Over 120 years of building trust

Providing insurance solutions that mitigate risk and provide stability
&   peace of mind in a rapidly changing world

Our Commitment

Our company history spans 122 years and is distinguished by quality service and strong ethical conduct, which continues to serve as the foundation for our success. We provide solutions that exceed client expectations and surpass the industry standard. We recognize the value of a lifetime client and will strive to continue to establish relationships that endure the test of time.


History, experience, service-oriented employees, and professional loss control programs are what differentiate Sanger & Altgelt from any other insurance agency. With a focus on integrity and long-lasting business relationships, Sanger & Altgelt has been building a brand based on the hallmark of trust for over 120 years.

The story began in 1852 when Ernst Hermann Altgelt emigrated from Germany and made his way to San Antonio, where he established his prominence in the real estate industry. Just after the turn of the century, the Altgelt family formed a partnership with Will Sanger, co-founding one of the pioneer insurance agencies in South Texas. Sanger was the owner of a small insurance agency he had founded in 1900, and with the partnership, the company began doing business as Sanger & Altgelt.

In 1947, after serving in the European theater at the end of World War II, Woodward W. Altgelt Jr., joined the agency, leading the development of its reputation for business integrity and civic engagement. Three years later, the Sanger family sold their interests in the partnership and the Altgelts became the owners and principals of the agency.

The company has remained in the Altgelt family for generations. W.W. Altgelt Jr. later sold the business to his daughter, Christine Altgelt Haynes, her husband, Joe Haynes, who had joined him. In 1998, Heather Haynes joined her parents at the company, serving eventually as commercial lines manager and today as president. Mac Altgelt, W.W. Altgeltā€™s great-grandson, later joined the business and was named CEO. In 2011, a merger brought Sanger & Altgelt together with another longtime, family-owned San Antonio institution, Jefferson Bank.

Since 1900, Sanger & Altgelt has conducted business with a personal focus and offered its customers, individuals, and businesses alike, the highest level of quality service and insurance to protect their assets with cost-effective solutions. As a new millennium unfolds, Sanger & Altgelt continues to leverage a staff of talented and dedicated employees with extensive experience and the agency’s broad assets to deliver value-added products and services to a growing clientele. Sanger & Altgelt has proven to be both a successful business model and a foundation for building trust.