Turquoise has undertaken numerous investments, both as fund manager and as principal investor.

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Investments
Arriba Cooltech

Arriba Cooltech

Developer energy efficient cooling and heating solutions.

www.arribacooltech.co.uk
Vayon

Vayon

Design and development of electric and hybrid power systems for vehicles. Liquidated in 2016

www.vayongroup.com
Natural Resources

Natural Resources

Equipment for production of bottles and other containers from paper pulp.

www.sinfiltrate.co.uk
Ebonex / Atraverda

Ebonex / Atraverda

Developer of advanced bipolar lead-acid battery technologies. Trade Sale in 2017

www.ebonex.co.uk
Oval Medical Technologies

Oval Medical Technologies

Range of auto-injectors optimised for portability, and for self-administration of wider range of medicines. Trade sale in 2016.

www.ovalmedical.com
SupaPass

SupaPass

Music streaming, brand sponsorship, fan club and other solutions for artists to monetise creative content on-line.

www.supapass.com
Caralon Global

Caralon Global

Developer of novel vaccum insulated panels for high performance thermal insulation. Liquidated in 2015.

www.caralonglobal.com
Sustainable Marine Energy

Sustainable Marine Energy

Innovative platform for reducing cost/risk of tidal energy solutions.

www.sustainablemarine.com
Green Energy Options (GEO)

Green Energy Options (GEO)

Home electricity and heat control and display systems for smart metering applications, and associated web services and data analytics for utilities.

www.greenenergyoptions.co.uk
Amiho

Amiho

Developer of wireless control solutions for smart energy networks.

www.amiho.co.uk
Push Energy

Push Energy

Developer of large scale ground mounted solar farms, with in-house EPC and O&M capability. Exited through management buyout in 2015.

www.pushenergy.co.uk
Anvil Semiconductors

Anvil Semiconductors

Developer of low cost silicon carbide semiconductor technology.

www.anvil-semi.co.uk
Grimes on the beach

Grimes on the beach

First UK feature film to use a low carbon approach to film making using BAFTA’s Albert carbon footprinting tool.

www.grimesonthebeachfilm.com
GT Energy

GT Energy

Developer of deep geothermal heat plants.

www.gtenergy.net
Trident Energy

Trident Energy

Low cost generator for converting linear wave motion to electricity.

www.tridentenergy.co.uk
Breathing Buildings

Breathing Buildings

Energy-efficient ventilation solution for new buildings. Trade sale in 2016.

www.breathingbuildings.co.uk
Weeding Tech

Weeding Tech

Steam/foam alternative to chemical herbacidies for vegetation control.

www.weedingtech.com
iSotera

iSotera

Novel power delivery system for LED lighting for reduced installation time/cost and better durability.

www.isotera.com
TeraView

TeraView

TeraHertz frequency scanning for fault detection.

www.teraview.com
Bactest

Bactest

Bacterial respirometer for rapid detection and measurement of biological contaminants.

www.bactest.com
Controlled Power Technologies

Controlled Power Technologies

Mild hybrid technologies for electrification of conventional vehicles for reduced emissions and better fuel economy.

www.cpowert.com
Gasrec

Gasrec

Landfill gas to Bio-LNG transport fuels, technology and plant development (UK)

www.gasrec.co.uk
Vireol

Vireol

Bioethanol plant development (UK)

www.vireol.com
Abacus Wood

Abacus Wood

Wood pellet production and biomass CHP project development. Liquidated in 2013

www.abacuswood.co.uk
Zeta Petroleum

Zeta Petroleum

Oil & gas exploration and production company active in Turkey and Romania. IPO in 2012.

www.zetapetroleum.com
Syrinix

Syrinix

Acoustic monitoring of water trunk mains for leaks and bursts.

www.syrinix.com
CH4NGE

CH4NGE

Developer of socially beneficial (gold standard) CDM projects (India and China). Trade sale in 2013.

www.CH4NGE.co.uk
Moorland Energy

Moorland Energy

Onshore oil & gas exploration in UK.

www.moorland-energy.com
Ellergreen

Ellergreen

Small hydro projects (UK)

www.ellergreen.com
NordAq Energy

NordAq Energy

Onshore oil & gas exploration US

www.nordaqenergy.com
Valeo Air Management

Valeo Air Management

Electric supercharger for automotive emission reductions. Trade sale in 2011.

www.valeo.com
Gravitec Instruments

Gravitec Instruments

Gravity gradiometer technology for oil & gas exploration (UK)

www.gravitec.co.nz
Proton Power Systems Plc

Proton Power Systems Plc

Developer of triple hybrid (fuel cell/battery/capacitor) drives ships, buses, and industrial vehicles (UK and Germany). IPO in 2006.

www.protonpowersystems.com
Scotsdale Petroleum

Scotsdale Petroleum

North Sea oil & gas exploration company.

www.scotsdalepetroleum.com
Intelligent Energy

Intelligent Energy

Developer of fuel cell technologies and products (UK). IPO in 2014.

www.intelligent-energy.com