dontpaniclabsgists

addNewAdmin(){
  this.admins.push(this.adminForm);
}

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<button type="button" (click)="addNewAdmin()">Add</button>

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<ng-container *ngFor="let adminForm of admins.controls; let index = index">
  <div>
    <input id="name" type="text" formControlName="name" />
    <input id="email" type="text" formControlName="email" />                
  </div>
</ng-container>

dontpaniclabsgists

<div [formGroup]="companyForm">
    <div>
        <label for="companyName">Company Name</label>
        <input id="companyName" type="text" formControlName="companyName" />
    </div> 
</div>  

dontpaniclabsgists

import { Component, OnInit } from '@angular/core';
import { FormArray, FormBuilder, FormControl, Validators } from '@angular/forms';

@Component({
  selector: 'app-company-view',
  templateUrl: './company-view.component.html',
  styleUrls: ['./company-view.component.scss']
})
export class CompanyViewComponent implements OnInit {

dontpaniclabsgists

get admins() {
  return this.companyForm.controls["admins"] as FormArray;
}

dontpaniclabsgists

companyForm = this.fb.group({
  companyName: new FormControl('', [Validators.required]),
  admins: this.fb.array({})
})

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constructor(private fb: FormBuilder) { }

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import { FormsModule, ReactiveFormsModule } from '@angular/forms';

dontpaniclabsgists

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-company-view',
  templateUrl: './company-view.component.html',
  styleUrls: ['./company-view.component.scss']
})
export class CompanyViewComponent implements OnInit {
  constructor(){}