
air to air heat pump
-
heat pumps
-
air to water heat pump
-
installation
-
floor pouring
-
excavation work
-
question
-
ground source heat pumps
-
radiator heating
-
cooling
-
indoor climate
-
warm node
-
heating system installation
-
heat
-
heat pump
- Credit score:
- Reliable
- Reputation score:
- 4,970
- Employees:
- 7
- Forecast turnover (2026):
- 1,950,835 €
Retail sale of other goods
greases and consumer chemistry, building and finishing materials, construction machinery and tools, energy and mineral resources, Interior, Welding, heating, machinery and tools, Pneumatic equipment, Pneumatic equipment
-
construction and real estate
-
construction machinery and tools
-
heating
-
construction
-
construction
-
building and finishing materials
-
energy and mineral resources
-
interior
-
welding
-
machinery and tools
-
pneumatic equipment
-
pneumatic equipment
-
equipment
-
equipment and machinery
-
technological lines
-
technological equipment
-
compressed air accessories
-
lubricants and consumer chemistry
-
oil equipment
-
hose drums
-
compressed air dryers
-
compressed air tools
-
electrical hand tools
-
pressure sprays and accessories
-
car wash supplies
-
pressure washers
-
heat blowers
-
tools
-
pistols
-
generators
- Credit score:
- Borderline
- Reputation score:
- 4,830
- Employees:
- 19
- Forecast turnover (2026):
- 4,683,469 €
Construction and Maintenance You Can Always Rely On
The main activities of our company are the repair and maintenance of technological equipment, the production of metal structures, and assembly services. We provide services in both industrial and energy solutions, being your reliable partner in the field of repair and construction.
-
construction
-
construction
-
construction of communication and electrical networks
-
installation of water pipelines and sewer networks
-
construction and assembly
-
automated control systems
-
metal industry
-
technological lines
-
technological equipment
-
device work
-
machinework
-
pressure equipment works
-
welding work
-
metal structures
-
production of pressure tanks
-
rent of labour
-
maintenance of technological equipment
-
repair services for industrial machinery
-
maintenance of refractory structures
-
repair readiness of critical equipment
-
making metal frames
-
welding work and locksmith assembly work
-
production and installation of pressure tanks
-
painting and finishing works
-
lifting services and assembly
-
project management services
-
design and development
-
production and painting
-
manufacture of metal structures
- Credit score:
- Reliable
- Reputation score:
- 4,470
- Employees:
- 16
- Forecast turnover (2026):
- 2,181,834 €
Cleaner Communities, Greener Futures
We specialize in the transport of waste, waste management, and a variety of general and home services, including the elimination of sewerage blockages, cleaning of fat and sand trappers, and maintenance of water supply and sewers.
-
elimination of sewerage blockages
-
sewer maintenance
-
sewer pipe pressure washing
-
sewer maintenance
-
sewerage
-
transport of waste
-
waste management
-
general and home services
-
fat trappers
-
water supply and repair of sewers
-
pressure washing of sewage pipes
-
cleaning of grease wells
-
cleaning sand trappers
-
street cleaning
-
cleaning and emptying of rainwater wells
-
pumping work
-
video surveys and pipeline searches
-
snow removal
-
watering services
-
waste management services
-
environmental cleaning solutions
-
fat-trapping cleaning
-
maintenance of sand trappers
-
plumbing video inspection
-
hydro cleaning services
-
rainwater pit services
-
transport of waste
-
waste management consulting
-
cleansing of grease traps
-
maintenance of sand traps
- Credit score:
- Reliable
- Reputation score:
- 4,210
- Employees:
- 19
- Forecast turnover (2026):
- 2,970,521 €
Construction of electricity and communications networks
Energy, energy and mineral resources, heating, rental workforce mediation, Communications and computer networks, Construction of substations, construction of air and ground cable lines, stress work, installation of end and extension sleeves, switches
-
heating
-
construction of substations
-
construction of air and ground cable lines
-
construction of industrial automation
-
construction of lightning protection systems
-
construction and maintenance
-
building
-
energy
-
energy and mineral resources
-
rental workforce mediation
-
communications and computer networks
-
stress work
-
installation of end and extension sleeves
-
switches
-
control measurements of electrical installations
-
construction of grounding and lightning protection systems
-
control measurements of installations
-
control measurements
-
voltage works 0,4 to 20 kv
-
installation of end and extension sleeves up to 52 kv
-
communication lines
-
outdoor lighting
-
industrial automation
-
grounding systems
-
installation of end and extension sleeves 52 kv
-
design
-
electrical consultancy
-
search and remediation of breakdowns
-
electricity
-
installation work