<div class="pledged-support">
  <div class="content">
    <p class="joined">В инициативата участват</p>
    <ul class="companies">
      <% @companies.each do |company| %>
        <li>
          <% if company.url.present? %>
            <%= link_to company.url, target: '_blank', rel: 'nofollow', class: 'company' do %>
              <%= image_tag company.logo.url(:small), alt: company.name, title: company.name %>
            <% end %>
          <% else %>
            <%= image_tag company.logo.url(:small), alt: company.name, title: company.name %>
          <% end %>
        </li>
      <% end %>
    </ul>

    <p class="join-us">
      <%= link_to 'А вие? Пишете ни →', contacts_path, class: 'btn light' %>
    </p>
  </div>
</div>

<div class="pledged-support">
  <div class="content">
    <p class="joined">В инициативата участват</p>
    <ul class="companies">
      <% @companies.each do |company| %>
        <li>
          <% if company.url.present? %>
            <%= link_to company.url, target: '_blank', rel: 'nofollow', class: 'company' do %>
              <%= image_tag company.logo.url(:medium), alt: company.name, title: company.name %>
            <% end %>
          <% else %>
            <%= image_tag company.logo.url(:medium), alt: company.name, title: company.name %>
          <% end %>
        </li>
      <% end %>
    </ul>

    <p class="join-us">
      <%= link_to 'А вие? Пишете ни →', contacts_path, class: 'btn light' %>
    </p>
  </div>
</div>

Use a larger logo for supporter companies on the homepage
Use a larger logo for supporter companies on the homepage

Some logos are too wide and the small size is not enough.
