Tierzero: Los Angeles Business Internet & VoIP Since 1997

Tierzero was founded in 1997 by a team of business owners in Los Angeles who were frustrated with unreliable internet service and unresponsive national carriers. Rather than accept the status quo, they built their own ISP — designed from the ground up to serve business customers. From day one, everything was local: a local team, local infrastructure based in Pasadena, and a commitment to knowing every customer by name.

Today, Tierzero delivers dedicated fiber internet, hosted VoIP phone systems, and fully managed network services to businesses of all sizes across Los Angeles and Southern California. The company serves over 60,000 users, handles 1.4 million phone calls per month, and transfers 585 terabytes of data daily across 18 service markets. Every service — internet, voice, and managed networking — appears on a single transparent invoice under the "One Company. One Smart Bill." model.

Tierzero is privately owned and has been debt-free since founding. The company is focused exclusively on business customers — this is not a residential provider moonlighting as business, and not a national carrier where Los Angeles is one of 41 states. Every product, every support interaction, and every infrastructure decision is made with LA and SoCal business needs first.