Meet Seismic
We offer the personalized, high-touch service of a boutique IT services provider, with the breadth and depth of experience you’d expect from industry giants.
Founded in 2010, Seismic is an offshore managed service provider specializing in UC and IT infrastructure.
Leadership
Seismic founder and CEO Greg Walsh’s extensive experience in managing people, processes and systems on a global scale is the result of a long and successful career in Consumer Retail, Financial Services, and Health and Life Sciences verticals. Prior to founding Seismic, he rose through the ranks in the Global Services Division at RR Donnelley. He also held executive positions at (then) Platinum Avaya Business Partner Consultedge, as well as leadership roles at ICT Group (prior to its acquisition by Sykes) and the SFA solution provider, C3i-Inc. During his time in the industry, Greg identified gaps in the channel’s service offerings. In 2010, he set out on his own, founding Seismic to bridge those gaps and help companies gain competitive advantage through cutting-edge technology delivered with top-notch customer service.
Co-founder and COO Phani Karra is an industry veteran with a long history of entrepreneurial pursuits, including three highly successful ventures built from the ground up and launched in the US and India. WitsLea Consulting, one of these start-ups, grew from zero to profitability in just a few years. His extensive expertise has shaped Phani into an executive who can quickly diagnose a problem and provide effective solutions. As Chief Operating Officer, Phani is responsible for every aspect of Seismic’s infrastructure. This includes organizing and managing Seismic’s vast network of resources, defining operational excellence across organizational capabilities, and refining the delivery mechanisms of Seismic’s offerings.
As an entrepreneurial technology executive and board-level leader, Josh Mustard commands a founder’s mindset with C-suite gravitas—leading high-growth services and software organizations across markets. At Seismic LLC, he drives transformational strategies combining go-to-market scale, platform innovation, and operational rigor. His reputation rests on turning nascent opportunities into market leaders.
Over his career, Josh has consistently scaled revenue and expanded margins by marrying product, sales, and delivery. He has led full P&L responsibility, built tier-1 go-to-market teams, and architected M&A and strategic partnerships. Whether launching new products or driving operational excellence, his leadership has delivered measurable growth, business efficiency, and market differentiation. He is known for aligning cross-functional teams, instituting data-driven governance, and maintaining a bias for execution.
His core capabilities include digital transformation, revenue operations, SaaS growth strategy, board engagement, tech services delivery, and executive stakeholder alignment. He is fluent in leadership practices that intersect with emerging tech and customer-centric business models. His public positioning identifies him as a “Customer-Centric Operations Executive | Scaling Growth, Driving Efficiency”.
Looking forward, Josh is poised to lead organizations through disruption—spearheading scalable growth engines, cultivating high-velocity innovation, and transforming culture to sustain competitive advantage. He offers the rare combination of strategic vision, execution discipline, and operational accountability demanded at the top 1%.
