diff --git a/about-us.html b/about-us.html
index d429cec..d49396c 100644
--- a/about-us.html
+++ b/about-us.html
@@ -453,6 +453,21 @@ <h4 class="title mb-0">Sermisha Narayana</h4>
                     </div>
                 </div><!--end col-->
 
+                <div class="col-lg-3 col-md-6 col-12 mt-4 pt-2">
+                    <div class="team text-center rounded p-3 py-4">
+                        <img src="assets/img/people/MarioDzamarijaCropped.jpg" class="img-fluid avatar avatar-medium shadow rounded-pill" alt="">
+                        <div class="content mt-3">
+                            <h4 class="title mb-0">Dr. Mario Dzamarija</h4>
+                            <small class="text-muted">Energy Systems Modeller</small>
+                            <ul class="list-unstyled mt-3 social-icon social mb-0">
+                                <li class="list-inline-item"><a href="mailto:mario.dzamarija@openenergytransition.org" class="rounded"><i class="bi bi-envelope" title="Email"></i></a></li>
+                                <li class="list-inline-item"><a href="https://www.linkedin.com/in/mdzzg" class="rounded"><i class="mdi mdi-linkedin" title="Linkedin"></i></a></li>
+                                <li class="list-inline-item"><a href="https://github.com/mdzzg" class="rounded"><i class="bi bi-github" title="GitHub"></i></a></li>
+                            </ul><!--end icon-->
+                        </div>
+                    </div>
+                </div><!--end col-->
+                
                 <div class="col-lg-3 col-md-6 col-12 mt-4 pt-2">
                     <div class="team text-center rounded p-3 py-4">
                         <img src="assets/img/people/marthasnoopy_cropped.jpg" class="img-fluid avatar avatar-medium shadow rounded-pill" alt="">
diff --git a/assets/img/people/MarioDzamarijaCropped.jpg b/assets/img/people/MarioDzamarijaCropped.jpg
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