diff --git a/static/compatibilities.yaml b/static/compatibilities.yaml
index 61ed8195ae..0760b12925 100644
--- a/static/compatibilities.yaml
+++ b/static/compatibilities.yaml
@@ -30910,3 +30910,45 @@ addons:
     chart_version: 0.1.1
     images: ['wiziopublic.azurecr.io/wiz-app/wiz-network-analyzer:0.1']
   name: wiz-network-analyzer
+- icon: https://helm.elastic.co/icons/eck.png
+  git_url: https://github.com/elastic/cloud-on-k8s
+  release_url: https://github.com/elastic/cloud-on-k8s/releases/tag/v{vsn}
+  helm_repository_url: https://helm.elastic.co
+  versions:
+  - version: 3.5.0
+    kube: ['1.36', '1.35', '1.34', '1.33', '1.32']
+    chart_version: 3.5.0
+    requirements: []
+    incompatibilities: []
+    summary: null
+  - version: 3.4.1
+    kube: ['1.36', '1.35', '1.34', '1.33', '1.32', '1.31']
+    chart_version: 3.4.1
+    requirements: []
+    incompatibilities: []
+    summary: null
+  - version: 3.3.2
+    kube: ['1.35', '1.34', '1.33', '1.32', '1.31']
+    chart_version: 3.3.2
+    requirements: []
+    incompatibilities: []
+    summary: null
+  - version: 3.2.0
+    kube: ['1.34', '1.33', '1.32', '1.31', '1.30']
+    chart_version: 3.2.0
+    requirements: []
+    incompatibilities: []
+    summary: null
+  - version: 3.1.0
+    kube: ['1.33', '1.32', '1.31', '1.30', '1.29']
+    chart_version: 3.1.0
+    requirements: []
+    incompatibilities: []
+    summary: null
+  - version: 3.0.0
+    kube: ['1.32', '1.31', '1.30', '1.29', '1.28']
+    chart_version: 3.0.0
+    requirements: []
+    incompatibilities: []
+    summary: null
+  name: eck-operator
diff --git a/static/compatibilities/eck-operator.yaml b/static/compatibilities/eck-operator.yaml
new file mode 100644
index 0000000000..b47732e767
--- /dev/null
+++ b/static/compatibilities/eck-operator.yaml
@@ -0,0 +1,42 @@
+icon: https://helm.elastic.co/icons/eck.png
+git_url: https://github.com/elastic/cloud-on-k8s
+release_url: https://github.com/elastic/cloud-on-k8s/releases/tag/v{vsn}
+helm_repository_url: https://helm.elastic.co
+versions:
+- version: 3.5.0
+  kube: ['1.36', '1.35', '1.34', '1.33', '1.32']
+  chart_version: 3.5.0
+  requirements: []
+  incompatibilities: []
+  summary: null
+- version: 3.4.1
+  kube: ['1.36', '1.35', '1.34', '1.33', '1.32', '1.31']
+  chart_version: 3.4.1
+  requirements: []
+  incompatibilities: []
+  summary: null
+- version: 3.3.2
+  kube: ['1.35', '1.34', '1.33', '1.32', '1.31']
+  chart_version: 3.3.2
+  requirements: []
+  incompatibilities: []
+  summary: null
+- version: 3.2.0
+  kube: ['1.34', '1.33', '1.32', '1.31', '1.30']
+  chart_version: 3.2.0
+  requirements: []
+  incompatibilities: []
+  summary: null
+- version: 3.1.0
+  kube: ['1.33', '1.32', '1.31', '1.30', '1.29']
+  chart_version: 3.1.0
+  requirements: []
+  incompatibilities: []
+  summary: null
+- version: 3.0.0
+  kube: ['1.32', '1.31', '1.30', '1.29', '1.28']
+  chart_version: 3.0.0
+  requirements: []
+  incompatibilities: []
+  summary: null
+name: eck-operator
diff --git a/static/compatibilities/manifest.yaml b/static/compatibilities/manifest.yaml
index 6d325d796f..6edfc83601 100644
--- a/static/compatibilities/manifest.yaml
+++ b/static/compatibilities/manifest.yaml
@@ -49,3 +49,4 @@ names:
 - wiz-sensor
 - wiz-admission-controller
 - wiz-network-analyzer
+- eck-operator
diff --git a/utils/compatibility/scrapers/eck-operator.py b/utils/compatibility/scrapers/eck-operator.py
new file mode 100644
index 0000000000..2613b1cf78
--- /dev/null
+++ b/utils/compatibility/scrapers/eck-operator.py
@@ -0,0 +1,107 @@
+from __future__ import annotations
+
+import re
+from collections import OrderedDict
+
+from packaging.version import InvalidVersion, Version
+
+from utils import fetch_page, get_chart_versions, update_compatibility_info
+
+app_name = "eck-operator"
+README_URL = "https://raw.githubusercontent.com/elastic/cloud-on-k8s/v{version}/README.md"
+MIN_MAJOR = 3
+
+
+def parse_kube_range(markdown: str) -> list[str]:
+    match = re.search(
+        r"^\s*[*-]\s+Kubernetes\s+1\.(\d+)\s*-\s*1\.(\d+)\s*$",
+        markdown,
+        re.MULTILINE,
+    )
+    if not match:
+        raise ValueError("ECK Kubernetes support range not found")
+
+    start, end = map(int, match.groups())
+    if start > end:
+        raise ValueError("ECK Kubernetes support range is reversed")
+
+    return [f"1.{minor}" for minor in range(end, start - 1, -1)]
+
+
+def latest_chart_per_minor(chart_versions: dict[str, str]) -> list[tuple[str, str]]:
+    latest: dict[tuple[int, int], tuple[Version, str]] = {}
+
+    for app_version, chart_version in chart_versions.items():
+        try:
+            parsed = Version(app_version)
+        except InvalidVersion:
+            continue
+
+        if parsed.is_prerelease or parsed.is_devrelease or parsed.major < MIN_MAJOR:
+            continue
+
+        key = (parsed.major, parsed.minor)
+        current = latest.get(key)
+        if current is None or parsed > current[0]:
+            latest[key] = (parsed, chart_version)
+
+    return [
+        (str(parsed), chart_version)
+        for parsed, chart_version in sorted(
+            latest.values(),
+            key=lambda item: item[0],
+            reverse=True,
+        )
+    ]
+
+
+def build_rows(
+    chart_versions: dict[str, str],
+    fetcher=fetch_page,
+) -> list[OrderedDict[str, object]]:
+    candidates = latest_chart_per_minor(chart_versions)
+    if not candidates:
+        raise ValueError("No supported ECK Helm releases found")
+
+    rows: list[OrderedDict[str, object]] = []
+    for version, chart_version in candidates:
+        url = README_URL.format(version=version)
+        content = fetcher(url)
+        if not content:
+            raise ValueError(f"Could not fetch ECK {version} README")
+
+        if isinstance(content, bytes):
+            try:
+                markdown = content.decode("utf-8")
+            except UnicodeDecodeError as exc:
+                raise ValueError(f"Could not decode ECK {version} README") from exc
+        elif isinstance(content, str):
+            markdown = content
+        else:
+            raise ValueError(f"Unexpected ECK {version} README payload")
+
+        rows.append(
+            OrderedDict(
+                [
+                    ("version", version),
+                    ("kube", parse_kube_range(markdown)),
+                    ("chart_version", chart_version),
+                    ("requirements", []),
+                    ("incompatibilities", []),
+                ]
+            )
+        )
+
+    return rows
+
+
+def scrape() -> None:
+    chart_versions = get_chart_versions(app_name)
+    if not chart_versions:
+        raise ValueError("No official ECK Helm releases found")
+
+    rows = build_rows(chart_versions)
+    update_compatibility_info(
+        f"../../static/compatibilities/{app_name}.yaml",
+        rows,
+    )
diff --git a/utils/compatibility/tests/test_eck_operator.py b/utils/compatibility/tests/test_eck_operator.py
new file mode 100644
index 0000000000..878b205589
--- /dev/null
+++ b/utils/compatibility/tests/test_eck_operator.py
@@ -0,0 +1,128 @@
+import importlib.util
+from pathlib import Path
+from types import ModuleType
+import sys
+import unittest
+from unittest.mock import Mock, patch
+
+helpers = ModuleType("utils")
+helpers.fetch_page = Mock()
+helpers.get_chart_versions = Mock()
+helpers.update_compatibility_info = Mock()
+
+# The scraper imports its helpers from a top-level `utils` module. Keep that
+# temporary stub strictly scoped to module loading so this test cannot affect
+# compatibility tests imported later in the same unittest discovery process.
+_original_utils = sys.modules.get("utils")
+sys.modules["utils"] = helpers
+try:
+    SCRAPER_PATH = Path(__file__).parents[1] / "scrapers" / "eck-operator.py"
+    spec = importlib.util.spec_from_file_location("eck_operator", SCRAPER_PATH)
+    scraper = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(scraper)
+finally:
+    if _original_utils is None:
+        sys.modules.pop("utils", None)
+    else:
+        sys.modules["utils"] = _original_utils
+
+
+def readme(kube_range: str) -> bytes:
+    return f"""# Elastic Cloud on Kubernetes (ECK)
+
+Supported versions:
+
+* Kubernetes {kube_range}
+* OpenShift 4.16-4.22
+""".encode("utf-8")
+
+
+class EckOperatorTests(unittest.TestCase):
+    def test_parses_kubernetes_range_descending(self):
+        self.assertEqual(
+            scraper.parse_kube_range(readme("1.32-1.36").decode()),
+            ["1.36", "1.35", "1.34", "1.33", "1.32"],
+        )
+
+    def test_accepts_whitespace_around_range_separator(self):
+        self.assertEqual(
+            scraper.parse_kube_range(readme("1.31 - 1.35").decode()),
+            ["1.35", "1.34", "1.33", "1.32", "1.31"],
+        )
+
+    def test_missing_kubernetes_range_fails_closed(self):
+        with self.assertRaisesRegex(ValueError, "support range not found"):
+            scraper.parse_kube_range("# ECK\n* OpenShift 4.16-4.22")
+
+    def test_reversed_range_fails_closed(self):
+        with self.assertRaisesRegex(ValueError, "reversed"):
+            scraper.parse_kube_range(readme("1.36-1.32").decode())
+
+    def test_latest_patch_per_minor_and_legacy_filter(self):
+        charts = {
+            "3.5.0": "3.5.0",
+            "3.4.0": "3.4.0",
+            "3.4.1": "3.4.1",
+            "3.3.2": "3.3.2",
+            "3.6.0-beta1": "3.6.0-beta1",
+            "2.16.0": "2.16.0",
+            "not-a-version": "x",
+        }
+        self.assertEqual(
+            scraper.latest_chart_per_minor(charts),
+            [
+                ("3.5.0", "3.5.0"),
+                ("3.4.1", "3.4.1"),
+                ("3.3.2", "3.3.2"),
+            ],
+        )
+
+    def test_build_rows_uses_tagged_release_readmes(self):
+        charts = {"3.5.0": "3.5.0", "3.4.1": "3.4.1"}
+        payloads = {
+            scraper.README_URL.format(version="3.5.0"): readme("1.32-1.36"),
+            scraper.README_URL.format(version="3.4.1"): readme("1.31-1.36"),
+        }
+
+        rows = scraper.build_rows(charts, payloads.get)
+
+        self.assertEqual([row["version"] for row in rows], ["3.5.0", "3.4.1"])
+        self.assertEqual(rows[0]["kube"], ["1.36", "1.35", "1.34", "1.33", "1.32"])
+        self.assertEqual(rows[1]["chart_version"], "3.4.1")
+
+    def test_missing_tagged_readme_fails_closed(self):
+        with self.assertRaisesRegex(ValueError, "Could not fetch"):
+            scraper.build_rows({"3.5.0": "3.5.0"}, lambda _: None)
+
+    def test_invalid_utf8_fails_closed(self):
+        with self.assertRaisesRegex(ValueError, "Could not decode"):
+            scraper.build_rows({"3.5.0": "3.5.0"}, lambda _: b"\xff")
+
+    def test_scrape_connects_helm_versions_to_shared_updater(self):
+        charts = {"3.5.0": "3.5.0"}
+        with (
+            patch.object(scraper, "get_chart_versions", return_value=charts) as get_charts,
+            patch.object(scraper, "fetch_page", return_value=readme("1.32-1.36")),
+            patch.object(scraper, "update_compatibility_info") as update,
+        ):
+            original = scraper.build_rows
+
+            def wired(chart_versions):
+                return original(chart_versions, scraper.fetch_page)
+
+            with patch.object(scraper, "build_rows", side_effect=wired):
+                scraper.scrape()
+
+        get_charts.assert_called_once_with("eck-operator")
+        path, rows = update.call_args.args
+        self.assertEqual(path, "../../static/compatibilities/eck-operator.yaml")
+        self.assertEqual(rows[0]["version"], "3.5.0")
+
+    def test_scrape_rejects_empty_helm_mapping(self):
+        with patch.object(scraper, "get_chart_versions", return_value={}):
+            with self.assertRaisesRegex(ValueError, "No official ECK Helm"):
+                scraper.scrape()
+
+
+if __name__ == "__main__":
+    unittest.main()