Xcout Intel
Harmonic Security, Inc.
Harmonic Security delivers an AI Governance and Control platform designed to secure and enable the AI-first workforce, with offices in San Francisco, California and London, UK.
Subscribe to see Harmonic Security, Inc.’s full profile → the full roster, investors in every round, weekly hiring history and every corporate event
Harmonic Security, Inc. at a glance
Harmonic Security, Inc. is a cybersecurity company headquartered in United States. Its most recent funding round, Series B, raised $50M in October 2026. Xcout tracks 10 named people at Harmonic Security, Inc., including Alastair Ewan Paterson (Chief Executive Officer). Xcout recorded 8 job postings from Harmonic Security, Inc. in the last 90 days.
Harmonic Security, Inc. leadership
- Alastair Ewan PatersonChief Executive Officer
- ALASTAIR PATERSONCEO and co-founder
- Bryan Woolgar-O'NeilCTO & CO-FOUNDER, HARMONIC
- Alastair Ewan PatersonExecutive Officer
- Bryan Ewan Woolgar-O'NeilExecutive Officer
- Bryan Woolgar-O'NeilExecutive Officer
4 more named people on record for Harmonic Security, Inc., with roles, board committees and tenure — see the full roster →
Harmonic Security, Inc. funding rounds
Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series B | $50M | 1 named | |
| Series A | $17.5M | 1 named | |
| Series A | $18M | 1 named | |
| Seed | $8.5M | 2 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Hiring at Harmonic Security, Inc.
Xcout recorded 8 job postings from Harmonic Security, Inc. in the last 90 days, from a hiring record Xcout has kept since August 2026.
The weekly hiring trend, the roles and locations behind it — see Harmonic Security, Inc.'s hiring signals →
Recent Harmonic Security, Inc. news
Investors
Tech stack
Harmonic Security, Inc. competitors
A few of Harmonic Security, Inc.'s closest competitors — see the full list of competitors and alternatives →
Ray Security provides an AI data security platform that helps organizations discover, monitor, and control how AI agents, copilots, LLMs, and shadow AI access enterprise data. The company's software features agentless data loss prevention, automated remediation of unnecessary data exposure, unified policy management, and data access auditing to help secure sensitive information.
Symmetry Systems provides a data and AI security platform that enables enterprises to discover, map, and secure data and AI agent communications.
WitnessAI is an artificial intelligence security and governance platform that provides network visibility, intent-based controls, and runtime defense for enterprises. The company offers a unified solution designed to help organizations safely observe, control, and protect public and private large language model activity. Its platform facilitates the secure adoption and governance of enterprise artificial intelligence.
Verax AI is a privately held enterprise AI security company headquartered in New York, New York. The company builds security and governance solutions featuring in-network enforcement, identity-aware access control, and real-time data protection to enable the safe adoption of generative AI.
Cyberhaven provides an AI-driven data security platform that unifies data security posture management (DSPM), data loss prevention (DLP), insider risk management, and AI security. The company helps organizations protect, track, and control sensitive data across endpoints, cloud environments, SaaS applications, and AI tools.
Reco provides an AI agent security platform designed for security and IT teams to discover, govern, and secure connected AI agents and applications. The platform offers capabilities such as agent runtime monitoring, shadow agent discovery, identity access governance, and data exposure management.
Get Harmonic Security, Inc.'s news by email
Funding rounds, acquisitions, new executives, launches and expansions, each with a two-line summary and a link to the source. One short email a day, only when there is news.
Free: up to 5 companies, daily. Subscribers also follow whole sectors and saved filters (M&A in Israel, AI funding…), get instant alerts, in-app notifications and signed webhooks, and open the full profile behind every name. Subscribe →
Something wrong or missing about Harmonic Security, Inc.? Suggest a correction
Share this card
Post the link and the card appears automatically — each network fetches the image itself.
More on Harmonic Security, Inc. in Xcout Intel
- 10 named people with titles, LinkedIn and board committees
- 4 funding rounds with the investors in each, and who they co-invest with
- Weekly hiring history and the mix of roles behind it
- 1 corporate event with sources — deals, leadership changes, layoffs
- The full competitor set, tracking, exports and API access