diff --git a/backend/src/models/contact.go b/backend/src/models/contact.go
index 0ab56825..3d904c91 100644
--- a/backend/src/models/contact.go
+++ b/backend/src/models/contact.go
@@ -8,7 +8,6 @@ import (
 
 type ContactPhone struct {
 	Phone string `json:"phone" bson:"phone"`
-	Valid bool   `json:"valid" bson:"valid"`
 }
 
 type ContactSocials struct {
@@ -22,7 +21,6 @@ type ContactSocials struct {
 type ContactMail struct {
 	Mail     string `json:"mail" bson:"mail"`
 	Personal bool   `json:"personal" bson:"personal"`
-	Valid    bool   `json:"valid" bson:"valid"`
 }
 
 type Gender string
@@ -51,11 +49,11 @@ type Contact struct {
 	Mails   []ContactMail  `json:"mails" bson:"mails"`
 }
 
-// HasPhone (phone) returns true if contact has a valid phone
+// HasPhone (phone) returns true if contact has a phone
 // number that is a case insensitive partial match to `phone`
 func (c *Contact) HasPhone(p string) bool {
 	for _, s := range c.Phones {
-		if strings.Contains(strings.ToLower(s.Phone), strings.ToLower(p)) && s.Valid {
+		if strings.Contains(strings.ToLower(s.Phone), strings.ToLower(p)) {
 			return true
 		}
 	}
@@ -66,7 +64,7 @@ func (c *Contact) HasPhone(p string) bool {
 // that is a case insensitive partial match to `mail`
 func (c *Contact) HasMail(m string) bool {
 	for _, s := range c.Mails {
-		if strings.Contains(strings.ToLower(s.Mail), strings.ToLower(m)) && s.Valid {
+		if strings.Contains(strings.ToLower(s.Mail), strings.ToLower(m)) {
 			return true
 		}
 	}
diff --git a/backend/src/router/contacts_test.go b/backend/src/router/contacts_test.go
index 4ee0df7c..5731fe03 100644
--- a/backend/src/router/contacts_test.go
+++ b/backend/src/router/contacts_test.go
@@ -17,7 +17,6 @@ var (
 	Contact1      *models.Contact
 	Contact1Phone = models.ContactPhone{
 		Phone: "1",
-		Valid: true,
 	}
 	Contact1Socials = models.ContactSocials{
 		Facebook: "facebook",
@@ -29,7 +28,6 @@ var (
 	Contact1Mail = models.ContactMail{
 		Mail:     "2",
 		Personal: true,
-		Valid:    true,
 	}
 	Contact1Data = mongodb.CreateContactData{
 		Phones:  append(make([]models.ContactPhone, 0), Contact1Phone),
@@ -39,7 +37,6 @@ var (
 	Contact2      *models.Contact
 	Contact2Phone = models.ContactPhone{
 		Phone: "3",
-		Valid: true,
 	}
 	Contact2Socials = models.ContactSocials{
 		Facebook: "facebook2",
@@ -51,7 +48,6 @@ var (
 	Contact2Mail = models.ContactMail{
 		Mail:     "4",
 		Personal: true,
-		Valid:    true,
 	}
 	Contact2Data = mongodb.CreateContactData{
 		Phones:  append(make([]models.ContactPhone, 0), Contact2Phone),
diff --git a/frontend/src/components/ContactCard.vue b/frontend/src/components/ContactCard.vue
index f4cae330..606a7084 100644
--- a/frontend/src/components/ContactCard.vue
+++ b/frontend/src/components/ContactCard.vue
@@ -122,10 +122,7 @@
                         <ClipboardIcon class="w-4 h-4" />
                       </template>
                     </Button>
-                    <div
-                      v-if="mail.personal || !mail.valid"
-                      class="flex gap-1 flex-shrink-0"
-                    >
+                    <div v-if="mail.personal" class="flex gap-1 flex-shrink-0">
                       <Badge
                         v-if="mail.personal"
                         variant="secondary"
@@ -133,13 +130,6 @@
                       >
                         Personal
                       </Badge>
-                      <Badge
-                        v-if="!mail.valid"
-                        variant="destructive"
-                        class="text-xs"
-                      >
-                        Invalid
-                      </Badge>
                     </div>
                   </div>
                   <div v-if="copyError" class="text-xs text-destructive mt-1">
@@ -168,15 +158,6 @@
                     >
                       {{ phone.phone }}
                     </a>
-                    <div v-if="!phone.valid" class="flex gap-1 flex-shrink-0">
-                      <Badge
-                        v-if="!phone.valid"
-                        variant="destructive"
-                        class="text-xs"
-                      >
-                        Invalid
-                      </Badge>
-                    </div>
                   </div>
                 </div>
               </div>
diff --git a/frontend/src/components/ParticipationsCard.vue b/frontend/src/components/ParticipationsCard.vue
index 8d143a6a..1215c4b0 100644
--- a/frontend/src/components/ParticipationsCard.vue
+++ b/frontend/src/components/ParticipationsCard.vue
@@ -1,63 +1,44 @@
 <template>
   <Card class="w-full py-0">
-    <CardHeader class="w-full">
-      <Accordion type="single" collapsible class="w-full">
-        <AccordionItem value="participations">
-          <AccordionTrigger class="text-lg font-semibold px-0 cursor-pointer">
-            Participations
-          </AccordionTrigger>
-          <AccordionContent class="px-0">
-            <div
-              v-if="sortedParticipations.length === 0"
-              class="text-muted-foreground p-4"
-            >
-              No participations found.
-            </div>
-            <div v-else class="space-y-4">
-              <!-- Current participation - Editable or Create -->
-              <div v-if="currentParticipation">
-                <div class="flex items-center gap-2 mb-3">
-                  <h4 class="text-sm font-medium text-muted-foreground">
-                    Current
-                  </h4>
-                </div>
-                <EditableCompanyParticipation
-                  v-if="isCompanyParticipation(currentParticipation)"
-                  :participation="currentParticipation"
-                  :company-id="entityId"
-                />
-                <EditableSpeakerParticipation
-                  v-else-if="isSpeakerParticipation(currentParticipation)"
-                  :participation="currentParticipation"
-                  :speaker-id="entityId"
-                />
-              </div>
-
-              <!-- Create participation if no current participation exists -->
-              <div v-else-if="getCurrentEvent()">
-                <div class="flex items-center gap-2 mb-3">
-                  <h4 class="text-sm font-medium text-muted-foreground">
-                    Current
-                  </h4>
-                </div>
-
-                <EmptyStateCard
-                  title="Create Participation"
-                  :description="`Click to participate in ${getEventName(getCurrentEvent()?.id || 0)}`"
-                  :loading="isCreatingParticipation"
-                  loading-text="Creating..."
-                  @click="createParticipation"
-                />
-              </div>
-
-              <!-- Past participations - Read-only -->
-              <div v-if="pastParticipations.length > 0">
-                <h4
-                  v-if="currentParticipation || getCurrentEvent()"
-                  class="text-sm font-medium text-muted-foreground mb-3 mt-6"
-                >
-                  Past Participations
-                </h4>
+    <CardHeader :class="['pt-6', { 'pb-6': pastParticipations.length === 0 }]">
+      <h2 class="text-lg font-semibold mb-4">Participations</h2>
+      <div v-if="sortedParticipations.length > 0" class="space-y-4">
+        <div v-if="currentParticipation">
+          <div class="flex items-center gap-2 mb-3">
+            <h4 class="text-sm font-medium text-muted-foreground">Current</h4>
+          </div>
+          <EditableCompanyParticipation
+            v-if="isCompanyParticipation(currentParticipation)"
+            :participation="currentParticipation"
+            :company-id="entityId"
+          />
+          <EditableSpeakerParticipation
+            v-else-if="isSpeakerParticipation(currentParticipation)"
+            :participation="currentParticipation"
+            :speaker-id="entityId"
+          />
+        </div>
+        <div v-else-if="getCurrentEvent()">
+          <div class="flex items-center gap-2 mb-3">
+            <h4 class="text-sm font-medium text-muted-foreground">Current</h4>
+          </div>
+          <EmptyStateCard
+            title="Create Participation"
+            :description="`Click to participate in ${getEventName(getCurrentEvent()?.id || 0)}`"
+            :loading="isCreatingParticipation"
+            loading-text="Creating..."
+            @click="createParticipation"
+          />
+        </div>
+        <div v-if="pastParticipations.length > 0">
+          <Accordion type="single" collapsible class="w-full">
+            <AccordionItem value="pastParticipations">
+              <AccordionTrigger
+                class="text-sm font-semibold px-0 cursor-pointer"
+              >
+                Past Participations
+              </AccordionTrigger>
+              <AccordionContent class="px-0 pt-4">
                 <div class="space-y-4">
                   <Card
                     v-for="participation in pastParticipations"
@@ -138,11 +119,14 @@
                     </div>
                   </Card>
                 </div>
-              </div>
-            </div>
-          </AccordionContent>
-        </AccordionItem>
-      </Accordion>
+              </AccordionContent>
+            </AccordionItem>
+          </Accordion>
+        </div>
+      </div>
+      <div v-else class="text-muted-foreground p-4">
+        No participations found.
+      </div>
     </CardHeader>
   </Card>
 </template>
diff --git a/frontend/src/components/cards/WorkflowCard.vue b/frontend/src/components/cards/WorkflowCard.vue
index 0a82461f..628e1ed4 100644
--- a/frontend/src/components/cards/WorkflowCard.vue
+++ b/frontend/src/components/cards/WorkflowCard.vue
@@ -78,65 +78,69 @@ watch(
 </script>
 
 <template>
-  <Card
-    :class="[
-      'ring',
-      'h-full',
-      'relative',
-      participationStatusColor[selectedStatus].ring,
-    ]"
+  <component
+    :is="props.to ? 'RouterLink' : 'div'"
+    :to="props.to"
+    :class="['block', props.to ? 'cursor-pointer' : '']"
   >
-    <!-- Confetti explosion for accepted/announced states -->
-    <div
-      v-if="showConfetti"
-      class="absolute left-1/2 top-1/2 pointer-events-none z-50 -translate-x-1/2 -translate-y-1/2"
+    <Card
+      :class="[
+        'ring',
+        'h-full',
+        'relative',
+        participationStatusColor[selectedStatus].ring,
+      ]"
     >
-      <ConfettiExplosion />
-    </div>
+      <div
+        v-if="showConfetti"
+        class="absolute left-1/2 top-1/2 pointer-events-none z-50 -translate-x-1/2 -translate-y-1/2"
+      >
+        <ConfettiExplosion />
+      </div>
 
-    <CardContent>
-      <Select v-model="selectedStatus" class="relative z-10">
-        <SelectTrigger
+      <CardContent>
+        <div
+          v-if="!possibleStates.length"
           :class="[
-            'w-full',
+            'w-full flex items-center rounded-md border bg-transparent px-3 py-2 text-sm shadow-xs pointer-events-none',
             participationStatusColor[selectedStatus].background,
           ]"
         >
-          <SelectValue placeholder="State">
-            {{ humanReadableParticipationStatus[selectedStatus] }}
-          </SelectValue>
-        </SelectTrigger>
-        <SelectContent v-if="possibleStates.length">
-          <SelectItem
-            v-for="(state, i) in possibleStates"
-            :key="state"
-            :value="i + 1"
+          {{ humanReadableParticipationStatus[selectedStatus] }}
+        </div>
+        <Select v-else v-model="selectedStatus" class="relative z-10">
+          <SelectTrigger
+            :class="[
+              'w-full',
+              participationStatusColor[selectedStatus].background,
+            ]"
           >
-            {{ humanReadableParticipationStatus[state] }}
-          </SelectItem>
-        </SelectContent>
-      </Select>
+            <SelectValue placeholder="State">
+              {{ humanReadableParticipationStatus[selectedStatus] }}
+            </SelectValue>
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem
+              v-for="(state, i) in possibleStates"
+              :key="state"
+              :value="i + 1"
+            >
+              {{ humanReadableParticipationStatus[state] }}
+            </SelectItem>
+          </SelectContent>
+        </Select>
 
-      <component
-        :is="props.to ? 'RouterLink' : 'div'"
-        :to="props.to"
-        :class="['block w-full', props.to ? 'cursor-pointer' : '']"
-      >
-        <Image
-          :src="image"
-          class="w-full h-32 object-contain rounded-lg pt-2"
-        />
-      </component>
-    </CardContent>
-    <component
-      :is="props.to ? 'RouterLink' : 'div'"
-      :to="props.to"
-      :class="['block', props.to ? 'cursor-pointer' : '']"
-    >
+        <div class="block w-full">
+          <Image
+            :src="image"
+            class="w-full h-32 object-contain rounded-lg pt-2"
+          />
+        </div>
+      </CardContent>
       <CardHeader>
         <CardTitle>{{ title }}</CardTitle>
         <Badge v-if="badge">{{ badge }}</Badge>
       </CardHeader>
-    </component>
-  </Card>
+    </Card>
+  </component>
 </template>
diff --git a/frontend/src/components/companies/ContactForm.vue b/frontend/src/components/companies/ContactForm.vue
index 44311468..67d7a877 100644
--- a/frontend/src/components/companies/ContactForm.vue
+++ b/frontend/src/components/companies/ContactForm.vue
@@ -316,8 +316,8 @@ const formData = reactive<Required<CreateCompanyRepData>>({
   contact: {
     gender: undefined,
     language: undefined,
-    mails: [{ mail: "", personal: false, valid: true }],
-    phones: [{ phone: "", valid: true }],
+    mails: [{ mail: "", personal: false }],
+    phones: [{ phone: "" }],
     socials: {
       linkedin: "",
       twitter: "",
@@ -339,11 +339,11 @@ watch(
       formData.contact.mails =
         newData.contact.mails.length > 0
           ? [...newData.contact.mails]
-          : [{ mail: "", personal: false, valid: true }];
+          : [{ mail: "", personal: false }];
       formData.contact.phones =
         newData.contact.phones.length > 0
           ? [...newData.contact.phones]
-          : [{ phone: "", valid: true }];
+          : [{ phone: "" }];
       formData.contact.socials = { ...newData.contact.socials };
     }
   },
@@ -370,7 +370,7 @@ const validationMessage = computed(() => {
 });
 
 const addEmail = () => {
-  formData.contact.mails.push({ mail: "", personal: false, valid: true });
+  formData.contact.mails.push({ mail: "", personal: false });
 };
 
 const removeEmail = (index: number) => {
@@ -378,7 +378,7 @@ const removeEmail = (index: number) => {
 };
 
 const addPhone = () => {
-  formData.contact.phones.push({ phone: "", valid: true });
+  formData.contact.phones.push({ phone: "" });
 };
 
 const removePhone = (index: number) => {
diff --git a/frontend/src/components/companies/CreateCompanyForm.vue b/frontend/src/components/companies/CreateCompanyForm.vue
index 64529b73..952d61d6 100644
--- a/frontend/src/components/companies/CreateCompanyForm.vue
+++ b/frontend/src/components/companies/CreateCompanyForm.vue
@@ -437,7 +437,6 @@ const addEmail = (repIndex: number) => {
   representatives.value[repIndex].contact!.mails.push({
     mail: "",
     personal: false,
-    valid: true,
   });
 };
 
@@ -448,7 +447,6 @@ const removeEmail = (repIndex: number, emailIndex: number) => {
 const addPhone = (repIndex: number) => {
   representatives.value[repIndex].contact!.phones.push({
     phone: "",
-    valid: true,
   });
 };
 
diff --git a/frontend/src/components/companies/RepresentativeForm.vue b/frontend/src/components/companies/RepresentativeForm.vue
index 8adbf2f6..106e6740 100644
--- a/frontend/src/components/companies/RepresentativeForm.vue
+++ b/frontend/src/components/companies/RepresentativeForm.vue
@@ -240,8 +240,8 @@ const showMoreSocials = ref(false);
 const formData = reactive<Required<CreateCompanyRepData>>({
   name: "",
   contact: {
-    mails: [{ mail: "", personal: false, valid: true }],
-    phones: [{ phone: "", valid: true }],
+    mails: [{ mail: "", personal: false }],
+    phones: [{ phone: "" }],
     socials: {
       linkedin: "",
       twitter: "",
@@ -266,7 +266,7 @@ const validationMessage = computed(() => {
 });
 
 const addEmail = () => {
-  formData.contact.mails.push({ mail: "", personal: false, valid: true });
+  formData.contact.mails.push({ mail: "", personal: false });
 };
 
 const removeEmail = (index: number) => {
@@ -274,7 +274,7 @@ const removeEmail = (index: number) => {
 };
 
 const addPhone = () => {
-  formData.contact.phones.push({ phone: "", valid: true });
+  formData.contact.phones.push({ phone: "" });
 };
 
 const removePhone = (index: number) => {
diff --git a/frontend/src/dto/contacts.ts b/frontend/src/dto/contacts.ts
index 19172ac9..baf32306 100644
--- a/frontend/src/dto/contacts.ts
+++ b/frontend/src/dto/contacts.ts
@@ -2,7 +2,6 @@ import type { ObjectID } from ".";
 
 export interface ContactPhone {
   phone: string;
-  valid: boolean;
 }
 
 export interface ContactSocials {
@@ -16,7 +15,6 @@ export interface ContactSocials {
 export interface ContactMail {
   mail: string;
   personal: boolean;
-  valid: boolean;
 }
 
 export enum Gender {
diff --git a/frontend/src/views/Dashboard/SettingsView.vue b/frontend/src/views/Dashboard/SettingsView.vue
index 6a0ae7be..fce849e5 100644
--- a/frontend/src/views/Dashboard/SettingsView.vue
+++ b/frontend/src/views/Dashboard/SettingsView.vue
@@ -130,13 +130,6 @@
                         >
                           Personal
                         </Badge>
-                        <Badge
-                          v-if="!mail.valid"
-                          variant="destructive"
-                          class="text-xs"
-                        >
-                          Invalid
-                        </Badge>
                       </div>
                     </div>
                   </div>
@@ -162,13 +155,6 @@
                       >
                         {{ phone.phone }}
                       </a>
-                      <Badge
-                        v-if="!phone.valid"
-                        variant="destructive"
-                        class="text-xs"
-                      >
-                        Invalid
-                      </Badge>
                     </div>
                   </div>
                 </div>