CONSULTING   /   Feasibility studies   /   Risk assessment

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TONUS 21 Ltd. is your partner in creating sustainable solutions for long-term success.

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Consulting

Advising municipalities, companies and non-governmental organizations in the preparation of projects for the improvement and modernization of existing infrastructure and facilities.

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Feasibility studies

Preparation of feasibility studies for environmental infrastructure and their design.

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Financial and economic analysis

Financial and economic analysis of investments for infrastructure and environmental projects and cost-benefit analysis.

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Risk assessment

The essence of a risk assessment is to identify the hazards associated with the job, the work process and the work environment with a subsequent decision to mitigate or eliminate that risk.

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Integrated Municipal Development Plan (IMDP)

The IMDP identifies the medium-term sustainable development goals and priorities for a municipality for the period 2021-2027.

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Environmental impact assessment (EIA)

A statutory procedure for identifying, analyzing, assessing, and predicting the changes that may occur to natural components due to projects.

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—   ABOUT TONUS 21 Ltd.

Your trusted partner

TONUS 21 Ltd. is a Bulgarian consulting company founded in April 2003 by a group of professionals with experience managing projects financed by the European Union, especially those concerned with developing public infrastructure and the environment.

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“Sustainable business is not a coincidence, but the result of the right decisions.” TONUS 21 Ltd.
Programmes
TONUS 21 Ltd.

Projects

Follow our latest projects.

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November 12, 2026

Development of a long-term programme to promote the use of energy from renewable sources and biofuels on the territory of Varna Municipality 2021-2030

Contract: Development of a long-term programme to promote the use of energy from renewable sources and biofuels on the territory […]

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