Our Story

You might say that DNS is in our DNA. Nominum invented DNS, has written 90% of the world’s DNS code, and was the first to scale, secure, and leverage DNS to deliver a whole new set of services. We are passionate about great Internet experience, high quality code, and straightforward approaches to solving complex provider challenges. Now we have harnessed DNS to allow providers to deliver extraordinary value to their subscribers.


Innovators from day one

Nominum pioneered DNS and has been the innovation leader ever since—leading the way by making service provider networks more reliable, more secure, and more responsive to changing subscriber needs.

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Proven worldwide

9 of the top 10 service providers use Nominum DNS. Nominum product is deployed in over 40 countries and processes 1.6 trillion queries each and every day. That’s far beyond what is processed by today’s largest and most popular Internet properties.


Our next game changer

Service providers have shifted from a network focus to a more nuanced customer focus. Nominum has responded with N2. N2 is the next phase in the evolution of service provider DNS, offering unique and personalized subscriber value.

Our Value

Nominum continues to harness the possibilities of DNS. From the first World Wide Web to the Internet of Things, Nominum has been at the forefront of extending DNS to meet the most pressing service provider business challenges.

Our Executive Team

Gary Messiana


Gary brings an extensive track record of leadership and success in software and hosted service solutions as well as a customer-centric philosophy, operational excellence and a wealth of management experience to the company.Gary Messiana, Chief Executive Officer, joined Nominum in July 2011. Starting in 2008, Gary was an entrepreneur-in-residence with Bessemer Venture Partners. At Bessemer, Gary focused on the software and infrastructure-as-a-service sectors. Prior to Bessemer, Gary served as CEO of Netli, a content-and-application delivery network provider serving both the network operator and enterprise markets. Netli was sold to Akamai in 2007. Gary was also CEO at Diligent Software Systems, a strategic sourcing company that was sold to B2E Markets. Gary holds a BA degree from Binghamton University where he graduated with honors and serves on Nominum’s board of directors.

Bob Verheecke


Bob Verheecke, Chief Financial Officer, has over 30 years of experience building high-tech companies from start up through IPO.  His experience includes all aspects of international operations having built a worldwide finance team at Business Objects and at a Singapore-based B2B eCommerce company. He has managed all areas in finance including accounting, cash management, tax, planning & analysis, credit & collections, payables, and receivables. Bob’s special talent lies in building sophisticated business planning and decision support models that are used to assist executives in the key decision-making process within the areas of product line profitability, gross margins and pricing. Bob’s accomplishments include being a key executive in the restructuring and turnaround of Blue Coat Systems; he was responsible for organizing and coordinating the initial public offering of Business Objects; as a member of the senior management team at NetFrame he helped take the company from their startup phase to profitability and a successful public equity offering; he led the management team at Netli through a decision process resulting in selling the company to Akamai.

Pete Wisowaty

Executive VP of Worldwide Sales & Solutions

Pete Wisowaty is Nominum’s Executive Vice President of Worldwide Sales & Solutions responsible for expanding Nominum’s leadership in the Service Provider, Federal and Enterprise markets. Pete brings over 30 years of sales, sales management, and business development experience and has demonstrated a proven track record. Prior to Nominum, Pete was Vice President of Strategic Sales and Business Development for Grand Central Communications a cloud based application company serving global Service Providers, Enterprise and Government business. He has also held senior level sales and sales management positions at several early stage companies in network infrastructure, software applications and wireless technologies including WhereNet (Zebra), Pluris, ZeitNet (Cabletron), and Kalpana (Cisco). Pete holds a BS degree in Business Administration from San Diego State University.

Srini Avirneni

Senior Vice President, CTO

Srini Avirneni, Chief Technology Officer, is responsible for Nominum’s Technology & Innovation, Operations and Service Delivery.  He brings over 20 years of technology and operational  expertise to the company and has held executive positions in Operations, Engineering and Product Management for Nominum prior to becoming CTO.

Prior to Nominum, he held technical lead roles at Comcast, Lucent and INS; where he designed and deployed applications to support new subscriber activation and messaging services to support Customer in-browser notifications.  He also architected, deployed and supported DNS, DHCP and IPv6 device provisioning services supporting High Speed Internet, VoIP and Video. Srini holds a B.S. and M.S. in Computer Science and is a holder of multiple US patents.

Sandy Wilbourn

VP of Engineering

Before joining Nominum in 2013, Sandy led the data analytics engineering group at Oracle. Prior to that, he served as VP of Engineering at Nominum, where he led development for many of our best selling products. He brings a great combination of knowing our technology, people, industry, customers, and data analytics. While he is well grounded in that respect, he was inspired to come back by our commitment to the N2 platform, our applications, and Internet Activity Analytics and their ability to transform the market and our value as a company.

Brian McElroy

VP of Business Development

Brian McElroy is Vice President of Business Development at Nominum. He is responsible for leading business development and strategic partnerships. Brian joined Nominum in 2007, with more than 15 years of business development, sales, and marketing experience. Prior to joining Nominum, Brian led the business development team at Check Point Software Technologies, where he was responsible for OEM, distribution, and strategic partnerships. Prior to Check Point, Brian spent over 8 years at Trend Micro in various roles, including director of business development, sales, and product management. Throughout his career Brian has created and managed strategic marketing initiatives to expand market presence and grow businesses. Brian holds a Bachelor of Arts degree in Economics from University of California at Berkeley.