Database relations and conditional unique key

Hi All, this is my first post here so please excuse me if format is incorrect.

I'm developing small API back end for my webapp and looking for solution to following problem: I have 3 tables: Users:

        Schema::create('users', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->string('email')->unique();
            $table->timestamp('email_verified_at')->nullable();
            $table->string('password');
            $table->unsignedBigInteger('owner_id')->nullable();
            $table->timestamps();
            $table->foreign('owner_id')->references('id')->on('companies');
        });

Customers:

        Schema::create('customers', function (Blueprint $table) {
            $table->id();
            $table->string('customer_name')->unique();
            $table->timestamps();
            $table->unsignedBigInteger('owner_id');
            $table->foreign('owner_id')->references('id')->on('companies');
        });

Companies:

        Schema::create('companies', function (Blueprint $table) {
            $table->id();
            $table->string('name')->unique();
            $table->timestamps();
        });

I want to be able to customer table to have unique name column but for individual foreign key on owner_id. For example: There can be two customers with the same name but different foreign key.

Thank you for any suggestions, if this is not possible I would appreciate to point me to right direction to accomplish this, thank you!