exchange-2.0/app/Models/CompanyInfo.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Relations\BelongsTo;

/**
 * Class CompanyInfo
 * @package App\Models
 *
 * @property \App\Models\Company company_id
 */
class CompanyInfo extends AbstractModel
{
    protected $table = 'company_infos';

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     **/
    public function company(): BelongsTo
    {
        return $this->belongsTo(Company::class, 'company_id', 'id');
    }
}