core/app/Providers/GlobalViewDataProvider.php

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;

class GlobalViewDataProvider extends ServiceProvider
{
    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        view()->share('something', 'some value');
        view()->share('vendorName', 'ja s.r.o.');
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}