Welcome Leitz Out Concepts Inc. Leitz Out Concepts Inc. is a unique outsourced sales and marketing firm with a management development concept. We are face to face so we can exchange handshakes and smiles. In our management development program we advocate team players with an accent in teaching and learning. Because we work with fortune 500 companies we believe in building a firm foundation to accelerate growth quickly among our business partners. We are developing our business partners of the future.