Mada Seghete discusses maintaining culture at Branch, which has grown to 500+ employees across 14 offices in 10 countries with a $4B valuation in 8 years. She emphasizes that culture is expressed through employee and manager actions without supervision. To create culture, companies must start early and iterate on culture as they grow. Companies can use levers like values, hiring, onboarding, awards, celebrations, office space, reviews, and communications to shape culture intentionally. Leaders must stick to values in all situations, like adapting to remote work while maintaining values or conducting layoffs respectfully.