Twinco's mission is to manufacture and deliver high quality and competitively priced products that fulfill our customers requirements. We do this by adhering to the following philosophies in our company:


Customer: We work to satisfy the customer. If we don't take care of the customer, somebody else will.

Quality: We will perform and control as much of the manufacturing process as possible. True quality is designed, manufactured and controlled, not merely inspected, into a product.

Productivity: We invest in the best and most modern facilities and equipment to enable our employees to be as productive as possible.

Improvement: We believe in the process of continuous improvement. It is the relentless quest for a better way, the challenge of higher quality craftsmanship. It is not perfection but rather the pursuit of it.

Teamwork: We strive to work together as a spirited team in an environment of trust, cooperation, mutual respect, understanding and support of the needs of others.

Ethics: We strive to maintain the highest standards of honesty and integrity in all facets of our activities.


Twinco's name has been a "well kept secret" in the signal business. In fact, you've been using parts manufactured by us for decades without even knowing it.

From AREMA (AAR) Terminal Harware to Vital Relay components, we have produced over 1500 different parts during the past 40 years. Let us be the answer to all your manufacturing needs.