diff --git a/.github/workflows/build-segyio.yml b/.github/workflows/build-segyio.yml
new file mode 100644
index 000000000..69a935ec8
--- /dev/null
+++ b/.github/workflows/build-segyio.yml
@@ -0,0 +1,94 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+# This workflow is based on: https://github.com/equinor/segyio/blob/v1.9.14/.github/workflows/wheels.yaml
+name: Build segyio wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'segyio version to build (git tag without leading v, e.g. 1.9.14)'
+        required: true
+        default: '1.9.14'
+  pull_request:
+    paths:
+      - '.github/workflows/build-segyio.yml'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ inputs.version || '1.9.14' }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  SEGYIO_VERSION: ${{ inputs.version || '1.9.14' }}
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+
+  build_wheels:
+    needs: [setup]
+    name: Build segyio ${{ inputs.version || '1.9.14' }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ["cp312", "cp313", "cp314", "cp314t"]
+
+    steps:
+      - name: Checkout segyio v${{ env.SEGYIO_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: equinor/segyio
+          ref: v${{ env.SEGYIO_VERSION }}
+          persist-credentials: false
+
+      - name: Stage LICENSE beside pyproject.toml
+        # License.md lives at the repo root; scikit-build-core's default
+        # license-files glob only looks inside package-dir (python/).
+        run: cp License.md python/LICENSE
+
+      - uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          package-dir: python
+          output-dir: wheelhouse/
+          only: ${{ matrix.python }}-manylinux_riscv64
+        env:
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            PIP_ONLY_BINARY=numpy
+
+      - name: Check wheel contents
+        run: |
+          python3 - wheelhouse/*.whl <<'EOF'
+          import sys, zipfile
+          for whl in sys.argv[1:]:
+              names = zipfile.ZipFile(whl).namelist()
+              exts = {n.rsplit("/", 1)[-1].split(".")[0] for n in names if n.endswith(".so")}
+              assert exts == {"_segyio"}, (whl, exts)
+              licences = {n.rsplit("/", 1)[-1] for n in names if ".dist-info/licenses/" in n} - {""}
+              assert licences == {"LICENSE"}, (whl, licences)
+              print(whl, "ok")
+          EOF
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: segyio-${{ env.SEGYIO_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish segyio ${{ inputs.version || '1.9.14' }}
+    needs: [setup, build_wheels]
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    with:
+      artifact-pattern: segyio-${{ inputs.version || '1.9.14' }}-*-manylinux_riscv64