RingCentral is a publicly traded provider of cloud-based communications and collaboration solutions for businesses.

Software

RingCentral

Tarek Robbiati has served as Executive Vice President, Chief Financial Officer of Hewlett Packard Enterprise Co. since September 2018. Before Joining Hewlett Packard Enterprise, Mr. Robbiati served as Chief Financial Officer of Sprint Corporation from August 2015 to February 2018. Prior to that, Mr. Robbiati served as Chief Executive Officer and Managing Director of FlexiGroup Limited in Australia from January 2013 to August 2015. He previously served as Group Managing Director and President of Telstra International Group in Hong Kong and Executive Chairman of Hong Kong CSL Limited from December 2009 to December 2012, and as Chief Executive Officer of Hong Kong CSL Limited from July 2007 to May 2010. He holds a Baccaleaureat C, Terminale C from Lycée Chateaubriand Rome, a Master of Science Nuclear Physics and Electronics from École nationale supérieure d'ingénieurs de Caen (ENSICAEN), a Master of Science Business Administration from IAE Caen and a Master of Business Administration from the London Business School.

Tarek Robbiati

Sridhar Srinivasan has served as the Chief Product and Engineering Officer of Zuora, Inc., a subscription management software company, since January 2021. Prior to joining Zuora, Mr. Srinivasan served as Senior Vice President and General Manager, Team Collaboration Group at Cisco Systems, Inc., a networking and telecommunications company, from October 2018 to December 2020 and as Vice President and General Manager from March 2018 to October 2018. From June 2005 to February 2018, Mr. Srinivasan held several senior engineering and leadership positions at Microsoft Corporation, a multinational technology company. He holds a Bachelor of Science in Computer Science from the Birla Institute of Technology, India.

Sridhar Srinivasan

As [RingCentral](/org/ringcentral)’s Chief Financial Officer, Sonalee Parekh is responsible for all the company’s financial functions including financial planning, controllership, tax, treasury, and investor relations.

Parekh has more than 25 years of global capital markets and operational experience in the high growth Technology, Media, Telecommunications and Consumer Internet industries, both as an advisor and senior executive.  Prior to joining [RingCentral](/org/ringcentral), Parekh was CFO of [Hewlett Packard Enterprise](/org/hewlett-packard-enterprise)’s (HPE) Communication Technology Group, and Senior Vice President of Finance, Strategy and Corporate Development, as well as Investor Relations. Her responsibilities included mergers and acquisitions, strategic investments, business integration and performance management. 

Prior to working at HPE, Parekh held several senior leadership roles at global investment banks, including Barclays Capital, [Goldman Sachs](/org/goldman-sachs) and [Jefferies](/org/jefferies).  There she advised private and public companies on a variety of transactions including M&A, capital structuring, joint ventures, private placement, as well as on business development and strategic growth initiatives at the board level.  She is a public accounting alumna of PwC, having worked at the firm in both Canada and the United Kingdom. Parekh serves on the Board and is Chairman of the Audit Committee at Indie Semiconductor (INDI) a leader in the Auto Tech space and is also Chairman of the Nominating and Governance Committee of the Perella Weinberg Forward Acquisition Corporation, which invests in female founded companies.

Parekh is a fierce diversity, equity and inclusion champion and is a frequent speaker at Women in Technology events. She attended [McGill University](/org/mcgill-university) (Montreal, Quebec) where she graduated with Great Distinction and is a Chartered Accountant.

Sonalee Parekh

Vaibhav Agarwal, Chief Accounting Officer, serves as the company’s principal accounting officer and joined the company as Vice President, Corporate Controller in July 2016.
 
Prior to joining [RingCentral](/org/ringcentral), Vaibhav served as Assistant Corporate Controller of the Programmable Solutions Division of Intel Corporation (formerly Altera Corporation). He joined Intel through it’s acquisition of Altera Corporation, where he was the Assistant Corporate Controller. Prior to Altera, he was Director, Corporate Accounting at Intuitive Surgical Inc. and before that worked at PricewaterhouseCoopers.

Vaibhav Agarwal

As RingCentral’s President & Chief Operating Officer, Mo Katibeh is responsible for RingCentral’s products, sales, marketing, customer experience, human resources and corporate strategy. A seasoned technology leader, Katibeh is focused on fueling RingCentral’s growth by accelerating investments in arenas that are strategically important for long-term success. Since joining the company, Katibeh has also optimized processes and systems to deliver a more agile company that's focused on helping customers transform their business communications to the cloud – while driving durable and increasingly profitable growth with operational discipline.
Katibeh is a 20 year veteran of technology, cloud, product and sales roles. Prior to joining RingCentral, Katibeh held multiple executive positions at AT&T, including EVP Chief Product & Platform Officer and EVP Chief Marketing Officer of AT&T Business where he oversaw all product and marketing responsibilities, as well as go to market sales for digital, wholesale, and indirect channels. Under Katibeh’s leadership, AT&T established a multi-billion dollar communications, collaboration, and security business, driving market leading growth through development and deployment of innovative cloud-based technologies. He was also recognized as one of the World’s Most Influential CMOs by Forbes for 2019 and 2020.
Katibeh grew up in the United Kingdom and has lived in Europe, the Middle East, South America, and the United States. He holds a bachelor’s degree in Business with majors in International Business, Marketing, and Philosophy from Oklahoma State University and an Executive MBA from the University of Texas, Dallas. 

Mo Katibeh

Homayoun Razavi is the SVP of RingCentral's Global Service Provider business unit, aimed at working in partnership with global service providers and maximizing customer value with joint cloud communications, network and mobility solutions that can be delivered globally at scale.
 
Homayoun has 32 years of experience working with global service providers. He joined BroadSoft pre-IPO and built a strong team for over 7 years serving as Managing Director of America, which delivered 70% of annual revenue. Homayoun remained at BroadSoft until 2017 before it was sold to Cisco and moved to Coriant as EVP, Chief Customer Officer, where he was in charge of global sales & marketing as he managed a global team of 1,000 people and delivered one billion dollars in revenue; as well as, success in companies such as Lucent, Ascend, Cascade and MCI.

He brings a wealth of experience in operations, product marketing, engineering, go-to-market strategies, business development, and sales for a wide range of technology-driven software, hardware, services, and cloud-based companies with most recent focus on 5G Edge Compute for IoT with board advisory positions at ENEA, nuPSYS, Crunch Media, Bluechip, and serving as head of technology module with ISDI Digital University.

Homayoun Razavi

Vasanth Matamudra

Emmanuel Kithima

Tasia Bromell

Carson leads all of [RingCentral](/org/ringcentral)’s worldwide field teams including field sales for the enterprise and commercial segments, solutions engineering, contact center sales, and sales operations. Prior to being promoted to this role, Carson held the title of VP, Worldwide Enterprise Sales at [RingCentral](/org/ringcentral) for 3 years. During this time he grew revenue to $200M annually, all while building out a world class team.

Prior to joining [RingCentral](/org/ringcentral) in 2016, Carson worked at [Avaya](/org/avaya) for 7 years, holding several VP level sales positions with revenue responsibilities up to $1B annually. He moved to [Avaya](/org/avaya) after 10 years at Nortel Networks.

As an industry veteran, Carson has seen it all in the unified communication and contact center space and is passionate about using
that knowledge to help customers transition to the cloud.
Carson holds a bachelor's degree in material science and engineering from [North Carolina State University](/org/north-carolina-state-university). He resides in the Atlanta, GA, home of the world’s busiest airports, which he often uses to visit customers and team members around the world.
Carson has been happily married for over 10 years to Julie and has 2 daughters. He holds a second-degree black belt in Shuri Ryu karate and enjoys teaching his little girls the martial arts.

Carson Hostetter

Kira Makagon leads global product, user experience, engineering, and operations. She is a critical driver in defining [RingCentral](/org/ringcentral)’s product strategy and in bringing to market [RingCentral](/org/ringcentral)’s robust communications and collaboration solutions. Makagon is also passionate about superior user experiences. Throughout her career, she has pioneered multiple breakthrough industry solutions and companies, garnering a reputation as a visionary product and business leader.

Before joining [RingCentral](/org/ringcentral), Makagon founded and served as CEO and president of Red Aril, a real-time audience and media optimization platform acquired by Hearst Corporation. Prior to that, she co-founded and held executive and board positions at flagship online marketing and CRM companies, including Octane Software, acquired by E.piphany, and Scopus Technology, acquired by Seibel.

Makagon holds a bachelor's degree in computer science from the University of California, Berkeley, and an MBA from the Haas School of Business at [UC Berkeley](/org/uc-berkeley). She serves as an advisor to entrepreneurs and early-stage companies, including [Illuminate Ventures](/org/illuminate-ventures), and is a member of the Board of Directors at Calix.

As well as being a prominent and frequent speaker at many industry events, Makagon has received numerous awards, including a 2018 San Francisco Business Times Forever Influential Honor Roll award, a 2016 Silver Stevie for Female Executive of the Year, a 2016 Most Influential Women in Business from the San Francisco Business Times, a 2015 Women of Influence from the Silicon Valley Business Journal, and a 2015 Golden Bridge Business and Innovation award.

Kira Makagon

Vlad Vendrow is the key architect of the [RingCentral](/org/ringcentral) cloud phone solution. He is responsible for enabling [RingCentral](/org/ringcentral)’s core product innovation and category leadership while ensuring global scalability and availability. He is passionate about empowering people to connect and communicate with unparalleled freedom and ease from their device of choice.

Prior to [RingCentral](/org/ringcentral), Vendrow served as the Director of Engineering at [Ring Zero Systems](/org/ring-zero-systems) and [Motorola](/org/motorola).
His accomplishments include leading the development of the Ring Zero phone and fax communications software that shipped more than 25 million copies worldwide.

Vendrow has been granted more than 40 patents in the areas of unified communications, fixed-mobile convergence, and cloud services. He holds a master’s degree in computer science and applied mathematics from Saint Petersburg Electrotechnical University in Russia.

Vlad Vendrow

Ken Goldman has served as President of Hillspire, a wealth management firm, since April 2018. He brings extensive financial leadership experience to [RingCentral](/org/ringcentral) through numerous executive and board of director roles at enterprise technology companies.

He recently served as Chief Financial Officer at [Yahoo!](/org/yahoo) overseeing all global finance functions for the company. Prior to [Yahoo!](/org/yahoo), Goldman served in chief financial officer roles for several enterprise technology companies including [Fortinet](/org/fortinet) and Siebel Systems. Goldman serves on the board of directors of NXP Semiconductor, Trinet, GoPro, Inc., and non-profit boards such as the Lucile Packard Children’s Hospital Foundation Board. Goldman is also a member of the Standing Advisory Group of the Public Company Accounting Oversight Board.

Goldman’s depth and breadth of experience in scaling multiple technology companies will prove invaluable as [RingCentral](/org/ringcentral) grows and meets global customers’ communications and collaboration needs. His leadership will support [RingCentral](/org/ringcentral)’s goal of achieving one billion dollars in revenue by 2020.

Goldman received a bachelor’s degree of science in electrical and electronics engineering from [Cornell University](/org/cornell-university) and an MBA from [Harvard Business School](/org/harvard-business-school).

Kenneth A. Goldman

Neil Williams was [Intuit](/org/intuit)’s Senior Vice President and Chief Financial Officer from January 2008 to February 2018. Williams has nearly 30 years of strategic, operational, and transactional experience in the financial services industry. He is responsible for all financial aspects of the company, including corporate strategy and business development, investor relations, financial operations, and real estate.

Before joining [Intuit](/org/intuit), Williams was theExecutive Vice President and Chief Financial Officer for Visa U.S.A., Inc. In that role, he led all financial functions for the company and its subsidiaries, including financial planning, business planning, and financial monitoring. Williams concurrently served as Chief Financial Officer for Inovant LLC, Visa’s global information technology organization, responsible for global transactions processing and technology development.

His previous banking experience includes senior financial positions at commercial banks in the Southern and Midwestern regions of the United States.
Williams is a certified public accountant and received his bachelor’s degree in business administration from the University of Southern Mississippi.

R. Neil Williams

Rob Theis is a Lead Director at [RingCentral](/org/ringcentral) and currently a General Partner at [World Innovation Lab](/org/world-innovation-lab). Investments include [Automation Anywhere](/org/automation-anywhere), [Auth0](/org/auth0), BrightRoll, [DocuSign](/org/docusign), [Fortinet](/org/fortinet), HubSpot, and [RingCentral](/org/ringcentral). Theis has invested in over 25 companies creating an aggregate capitalization of $42 billion with seven IPOs and 11 acquisitions.  Theis previously held executive positions at New Era of Networks, Sun Microsystems and Silicon Graphics. Theis has a BA in economics and computer science from [University of Pittsburgh](/org/university-of-pittsburgh).

Rob Theis

John Marlow serves as Chief Administrative Officer, General Counsel, and Senior Vice President of Corporate Development at [RingCentral](/org/ringcentral), where he oversees business and legal affairs, people operations, and facilities. His legal responsibilities include SEC and NYSE compliance; strategic agreements with carriers, including [AT&T](/org/att), TELUS, and BT; intellectual property; regulatory compliance; litigation; and privacy and security matters. His people operations and facilities responsibilities include managing [RingCentral](/org/ringcentral) talent acquisition, talent management, total rewards (compensation and benefits), HRIS, and facilities teams globally. His corporate development responsibilities include M&A and strategic partnership transactions, and he also previously helped lead [RingCentral](/org/ringcentral)’s EMEA operations.

Before joining [RingCentral](/org/ringcentral), Marlow founded and managed his own law firm and, prior to that, was a partner at Reed Smith, LLP, a Law360 Global 20 firm with more than 1,700 attorneys worldwide.

Marlow received his law degree from Boalt Hall School of Law at the University of California, Berkeley, and earned his bachelor’s degree, summa cum laude, from [Colgate University](/org/colgate-university).

John Marlow

Vlad Shmunis founded [RingCentral](/org/ringcentral) with the idea of using the power of cloud technologies to reimagine business communications. The company vision is to deliver customer-first solutions that meet the needs of the rapidly changing business environment. [RingCentral](/org/ringcentral) enables the modern workforce to communicate, collaborate, and connect from anywhere, on any device using any form of communication. The focus is to deliver flexible and cost-effective solutions that disrupt the business of legacy on-premises phone systems, while providing other important communications capabilities. With the delivery of [RingCentral](/org/ringcentral)’s mobility-centric cloud communications solutions, [RingCentral](/org/ringcentral) unifies voice, video, team messaging and collaboration, conferencing, online meetings, and integrated contact center. Today, [RingCentral](/org/ringcentral) is the #1 cloud communications provider, used by more than 350,000 businesses worldwide. 

RingCentral is recognized as the largest and fastest-growing global pure-cloud communications solutions provider. [RingCentral](/org/ringcentral) is the top-ranked company in the 2019 IHS Markit North American UCaaS Leadership Scorecard for three years in a row, and recently ranked the highest for growth and innovation in [Frost & Sullivan](/org/frost-sullivan)'s 2019 UCaaS Radar Report. In addition, [RingCentral](/org/ringcentral) has been named a leader in the Gartner Magic Quadrant Unified Communications as a Service Worldwide 2015, 2016, 2017, 2018, and 2019 and UCaaS Company of the Year by [Frost & Sullivan](/org/frost-sullivan) in 2017.

Under Shmunis, [RingCentral](/org/ringcentral) has evolved from a startup company, funded in 2006 with a $12 million series A round led by Sequoia and [Khosla Ventures](/org/khosla-ventures), to a publicly traded NYSE listed company with a market cap of more than $10 billion. 

Shmunis is an over 30-year veteran of the software industry. Prior to launching [RingCentral](/org/ringcentral), he served as the founder and CEO of [Ring Zero Systems](/org/ring-zero-systems), where he pioneered desktop software for business communications software. Ring Zero shipped more than 25 million copies of its software to PC manufacturers, leading to its acquisition by Motorola.

Shmunis holds a bachelor's and master's degree in computer science from San Francisco State University and is a named inventor on a variety of US patents. In 2014, he was named Ernst & Young Entrepreneur of the Year™, Northern California Region.

Vlad Shmunis

Claude Giorgio

Alvin Lam is the current Vice President of Employee Success - Global Talent Acquisition at [RingCentral](/org/ringcentral). Prior to this, Alvin held various positions in the talent acquisition field with companies such as Rafter, Inc., VSS Monitoring, TOSGA, DIRECTV, and Meru Networks. In 2003, Alvin founded Fatjobs, a company that provided a job board for larger individuals. After a successful run with Fatjobs, Alvin transitioned into the role of Contract Senior Technical Recruiter with Fuze Networks. Alvin has been instrumental in the success of many companies and continues to be a leader in the talent acquisition field.

Alvin Lam received their BA in Political Science from the University of California, Berkeley.

Some of their coworkers include Sonalee Parekh - CFO, Carson Hostetter - SVP, Worldwide Field Sales, and Mo Katibeh - President & COO. Their manager is Vlad Shmunis, Founder, Chairman & CEO.

Alvin Lam

Arne Duncan is also the Managing Partner at [Chicago CRED](/org/chicago-cred). 



Arne Duncan

Allan Thygesen is Google’s President, Americas, responsible for the advertising business in North and South America. Previously, Thygesen led Google Marketing Solutions, the global mid-market and small advertiser business, which serves millions of customers and agencies.

Before joining Google in 2010, Thygesen was a Managing Director and Partner in the US venture and growth funds of the Carlyle Group, where he led investments in e-commerce, mobile advertising, and imaging startups. Earlier, Thygesen served as EVP, Sales and Business Development at Wink Communications, which he helped take public in 1999. Before Wink, he worked in sales, marketing, customer service, and finance management roles at various technology companies in the US and Denmark.

Thygesen received a master’s degree in economics from the [University of Copenhagen](/org/university-of-copenhagen) and an MBA from the Stanford Graduate School of Business as an Arjay Miller scholar. He lives in the Bay Area with his wife and four children.

RingCentral

Org chart

Teams

Leadership Team

CEO and Executive Team

Board of Directors

Founding Team

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