diff --git a/v2_adminpanel/leads/repositories.py b/v2_adminpanel/leads/repositories.py
index 8859907..a08141a 100644
--- a/v2_adminpanel/leads/repositories.py
+++ b/v2_adminpanel/leads/repositories.py
@@ -295,4 +295,36 @@ class LeadRepository:
             deleted = cur.rowcount > 0
             cur.close()
             
-        return deleted
\ No newline at end of file
+        return deleted
+    
+    def get_all_contacts_with_institutions(self) -> List[Dict[str, Any]]:
+        """Get all contacts with their institution information"""
+        with self.get_db_connection() as conn:
+            cur = conn.cursor(cursor_factory=RealDictCursor)
+            
+            query = """
+                SELECT 
+                    c.id,
+                    c.first_name,
+                    c.last_name,
+                    c.position,
+                    c.created_at,
+                    c.updated_at,
+                    c.institution_id,
+                    i.name as institution_name,
+                    (SELECT COUNT(*) FROM lead_contact_details 
+                     WHERE contact_id = c.id AND detail_type = 'phone') as phone_count,
+                    (SELECT COUNT(*) FROM lead_contact_details 
+                     WHERE contact_id = c.id AND detail_type = 'email') as email_count,
+                    (SELECT COUNT(*) FROM lead_notes 
+                     WHERE contact_id = c.id AND is_current = true) as note_count
+                FROM lead_contacts c
+                JOIN lead_institutions i ON i.id = c.institution_id
+                ORDER BY c.last_name, c.first_name
+            """
+            
+            cur.execute(query)
+            results = cur.fetchall()
+            cur.close()
+            
+        return results
\ No newline at end of file
diff --git a/v2_adminpanel/leads/routes.py b/v2_adminpanel/leads/routes.py
index 97cde9c..4b60cc7 100644
--- a/v2_adminpanel/leads/routes.py
+++ b/v2_adminpanel/leads/routes.py
@@ -54,6 +54,17 @@ def contact_detail(contact_id):
         flash(f'Fehler beim Laden des Kontakts: {str(e)}', 'error')
         return redirect(url_for('leads.institutions'))
 
+@leads_bp.route('/contacts')
+@login_required
+def all_contacts():
+    """Show all contacts across all institutions"""
+    try:
+        contacts = lead_service.list_all_contacts()
+        return render_template('leads/all_contacts.html', contacts=contacts)
+    except Exception as e:
+        flash(f'Fehler beim Laden der Kontakte: {str(e)}', 'error')
+        return render_template('leads/all_contacts.html', contacts=[])
+
 # API Routes
 @leads_bp.route('/api/institutions', methods=['POST'])
 @login_required
diff --git a/v2_adminpanel/leads/services.py b/v2_adminpanel/leads/services.py
index 566b713..77c3b90 100644
--- a/v2_adminpanel/leads/services.py
+++ b/v2_adminpanel/leads/services.py
@@ -143,4 +143,8 @@ class LeadService:
         """Delete a note (soft delete)"""
         success = self.repo.delete_note(note_id)
         
-        return success
\ No newline at end of file
+        return success
+    
+    def list_all_contacts(self) -> List[Dict[str, Any]]:
+        """Get all contacts across all institutions with summary info"""
+        return self.repo.get_all_contacts_with_institutions()
\ No newline at end of file
diff --git a/v2_adminpanel/leads/templates/leads/all_contacts.html b/v2_adminpanel/leads/templates/leads/all_contacts.html
new file mode 100644
index 0000000..ecddeaa
--- /dev/null
+++ b/v2_adminpanel/leads/templates/leads/all_contacts.html
@@ -0,0 +1,239 @@
+{% extends "base.html" %}
+
+{% block title %}Alle Kontakte{% endblock %}
+
+{% block content %}
+<div class="container-fluid">
+    <div class="row mb-4">
+        <div class="col-md-8">
+            <h1 class="h2 mb-0">
+                <i class="bi bi-people"></i> Alle Kontakte
+            </h1>
+            <p class="text-muted mb-0">Übersicht aller Kontakte aus allen Institutionen</p>
+        </div>
+        <div class="col-md-4 text-end">
+            <a href="{{ url_for('leads.institutions') }}" class="btn btn-secondary">
+                <i class="bi bi-building"></i> Zu Institutionen
+            </a>
+        </div>
+    </div>
+
+    <!-- Search and Filter Bar -->
+    <div class="row mb-4">
+        <div class="col-md-6">
+            <div class="input-group">
+                <span class="input-group-text"><i class="bi bi-search"></i></span>
+                <input type="text" class="form-control" id="searchInput" 
+                       placeholder="Nach Name, Institution oder Position suchen..." 
+                       onkeyup="filterContacts()">
+            </div>
+        </div>
+        <div class="col-md-3">
+            <select class="form-select" id="institutionFilter" onchange="filterContacts()">
+                <option value="">Alle Institutionen</option>
+                {% set institutions = contacts | map(attribute='institution_name') | unique | sort %}
+                {% for institution in institutions %}
+                <option value="{{ institution }}">{{ institution }}</option>
+                {% endfor %}
+            </select>
+        </div>
+        <div class="col-md-3">
+            <div class="btn-group" role="group">
+                <button type="button" class="btn btn-outline-secondary" onclick="sortContacts('name')">
+                    <i class="bi bi-sort-alpha-down"></i> Name
+                </button>
+                <button type="button" class="btn btn-outline-secondary" onclick="sortContacts('institution')">
+                    <i class="bi bi-building"></i> Institution
+                </button>
+                <button type="button" class="btn btn-outline-secondary" onclick="sortContacts('updated')">
+                    <i class="bi bi-clock"></i> Aktualisiert
+                </button>
+            </div>
+        </div>
+    </div>
+
+    <!-- Contacts Table -->
+    <div class="card">
+        <div class="card-body">
+            <div class="table-responsive">
+                <table class="table table-hover" id="contactsTable">
+                    <thead>
+                        <tr>
+                            <th>Name</th>
+                            <th>Institution</th>
+                            <th>Position</th>
+                            <th>Kontaktdaten</th>
+                            <th>Notizen</th>
+                            <th>Zuletzt aktualisiert</th>
+                            <th>Aktionen</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        {% for contact in contacts %}
+                        <tr data-name="{{ contact.last_name }} {{ contact.first_name }}" 
+                            data-institution="{{ contact.institution_name }}"
+                            data-updated="{{ contact.updated_at or contact.created_at }}">
+                            <td>
+                                <a href="{{ url_for('leads.contact_detail', contact_id=contact.id) }}" 
+                                   class="text-decoration-none">
+                                    <strong>{{ contact.last_name }}, {{ contact.first_name }}</strong>
+                                </a>
+                            </td>
+                            <td>
+                                <a href="{{ url_for('leads.institution_detail', institution_id=contact.institution_id) }}"
+                                   class="text-decoration-none text-muted">
+                                    {{ contact.institution_name }}
+                                </a>
+                            </td>
+                            <td>{{ contact.position or '-' }}</td>
+                            <td>
+                                {% if contact.phone_count > 0 %}
+                                <span class="badge bg-info me-1" title="Telefonnummern">
+                                    <i class="bi bi-telephone"></i> {{ contact.phone_count }}
+                                </span>
+                                {% endif %}
+                                {% if contact.email_count > 0 %}
+                                <span class="badge bg-primary" title="E-Mail-Adressen">
+                                    <i class="bi bi-envelope"></i> {{ contact.email_count }}
+                                </span>
+                                {% endif %}
+                                {% if contact.phone_count == 0 and contact.email_count == 0 %}
+                                <span class="text-muted">-</span>
+                                {% endif %}
+                            </td>
+                            <td>
+                                {% if contact.note_count > 0 %}
+                                <span class="badge bg-secondary">
+                                    <i class="bi bi-sticky"></i> {{ contact.note_count }}
+                                </span>
+                                {% else %}
+                                <span class="text-muted">-</span>
+                                {% endif %}
+                            </td>
+                            <td>
+                                {{ (contact.updated_at or contact.created_at).strftime('%d.%m.%Y %H:%M') }}
+                            </td>
+                            <td>
+                                <a href="{{ url_for('leads.contact_detail', contact_id=contact.id) }}" 
+                                   class="btn btn-sm btn-outline-primary">
+                                    <i class="bi bi-eye"></i> Details
+                                </a>
+                            </td>
+                        </tr>
+                        {% endfor %}
+                    </tbody>
+                </table>
+                {% if not contacts %}
+                <div class="text-center py-4">
+                    <p class="text-muted">Noch keine Kontakte vorhanden.</p>
+                    <a href="{{ url_for('leads.institutions') }}" class="btn btn-primary">
+                        <i class="bi bi-building"></i> Zu Institutionen
+                    </a>
+                </div>
+                {% endif %}
+            </div>
+        </div>
+    </div>
+
+    <!-- Contact Count -->
+    {% if contacts %}
+    <div class="row mt-3">
+        <div class="col-12">
+            <p class="text-muted">
+                <span id="visibleCount">{{ contacts|length }}</span> von {{ contacts|length }} Kontakten angezeigt
+            </p>
+        </div>
+    </div>
+    {% endif %}
+</div>
+
+<script>
+// Current sort order
+let currentSort = { field: 'name', ascending: true };
+
+// Filter contacts
+function filterContacts() {
+    const searchTerm = document.getElementById('searchInput').value.toLowerCase();
+    const institutionFilter = document.getElementById('institutionFilter').value.toLowerCase();
+    const rows = document.querySelectorAll('#contactsTable tbody tr');
+    let visibleCount = 0;
+    
+    rows.forEach(row => {
+        const text = row.textContent.toLowerCase();
+        const institution = row.getAttribute('data-institution').toLowerCase();
+        
+        const matchesSearch = searchTerm === '' || text.includes(searchTerm);
+        const matchesInstitution = institutionFilter === '' || institution === institutionFilter;
+        
+        if (matchesSearch && matchesInstitution) {
+            row.style.display = '';
+            visibleCount++;
+        } else {
+            row.style.display = 'none';
+        }
+    });
+    
+    // Update visible count
+    const countElement = document.getElementById('visibleCount');
+    if (countElement) {
+        countElement.textContent = visibleCount;
+    }
+}
+
+// Sort contacts
+function sortContacts(field) {
+    const tbody = document.querySelector('#contactsTable tbody');
+    const rows = Array.from(tbody.querySelectorAll('tr'));
+    
+    // Toggle sort order if same field
+    if (currentSort.field === field) {
+        currentSort.ascending = !currentSort.ascending;
+    } else {
+        currentSort.field = field;
+        currentSort.ascending = true;
+    }
+    
+    // Sort rows
+    rows.sort((a, b) => {
+        let aValue, bValue;
+        
+        switch(field) {
+            case 'name':
+                aValue = a.getAttribute('data-name');
+                bValue = b.getAttribute('data-name');
+                break;
+            case 'institution':
+                aValue = a.getAttribute('data-institution');
+                bValue = b.getAttribute('data-institution');
+                break;
+            case 'updated':
+                aValue = new Date(a.getAttribute('data-updated'));
+                bValue = new Date(b.getAttribute('data-updated'));
+                break;
+        }
+        
+        if (field === 'updated') {
+            return currentSort.ascending ? aValue - bValue : bValue - aValue;
+        } else {
+            const comparison = aValue.localeCompare(bValue);
+            return currentSort.ascending ? comparison : -comparison;
+        }
+    });
+    
+    // Re-append sorted rows
+    rows.forEach(row => tbody.appendChild(row));
+    
+    // Update button states
+    document.querySelectorAll('.btn-group button').forEach(btn => {
+        btn.classList.remove('active');
+    });
+    event.target.classList.add('active');
+}
+
+// Initialize
+document.addEventListener('DOMContentLoaded', function() {
+    // Set initial sort
+    sortContacts('name');
+});
+</script>
+{% endblock %}
\ No newline at end of file
diff --git a/v2_adminpanel/leads/templates/leads/institutions.html b/v2_adminpanel/leads/templates/leads/institutions.html
index 4027981..f7a271f 100644
--- a/v2_adminpanel/leads/templates/leads/institutions.html
+++ b/v2_adminpanel/leads/templates/leads/institutions.html
@@ -14,6 +14,9 @@
             <button class="btn btn-primary" onclick="showCreateInstitutionModal()">
                 <i class="bi bi-plus-circle"></i> Neue Institution
             </button>
+            <a href="{{ url_for('leads.all_contacts') }}" class="btn btn-outline-primary">
+                <i class="bi bi-people"></i> Alle Kontakte
+            </a>
             <a href="{{ url_for('customers.customers_licenses') }}" class="btn btn-secondary">
                 <i class="bi bi-arrow-left"></i> Zurück zu Kunden
             </a>