Charles Horton

Spectrum Equity Management LP (Spectrum Equity) is an independent Private Equity firm founded in 1993 by Bill Peter Collatos and Brion Blackwell Applegate. The firm is headquartered in Boston, Massachusetts with an additional office in California.

Trident Capital, Inc. (Trident Capital) is an independent venture capital firm founded in 1993 by Donald Dixon and John Moragne. The firm is headquartered in San Mateo, California.

Redback Networks, Inc. designs, develops, and builds routers. It offers services like VoIP, IPTV, on-demand video, and online gaming. The firm's products enable carriers & service providers to deploy broadband Internet access. The company was founded is headquartered in Dover, DE.

Linxup LLC provides mobile resource management solutions. It offers the web-based tools, wireless forms, GPS tracking, automated call-ahead, GPS fleet management and dynamic route optimization tools to businesses and government agencies. The company was founded by Naeem Bari and Gregory J. Winter in 2004 and is headquartered in St. Louis, MO.

Planful, Inc. provides corporate performance management solutions for manufacturing, retail, healthcare, technology, financial, and entertainment industries. It offers budgeting, forecasting, financial consolidation, dashboarding, scorecarding, reporting, and analysis. The firm also offers classroom training, virtual classes, recordings, certification, and training guides. The company was founded by James A. Eberlin and Sreedhar Peddineni in May 2000 and is headquartered in Redwood City, CA.

O9 Solutions, Inc. develops an integrated planning and operations management platform. It offers integrated demand and supply management, and business planning solutions. The company was founded by Sanjiv Sidhu and Chakri Gottemukkala in 2009 and is headquartered in Dallas, TX.

Kohlberg Kravis Roberts & Co. LP (KKR) is a private equity subsidiary of KKR & Co. Inc founded in 1976 by Henry Kravis, George Roberts and Jerome Kohlberg. The firm is headquartered in New York.

Paladin Capital Group (Paladin Capital) is a private equity subsidiary of Penn Ave Investments LLC founded by Mark Maloney and Michael Steed in 2001. The firm is headquartered in Washington, DC with offices in New York City, Silicon Valley, London and Luxembourg.

Part of Veradigm, Inc., MasterChart, Inc. develops software that provides key dictation and integration technology. The company is based in Bannockburn, IL. MasterChart was acquired by Allscripts LLC on May 09, 2000 for $51.67 million.

Gryphon Networks Corp. provides cloud-based sales intelligence and marketing compliance software solutions. It collects and analyzes call data from various devices to transform sales activity into actionable sales intelligence. The firm clients include Citi, Starwood, HSBC, HealthMarkets, Lehman Brothers, and Janney. The company was founded by Keith A. Fotta in 1998 and is headquartered in Norwood, MA.

Optiv Security, Inc. is a security solutions integrator, which engages in the provision of cyber and information security solutions. Its security solutions include security services, cyber operations, identity and data management, risk management and transformation; and security technology. The company was founded by Gary L. Fish in 1996 and is headquartered in Denver, CO.

Aptus Health, Inc. operates a marketing platform for physicians and health care professionals. Its services include Geo-targeting mobile advertising; clinical alerts and eNewsletters; insight and attitudinal surveys; KOL-led presentations; eDetails; Peer-to-Peer collaboration; eSampling; Electronic Health Record integration; patient feedback; segmentation and tartgeting; behavioral insights; and intelligence and reporting. The company was founded by Donato J. Tramuto in 2008 and is headquartered in Reading, MA.

Extreme Reach, Inc. provides video advertising technology services. The firm offers advertising distribution and management solutions through cloud-based platform. It also provides pre-session management, estimates and payment, creative library, ad-ID integration, and compliance services. The company was founded by John C. Roland, Timothy A. Conley, Daniel Brackett and Patrick Hanavan in 2008 and is headquartered in Needham, MA.

ExactBid LLC provides real estate appraisal management software for banks, appraisal management companies and due diligence vendors. The firm offers its services to appraisers, property inspectors, and environmental consultants. It specializes in Commercial Real Estate and Auto Text Merge. The company was founded by Andrew Maisel in 2000 and is headquartered in Campbell, CA.

Complete Innovations, Inc. provides mission critical fleet, asset and mobile workforce management solutions. Its products include fleet tracker, asset tracker, electronic logging device, task tracker and dispatch. The company was founded by Tony Lourakis and Andrew Merisanu in 1998 and is headquartered in Toronto, Canada.

Symmetric Capital LLC (Symmetric Capital) is a private equity firm founded in 2007 by Daniel Keahane Doyle, Robert Vincent Walsh and William P. Livek. The firm is headquartered in Burlington, Massachusetts.

ReliaQuest LLC provides enterprise security solutions. It offers detection and response, security and engineering, threat management, and delivery management. The company was founded by Brian P. Murphy in 2007 and is headquartered in Tampa, FL.

66degrees LLC provides cloud based software solution services. Its products include Google Apps for Work, Zoho CRM, Switch.co, Hubspot Marketing, Google App Engine, WorkflowMax-Xero, and Freshdesk. The company was founded by Mitch Greenwald in 2010 and is headquartered in Chicago, IL.

Cherwell Software LLC provides information technology and management software services. It offers IT service management, IT asset management, enterprise service management, project and portfolio management, security management, cloud service management and IT operations management. The company was founded by Vance F. Brown, Arlen Feldman, and Timothy G. Pfeifer on May 14, 2004 and is headquartered in Colorado Springs CO.

Theatro Labs, Inc. provides voice-controlled wearable communications devices. It offers theatro cloud, wearable computer, communications, indoor location, and analytics. The company was founded by Christopher Todd, Ravi Shankar Kumar, Patrick Fitzgerald and Guy VanBuskirk in 2012 and is headquartered in Richardson, TX.

PolicyGenius, Inc. provides insurance services. The company was founded by Jennifer Fitzgerald and Francois de Lame on March 18, 2013 and is headquartered in Brooklyn, NY.

Medical Technology Solutions LLC provides healthcare cloud computing services. Its services include MTS cloud, managed Information Technology services, interface development and security services. The company was founded by James Deck in 2006 is headquartered in Valencia, CA.

Sunstone Partners Management LLC (Sunstone Partners) is a private equity firm founded in 2015 by Gus Alberelli, Mike Biggee, John Moragne and Arneek Multani. The firm is headquartered in San Mateo, California.

MyPizza Technologies, Inc. operates as an online platform for pizzas. It allows users to connect with their favorite authentic and local pizzeria. The company was founded by Ilir Sela in 2015 and is headquartered in New York, NY.

Semperis, Inc. provides identity and access management solutions. It specializes in active directory, disaster recover, cyber security, and identity protection. The company was founded by Mickey Bresman, Matan Liberman, Michael Frank Dubinsky, and Guy Teverovsky in 2013 and is headquartered in New York, NY.

ProgenyHealth LLC provides evidence-based care management services for premature and medically complex newborns. The firm’s services include NICU case management, first year of life and analytics/reporting. The company was founded by Ellen Stang in 2003 and is headquartered in Plymouth Meeting, PA.

Tenstreet LLC provides recruiting solutions. The firm also offers marketing, integradted driver on boarding software, safety, processing, verifications and providing, and retention solutions. Its software includes intelliapp, xpress, xchange, dqf, xtend, and communications engine. The company was founded by Craig Johnson, Tim Crawford, Mike Hanisch, Bryan Riddle, and Dale Reagan in 2006 and is headquartered in Tulsa, OK.

Stova Group LLC designs and develops software application that allows the user to connect to other attendees of event. Its features include streamline event, feedback and insights, security and privacy, and indoor way finding. The company was founded in 2012 and is headquartered in Frederick, MD.

The Expert Institute Group LLC develops and operates technology platform for transforming the way law firms across all practice areas access expertise. The company is headquartered in New York, NY.

RVshare LLC operates as a holding company through its subsidiaries develops and operates software platform for recreational vehicles. The company was founded Joel Clark by in 2013 and is headquartered in Akron, OH.

eSSENTIAL Accessibility, Inc. operates as a platform which provides web, mobile and product experiences through testing, evaluation and remediation. It provides web accessibility evaluation and remediation services, ongoing monitoring, pdf remediation, multimedia accessibility, training, accessibility and conformance statement. The company was founded by Simon Dermer, Spiro Papathanasakis and Mark Steele in January 2008 and is headquartered in New York, NY.

Avertium LLC engages in the provision of cyber security services. The firm has security operations centers in Arizona and Tennessee. The company was founded in 2019 and is headquartered in Phoenix, AZ.

Part of Cognizant Technology Solutions Corp., Thirdera LLC is an elite-level ServiceNow partner, offering workflow-enabled services and solutions to help customers leverage the power of the ServiceNow platform. The company is based in Broomfield, CO and has subsidiaries in the United States, Canada, and Australia. Thirdera is currently a portfolio company of Sunstone Partners. The company, founded in 2021, has quickly become an industry leader, recognized for its expertise and innovation. The company was founded by Esteban Reyes and Jason Wojahn, with Jason Wojahn serving as the CEO since 2021. Thirdera was acquired by Cognizant Technology Solutions Corp. on January 23, 2024.

Zinnia, LLC is a life and annuity insurance technology and digital services company based in Topeka, KS. Zinnia, LLC operates as a life and annuity insurance technology and digital services company. The private company was founded in 2005 and Michele Trogni has been the CEO of the company since 2022.