Sustainability, turned into action.
Ontos helps businesses, investors and financial institutions turn sustainability priorities into practical strategy, stronger decisions and lasting progress — through advisory projects or embedded interim leadership.

Clarity when sustainability gets complicated.
Sustainability challenges rarely sit in one place. They span strategy, data, regulation, investment decisions, risk and implementation. Ontos brings those pieces together into a clear direction and practical next steps.
Built around you
Your context, priorities and ambitions shape the work.
Grounded in action
Practical strategies, clear decisions and implementation — not sustainability theatre.
Independent perspective
Objective advice grounded in investment, sustainability and financial-sector experience.
Built for organisations navigating sustainability complexity.
Businesses
Move from sustainability ambition to strategy, governance, data and practical action.
Asset managers
Strengthen responsible investment, ESG integration, portfolio analysis and sustainability practices across the investment lifecycle.
Private equity
Bring sustainability risks and opportunities into due diligence, investment decisions and portfolio value creation.
Financial institutions
Translate sustainability expectations, risk considerations and evolving requirements into practical frameworks and implementation.
Institutional investors
Develop practical responsible investment strategies, assess external managers and understand sustainability-related portfolio risks.
Five ways we work with you.
Advisory projects, or embedded leadership.
Sustainability Strategy & Implementation
Set clear sustainability priorities, assign ownership and build the roadmap that turns them into decisions and action.
Explore this service →Responsible Investment & Sustainable Finance
Connect responsible investment priorities with policies, decision-making and financing instruments — so they shape how capital is allocated.
Explore this service →Investment Due Diligence, Climate & Nature Risk
Assess the sustainability risks, practices and evidence behind funds, managers, deals and portfolios — and what they mean for the decision in front of you.
Explore this service →ESG Data, Reporting & Disclosure
Build reliable ESG data, Scope 1 and Scope 2 emissions baselines and end-to-end sustainability reporting — from data collection to final report.
Explore this service →Interim Sustainability Manager
An embedded sustainability partner for organisations navigating leadership gaps, transformation, new requirements or ambitious sustainability programmes.
Embedded expertise with a defined mandate, clear priorities and practical delivery.
Also available: independent live ESG training and workshops, and carbon market feasibility research.
Where sustainability meets decision-making.
Ontos combines sustainability expertise with experience across investment, asset management and financial-sector policy. That perspective helps translate sustainability into the language of decisions — risk, governance, capital and accountability.
Strategic
Start with what matters to the organisation and its stakeholders.
Practical
Turn recommendations into frameworks, responsibilities and actions.
Independent
Provide an objective perspective focused on what is useful, material and achievable.

From the bigger picture to the next right step.
Understand
Understand your organisation, context, stakeholders and priorities.
Diagnose
Identify the material sustainability challenges, risks and opportunities.
Prioritise
Separate what matters most from what can wait.
Build
Develop the strategy, framework, governance and tools required.
Implement
Translate ambition into actions, responsibilities and measurable outcomes.
Improve
Review what works, learn from experience and strengthen the approach over time.
Experience across investment, sustainability and policy.
Ontos is led by Pravena Jawahar and brings more than six years of experience across responsible investment, sustainable finance, asset management, institutional investment and financial-sector policy — in Europe and Asia.
Aegon Asset Management
Responsible investments
KWAP
Responsible investment, public pension fund
Securities Commission Malaysia
Sustainable finance policy
Selected experience.
Drawn from the founder’s prior roles and independent consulting. Organisations anonymised.
Public pension fund
- Challenge
- Set a clear direction for responsible investment across the fund.
- Approach
- Developed a three-year sustainability blueprint with targets, policies and exclusions.
- Outcome
- Adopted by the board, with targets tracked against it.
Institutional investor
- Challenge
- Understand sustainability practices behind private equity funds and deals.
- Approach
- Reviewed processes and evidence across more than ten funds and deals (USD 10bn+).
- Outcome
- Findings and corrective actions tracked to closure.
Asset manager
- Challenge
- Understand portfolio exposure to biodiversity and nature-related risks.
- Approach
- Applied the ENCORE methodology across more than 500 equity and fixed income holdings.
- Outcome
- A documented, reusable analysis of nature-related exposure.
Multilateral development bank
- Challenge
- Define the sustainability basis of a Sukuk financing instrument.
- Approach
- Developing the framework, use of proceeds, KPIs and targets.
- Outcome
- A clearer sustainability rationale for the instrument.
Capital markets regulator
- Challenge
- Gather market input on a national sustainable finance taxonomy.
- Approach
- Led the consultation phase, consolidating input from more than 20 organisations.
- Outcome
- Structured input for consultation responses.
Institutional investor
- Challenge
- Assess how external managers integrate sustainability in practice.
- Approach
- Assessed more than ten managers on processes, governance, data and reporting.
- Outcome
- More consistent assessment and monitoring.
Questions worth asking.
Short perspectives on sustainability, investment and the decisions in between.
ESG data is only useful when it changes a decision.
Responsible investment starts with the investment process.
What good ESG due diligence should tell an investment committee.
From sustainability strategy to implementation: where organisations get stuck.
When does biodiversity become financially material?
Why sustainability reporting should start with the decisions it needs to support.
Have a sustainability challenge you’re trying to solve?
Tell us where you are today and what you are trying to achieve. We can start from there.