CompaniesTableSeeder.php

<?php

class CompaniesTableSeeder extends Seeder {

	public function run()
	{
		DB::table('companies')->delete();

		$faker = Faker\Factory::create();

		foreach(range(1, 1000) as $index)
		{
			$users = User::orderByRaw("RAND()")->first();
			Company::create([
				'owner_id' 	=> $user->id,
				'name' 		=> $faker->company,
				'created_at'	=> $faker->dateTime($max = 'now')
			]);
		}
	}

}