diff --git a/backend/app/api/endpoints/sessions.py b/backend/app/api/endpoints/sessions.py
index 47a238a5..ea4375f1 100644
--- a/backend/app/api/endpoints/sessions.py
+++ b/backend/app/api/endpoints/sessions.py
@@ -407,18 +407,35 @@ async def export_session(
             headers={"Content-Disposition": f'attachment; filename="session-export-{session_id}.pdf"'},
         )
 
+    # Query supporting data for non-PDF formats
+    from app.models.supporting_data import SessionSupportingData
+    sd_result = await db.execute(
+        select(SessionSupportingData)
+        .where(SessionSupportingData.session_id == session_id)
+        .order_by(SessionSupportingData.sort_order)
+    )
+    supporting_data_items = [
+        {
+            "label": sd.label,
+            "data_type": sd.data_type,
+            "content": sd.content,
+            "content_type": sd.content_type,
+        }
+        for sd in sd_result.scalars().all()
+    ]
+
     # Generate export based on format
     if export_options.format == "markdown":
-        content = generate_markdown_export(session, export_options)
+        content = generate_markdown_export(session, export_options, supporting_data=supporting_data_items)
         media_type = "text/markdown"
     elif export_options.format == "html":
-        content = generate_html_export(session, export_options)
+        content = generate_html_export(session, export_options, supporting_data=supporting_data_items)
         media_type = "text/html"
     elif export_options.format == "psa":
-        content = generate_psa_export(session, export_options)
+        content = generate_psa_export(session, export_options, supporting_data=supporting_data_items)
         media_type = "text/plain"
     else:  # text
-        content = generate_text_export(session, export_options)
+        content = generate_text_export(session, export_options, supporting_data=supporting_data_items)
         media_type = "text/plain"
 
     # Resolve variables in export output
diff --git a/backend/app/services/export_service.py b/backend/app/services/export_service.py
index 15e1426b..7d3d8091 100644
--- a/backend/app/services/export_service.py
+++ b/backend/app/services/export_service.py
@@ -171,7 +171,7 @@ def _escape_markdown_table(value: str) -> str:
     return value.replace("|", "\\|").replace("\n", " ")
 
 
-def generate_markdown_export(session: Session, options: SessionExport) -> str:
+def generate_markdown_export(session: Session, options: SessionExport, supporting_data: list[dict] | None = None) -> str:
     """Generate markdown export."""
     if _is_procedural_session(session):
         return _generate_procedural_markdown(session, options)
@@ -261,6 +261,22 @@ def generate_markdown_export(session: Session, options: SessionExport) -> str:
             lines.append(f"*{decision['timestamp']}*")
         lines.append("")
 
+    # Supporting Data
+    if supporting_data:
+        lines.append("---")
+        lines.append("")
+        lines.append("## Supporting Data")
+        lines.append("")
+        for sd in supporting_data:
+            lines.append(f"### {sd['label']}")
+            if sd["data_type"] == "text_snippet":
+                lines.append("```")
+                lines.append(sd["content"])
+                lines.append("```")
+            else:
+                lines.append(f"[Screenshot: {sd['label']}]")
+            lines.append("")
+
     # Resolution / Outcome Notes
     _raw_notes = getattr(session, 'outcome_notes', None)
     outcome_notes = _raw_notes if isinstance(_raw_notes, str) else ''
@@ -286,7 +302,7 @@ def generate_markdown_export(session: Session, options: SessionExport) -> str:
     return "\n".join(lines)
 
 
-def generate_text_export(session: Session, options: SessionExport) -> str:
+def generate_text_export(session: Session, options: SessionExport, supporting_data: list[dict] | None = None) -> str:
     """Generate plain text export."""
     if _is_procedural_session(session):
         return _generate_procedural_text(session, options)
@@ -361,6 +377,19 @@ def generate_text_export(session: Session, options: SessionExport) -> str:
         if duration_seconds is not None:
             lines.append(f"   Duration: {_format_step_duration(duration_seconds)}")
 
+    # Supporting Data
+    if supporting_data:
+        lines.append("")
+        lines.append("SUPPORTING DATA")
+        lines.append("-" * 20)
+        for sd in supporting_data:
+            lines.append(f"\n  {sd['label']}:")
+            if sd["data_type"] == "text_snippet":
+                for content_line in sd["content"].splitlines():
+                    lines.append(f"    {content_line}")
+            else:
+                lines.append(f"    [Screenshot: {sd['label']}]")
+
     # Resolution
     _raw_notes = getattr(session, 'outcome_notes', None)
     outcome_notes = _raw_notes if isinstance(_raw_notes, str) else ''
@@ -382,7 +411,7 @@ def generate_text_export(session: Session, options: SessionExport) -> str:
     return "\n".join(lines)
 
 
-def generate_html_export(session: Session, options: SessionExport) -> str:
+def generate_html_export(session: Session, options: SessionExport, supporting_data: list[dict] | None = None) -> str:
     """Generate HTML export."""
     if _is_procedural_session(session):
         return _generate_procedural_html(session, options)
@@ -472,6 +501,15 @@ def generate_html_export(session: Session, options: SessionExport) -> str:
             html_parts.append(f'<p class="timestamp">{html.escape(str(decision["timestamp"]))}</p>')
         html_parts.append('</div>')
 
+    # Supporting Data
+    if supporting_data:
+        html_parts.append('<h2>Supporting Data</h2>')
+        for sd in supporting_data:
+            if sd["data_type"] == "text_snippet":
+                html_parts.append(f'<div class="supporting-item"><h3>{html.escape(sd["label"])}</h3><pre>{html.escape(sd["content"])}</pre></div>')
+            else:
+                html_parts.append(f'<div class="supporting-item"><h3>{html.escape(sd["label"])}</h3><img src="data:{html.escape(sd.get("content_type") or "image/png")};base64,{sd["content"]}" alt="{html.escape(sd["label"])}"></div>')
+
     # Resolution
     _raw_notes = getattr(session, 'outcome_notes', None)
     outcome_notes = _raw_notes if isinstance(_raw_notes, str) else ''
@@ -490,7 +528,7 @@ def generate_html_export(session: Session, options: SessionExport) -> str:
     return "\n".join(html_parts)
 
 
-def generate_psa_export(session: Session, options: SessionExport) -> str:
+def generate_psa_export(session: Session, options: SessionExport, supporting_data: list[dict] | None = None) -> str:
     """Generate PSA/ticket note export optimized for ConnectWise and similar PSA tools."""
     if _is_procedural_session(session):
         return _generate_procedural_psa(session, options)
@@ -561,6 +599,19 @@ def generate_psa_export(session: Session, options: SessionExport) -> str:
         lines.append("No steps recorded.")
     lines.append("")
 
+    # Supporting Data
+    if supporting_data:
+        lines.append("--- SUPPORTING DATA ---")
+        for sd in supporting_data:
+            if sd["data_type"] == "text_snippet":
+                lines.append(f"## {sd['label']}")
+                lines.append("```")
+                lines.append(sd["content"])
+                lines.append("```")
+            else:
+                lines.append(f"[Screenshot: {sd['label']}]")
+        lines.append("")
+
     # Resolution — only for completed sessions
     if session.completed_at:
         lines.append("--- RESOLUTION ---")