By Kestutis Balciunas — European long-term investor, 11+ years self-directed. Reviewed against my editorial process on 4 June 2026.
Last reviewed: 4 June 2026. Indicative data — a research starting point, not recommendations. Some broker links are affiliate links — see my affiliate disclosure. Not investment advice.
ESG / Sustainable ETF Screener
“ESG” on a fund’s name tells you almost nothing — it can mean a portfolio that excludes a couple of tobacco stocks and is otherwise identical to the plain index, or one that keeps only the most sustainable quarter of the market. This screener does what most “best ESG ETF” lists don’t: it tags each sustainable UCITS ETF by how strict its approach actually is — Screened, Enhanced, SRI, Paris-Aligned or thematic — so you can filter to the level of sustainability you genuinely want, rather than buying a green label that barely changes what you own.
Filter sustainable UCITS ETFs by approach, region and cost
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The free 12-page Starter Kit turns them into decisions: your first fund, a safe broker, and the tax basics for your country.
The ESG spectrum: from barely different to genuinely strict
Sustainable funds sit on a spectrum, and the difference between the ends is enormous:
- ESG Screened — the lightest touch. The fund excludes a handful of worst-offender sectors (controversial weapons, thermal coal, tobacco) and otherwise holds nearly the whole index. It is cheap and barely deviates from the market, which is the point — and the limitation if you wanted something meaningfully different.
- ESG Enhanced / Leaders — tilts the portfolio toward companies with better ESG ratings and away from the worst, while keeping broad diversification. A middle ground.
- SRI (Socially Responsible) — far stricter. Typically keeps only the top ~25% of companies by ESG score within each sector. This concentrates the portfolio, can make it tilt toward certain styles and sectors, and will diverge from the broad market more noticeably, for better or worse.
- Paris-Aligned / Climate — built around a decarbonisation trajectory, reducing carbon intensity over time rather than just screening on ESG scores.
- Thematic — concentrated bets on a single theme like clean energy. These are not diversified ESG funds; they are high-conviction sector funds with all the volatility that implies.
Why “ESG” on the label means almost nothing
There is no single legal definition of an ESG fund, and providers apply very different methodologies under the same words. Two “MSCI World ESG” funds from different issuers can hold materially different portfolios, and an ESG-Screened fund can be 95% identical to the standard index. This is the heart of the greenwashing problem: a label that lets a fund market itself as sustainable while changing little. The screener’s approach tags are the antidote — they tell you roughly how far each fund actually departs from the market. Before you filter, decide honestly whether you want a light tilt that tracks the market closely, or a strict portfolio that will look and perform quite differently; then read the fund’s actual ESG policy and KID to confirm it does what its name implies.
The trade-offs to go in with your eyes open
Sustainable investing involves real trade-offs, and pretending otherwise does no one a favour. Stricter funds are usually more expensive (and thematic ones much more so), more concentrated and therefore more volatile, and they will sometimes underperform and sometimes outperform the broad market depending on which sectors are in favour — excluding energy, for instance, helps in some years and hurts in others. None of that is a reason to avoid ESG investing if it matches your values; it is a reason to choose deliberately, keep costs in check, and not expect a free lunch. Compare any fund you shortlist on TER, domicile and tax in the UCITS ETF comparison tool, and check it is not heavily overlapping your existing core in the overlap analyzer.
How to choose an ESG ETF you will actually be happy with
Pick the strictness level first — a light Screened or Enhanced fund if you mainly want to avoid the worst names while tracking the market, or an SRI or Paris-Aligned fund if you want a portfolio that genuinely reflects your values and accept it will differ from the index. Then choose the cheapest, best-diversified fund at that level, slot it into your overall plan in the portfolio builder, and keep an eye on the fee with the ETF fee calculator. When you are ready to buy, my top pick for opening an account is Freedom24, with Trade Republic, Interactive Brokers and XTB as alternatives.
Frequently asked questions
What is the best ESG ETF for European investors?
It depends on how strict you want to be. For a light, low-cost tilt that tracks the market, a broad MSCI World ESG Screened or Enhanced fund (~0.12–0.20% TER) is a sensible default. For a genuinely values-aligned portfolio, an MSCI World SRI or Paris-Aligned fund applies much stronger filters at the cost of more concentration. Decide the strictness level first, then pick the cheapest well-diversified fund at that level.
What is the difference between ESG and SRI funds?
ESG-Screened or ESG-Enhanced funds make light adjustments — excluding the worst sectors or tilting toward higher-rated companies — and stay close to the broad index. SRI (Socially Responsible Investing) funds are much stricter, typically keeping only the top ~25% of companies by ESG score, which makes them more concentrated and more different from the market. SRI is the more demanding standard.
Do ESG ETFs underperform the market?
Not systematically in either direction. Light ESG-Screened funds track the market very closely, so their returns are almost identical. Stricter SRI and thematic funds deviate more and will outperform in some periods and underperform in others depending on which excluded sectors (often energy) are in or out of favour. Over the long run the difference for broad ESG funds has been small; concentrated thematic funds are far more variable.
Is ESG investing just greenwashing?
Some of it effectively is — a light ESG-Screened fund can be 95% identical to the standard index while marketing itself as sustainable. But genuinely strict SRI and Paris-Aligned funds do change what you own substantially. The label alone is unreliable; the methodology is what matters. Use the approach tags here to gauge how far a fund really departs from the market, and read its ESG policy before buying.
Are ESG ETFs more expensive?
Usually a little, and stricter or thematic ones much more. Broad ESG-Screened world funds run around 0.12–0.20% TER, close to conventional trackers; SRI funds are similar to slightly higher; thematic climate funds can charge 0.5% or more. Keep the fee in mind, because over decades it compounds against you — size the impact in the ETF fee calculator.
Next: compare your ESG shortlist in the UCITS ETF comparison tool, check overlap with your core in the overlap analyzer, and build the mix in the portfolio builder.