diff --git a/src/components/FlatmapVuer.vue b/src/components/FlatmapVuer.vue
index 13cf43b2..47ba0b1e 100644
--- a/src/components/FlatmapVuer.vue
+++ b/src/components/FlatmapVuer.vue
@@ -634,6 +634,7 @@ import { capitalise, normaliseAlertToStringArray } from './utilities.js'
 import yellowstar from '../icons/yellowstar'
 import ResizeSensor from 'css-element-queries/src/ResizeSensor'
 import flatmap from '../services/flatmapLoader.js'
+import { attachSomaLocationMarkerMethods } from '../services/somaLocationMarkers.js'
 import { AnnotationService } from '@abi-software/sparc-annotation'
 import { mapState } from 'pinia'
 import { useMainStore } from '@/store/index'
@@ -2845,7 +2846,7 @@ export default {
           }
         )
         promise1.then((returnedObject) => {
-          this.mapImp = returnedObject
+          this.mapImp = attachSomaLocationMarkerMethods(returnedObject)
           this.serverURL = this.mapImp.makeServerUrl('').slice(0, -1)
           let mapVersion = this.mapImp.details.version
           this.setFlightPathInfo(mapVersion)
diff --git a/src/services/somaLocationMarkers.js b/src/services/somaLocationMarkers.js
new file mode 100644
index 00000000..5eb23f96
--- /dev/null
+++ b/src/services/somaLocationMarkers.js
@@ -0,0 +1,125 @@
+const SOMA_MARKER_COLOUR = '#1b7f6b'
+const SOMA_MARKER_SECONDARY_COLOUR = '#f4f1de'
+const SOMA_MARKER_TEXT_COLOUR = '#12312b'
+const SOMA_MARKER_MAX_COUNT_LABEL = '99+'
+
+const normalizeSomaLocations = function (somaLocations) {
+  return (Array.isArray(somaLocations) ? somaLocations : [])
+    .map((item) => ({
+      label: String(item?.label || '').trim(),
+      curie: String(item?.curie || '').trim(),
+      count: Number(item?.count || 0),
+    }))
+    .filter((item) => item.curie && item.count > 0)
+}
+
+const formatCount = function (count) {
+  if (count > 99) return SOMA_MARKER_MAX_COUNT_LABEL
+  return String(count)
+}
+
+const createSomaLocationMarkerElement = function (somaLocation) {
+  const wrapper = document.createElement('div')
+  wrapper.className = 'flatmapvuer-soma-location-marker'
+  wrapper.title = somaLocation.label || somaLocation.curie
+  wrapper.style.width = '34px'
+  wrapper.style.height = '48px'
+  wrapper.style.display = 'flex'
+  wrapper.style.alignItems = 'center'
+  wrapper.style.justifyContent = 'center'
+  wrapper.style.transform = 'translate(-50%, -100%)'
+
+  const countLabel = formatCount(somaLocation.count)
+  wrapper.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="-1 -1 27 42" width="34" height="48" aria-hidden="true">
+    <ellipse style="fill: rgb(0, 0, 0); fill-opacity: 0.18;" cx="12" cy="36" rx="8" ry="4"/>
+    <path d="M12.25.25a12.254 12.254 0 0 0-12 12.494
+             c0 6.444 6.488 12.109 11.059 22.564.549 1.256 1.333 1.256 1.882 0
+             C17.762 24.853 24.25 19.186 24.25 12.744A12.254 12.254 0 0 0 12.25.25Z"
+          style="fill:${SOMA_MARKER_COLOUR};stroke:${SOMA_MARKER_SECONDARY_COLOUR};stroke-width:1.1"/>
+    <circle cx="12.5" cy="12.5" r="8" fill="${SOMA_MARKER_SECONDARY_COLOUR}"/>
+    <text x="12.5" y="16.1" text-anchor="middle" style="font-size:7.5px;font-weight:700;fill:${SOMA_MARKER_TEXT_COLOUR};font-family:Arial, sans-serif">${countLabel}</text>
+  </svg>`
+
+  return wrapper
+}
+
+const resolveMarkerPlacement = function (mapImp, curie) {
+  const featureIds = Array.isArray(mapImp?.modelFeatureIds?.(curie)) ? mapImp.modelFeatureIds(curie) : []
+  const placements = []
+  const seenFeatureUris = new Set()
+
+  for (const featureId of featureIds) {
+    const annotation = mapImp.annotation(featureId)
+    const featureUri = String(annotation?.uri || '').trim()
+    if (featureUri && !seenFeatureUris.has(featureUri)) {
+      seenFeatureUris.add(featureUri)
+      placements.push({
+        type: 'feature-uri',
+        value: featureUri,
+      })
+    }
+  }
+
+  // Fall back to model placement only when no feature URI can be resolved.
+  if (!placements.length && featureIds.length) {
+    placements.push({
+      type: 'model',
+      value: curie,
+    })
+  }
+
+  return placements
+}
+
+export const attachSomaLocationMarkerMethods = function (mapImp) {
+  if (!mapImp || mapImp.addSomaLocationMarkers) {
+    return mapImp
+  }
+
+  let markerIds = []
+
+  mapImp.clearSomaLocationMarkers = function () {
+    markerIds.forEach((markerId) => {
+      mapImp.removeMarker(markerId)
+    })
+    markerIds = []
+  }
+
+  mapImp.addSomaLocationMarkers = function (somaLocations) {
+    const normalizedSomaLocations = normalizeSomaLocations(somaLocations)
+    const placedSomaLocations = []
+
+    mapImp.clearSomaLocationMarkers()
+
+    normalizedSomaLocations.forEach((somaLocation) => {
+      const placements = resolveMarkerPlacement(mapImp, somaLocation.curie)
+      if (!placements.length) return
+
+      let somaLocationPlaced = false
+      placements.forEach((placement) => {
+        const markerElement = createSomaLocationMarkerElement(somaLocation)
+        let addedMarkerIds = []
+
+        if (placement.type === 'feature-uri') {
+          addedMarkerIds = mapImp.addMarkerByFeatureUri(placement.value, { element: markerElement })
+        } else if (placement.type === 'model') {
+          const markerId = mapImp.addMarker(placement.value, { element: markerElement })
+          addedMarkerIds = markerId > -1 ? [markerId] : []
+        }
+
+        if (!addedMarkerIds.length) return
+
+        markerIds.push(...addedMarkerIds)
+        somaLocationPlaced = true
+      })
+
+      if (somaLocationPlaced) {
+        placedSomaLocations.push(somaLocation)
+      }
+    })
+
+    return placedSomaLocations
+  }
+
+  return mapImp
+}