www.fidic.org - International Federation of Consulting Engineers (FIDIC)

www.kiip.bg - Chamber of Engineers in the Investment Design

www.dker.bg - Energy and water regulatory commision - Republic of Bulgaria

www.sai-bg.com - John Atanasoff Society of Automatics and Informatics

www.project.bg - Bulgarian Project Management Association

www.sme.government.bg - Bulgarian Small and Medium Enterprises Promotion Agency

commission.europa.eu/funding-tenders_en - European Commission - Funding & tender opportunities

www.iaee.org - International Association for Energy Economics (IAEE)

www.eufunds.bg - European Structural and Invetment Funds