Sustain

Sustain

SustainSolutions

Kongens Lyngby, Denmark

SolarEnergy StorageOtherPrivate company
Founded 2017
Profile last updated: September 24, 2026

About

Founded in 2017, Sustain is a private company headquartered in Kongens Lyngby, Denmark specializing in Solar, Energy Storage, Other.

Sustain is a Danish renewable energy and energy efficiency consulting and engineering company. The company specializes in climate optimization of buildings and development of infrastructure needed to achieve climate goals. Sustain offers a comprehensive 360-degree approach covering solar PV installations, heat pump systems, ventilation optimization, LED lighting upgrades, building envelope improvements, and thermal networks (termonet). The company provides services across consulting, project management, engineering, construction and operation for commercial buildings, public facilities, and residential properties. Sustain operates its own ESCO 2.0 financing model in partnership with pension fund PKA and Danmarks Grønne Investeringsfond (Danish Green Investment Fund). The company has completed over 50 energy-saving projects across Denmark and works with municipalities, housing associations, and institutional investors.

Headquarters

Kongens Lyngby, Denmark

Founded

2017

Company type

Private company

Focus areas

solar PVheat pumpsenergy efficiencyventilationLED lightingbuilding renovationthermal networksESCO financingDenmark

Products & services

Business models

B2BEPCESCO

Value chain

DevelopmentEngineeringConstructionO&MConsultingAdvisory

Locations

Headquarters

Lyngby Hovedgade 102, 2800, Kongens Lyngby, Denmark

Projects

17

Forca Office Building Solar Installation

Rooftop solar PV

Solar panel installation on rooftop of office building with new roofing and air conditioning

0.8 MW capacityHellerup, DenmarkClient: Forca

The Library Coworking Space

Rooftop solar PV

255 solar panels installed on roof, producing annual power equivalent to 15 single-family houses

Copenhagen, DenmarkClient: The Library

Cofoco Food Solar Installation

Rooftop solar PV

Solar panels for food production company

Client: Cofoco Food

Simply Chocolate Solar Installation

Rooftop solar PV
Client: Simply Chocolate

32NORD Residential Solar

Rooftop solar PV
Rønne, DenmarkClient: 32NORD

Lyfa Parken Solar Installation

Rooftop solar PV
Måløv, DenmarkClient: Lyfa Parken

Copenhagen Zoo

Rooftop solar PV

Solar panels and water treatment installation

Client: Copenhagen Zoo

Lyngby Port

Rooftop solar PV

Solar panels and new lighting installation

Client: Lyngby Port

Plejecenter Kildebakken and Vesterbo

Rooftop solar PV

Solar installation for care facilities

Denmark

FOB Kalundborg

Energy efficiency retrofit

Energy renovation with doubled savings

Kalundborg, Denmark

Salus Boligadministration

Ventilation optimization

Ventilation upgrade across 750 homes with EC-motor systems

Denmark

Ejerforeningen Ringparken

Building envelope and heating renovation

Energy performance improvement from grade E to C through insulation and heating upgrades

Sønderborg, Denmark

Hørsholm Golf Club

Heat pump installation

Replacement of oil heating with heat pumps

Hørsholm, Denmark

Givskud Zoo

Energy efficiency retrofit

Replacement of oil heating and lighting with environmentally friendly technology

Givskud, Denmark

Aalborg Zoo

Energy efficiency retrofit
Aalborg, Denmark

Lolland Falster Airport

Heat pump installation

Replacement of oil heating with new green heating solution

Lolland, Denmark

Kroppedal Museum

Heat pump installation

Oil furnace replacement with heat pumps

Denmark

Credentials & affiliations

Certifications

Professional Liability Insurance

Issued by: Top Danmark

Industry memberships

CoolGeoHeat (Interreg ÖKS)

Partnerships

PKA, Danmarks Grønne Investeringsfond

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