This week’s capital flowed almost entirely into the operational layers of enterprise AI, with rounds concentrated in networking silicon, chip interconnects, cybersecurity, observability, and AI-assisted chip design. The pattern reinforces a broader trend visible across recent weeks: as AI training clusters scale, investors are underwriting the connective tissue and control planes required to run them in production. Deal sizes cluster in the $100 million to $300 million range, a healthy sign that mid-cap enterprise infrastructure remains fundable outside the mega-round headlines.

Xsight Labs

Round: Growth (undisclosed round type) | Sector: Networking / Semiconductors

Xsight Labs raised more than $300 million at a $2.8 billion post-money valuation, led by Fidelity Management & Research Company with participation from Aliya Capital Partners, Atreides Management, Artisan Partners, Battery Ventures, Diagonal Capital, Intel Capital, Key1 Capital, Maverick Capital, Sienna, T. Rowe Price, Union Group, and Valor Equity Partners. The fabless semiconductor company builds programmable connectivity silicon for hyperscale, edge, and AI data center networks, positioning itself against Broadcom, Marvell, and Nvidia in the switch and interconnect market. The lineup of public-market managers alongside strategic silicon investors underscores that AI networking has become one of the most contested infrastructure categories in enterprise IT.

ThreatLocker

Round: Series F | Sector: Cybersecurity / Zero Trust

ThreatLocker closed a $190 million Series F to extend its zero trust endpoint and application-control platform into the emerging category of AI agent security. The Orlando-based company operates a deny-by-default control model that is finding renewed relevance as enterprises grapple with the identity, permissions, and data-access risks introduced by autonomous AI agents. Zero trust vendors that can extend legacy application control to non-human identities stand to benefit as buyers rewrite endpoint policies for the agent era.

Eliyan

Round: Series C | Sector: Semiconductors / AI Chip Interconnects

Eliyan raised $145 million at a $1 billion valuation, led by Seligman Ventures with participation from Cisco, Lumentum, and existing investors. The Silicon Valley company builds chiplet and SERDES interconnect technology aimed at removing the data-transfer bottlenecks between compute, memory, and networking in AI systems. Cisco and Lumentum as strategic backers signal that both the networking incumbent and the optical component supplier see chiplet interconnect as a structural bottleneck they need to help solve.

groundcover

Round: Series C | Sector: Cloud / Observability

groundcover raised $100 million in a Series C led by One Peak with Morgan Stanley Expansion Capital and existing investors Zeev Ventures, Angular Ventures, Heavybit, and Jibe, bringing total funding to $160 million and reportedly valuing the company at $500 million. The platform uses eBPF and OpenTelemetry to deliver bring-your-own-cloud observability for enterprises that want to avoid egressing telemetry data to a vendor cloud. The company reports tripling ARR over the past year, evidence that the sovereign and cost-sensitive observability thesis has become a defensible niche against the incumbent SaaS APM stack.

ChipAgents

Round: Series A (Expansion) | Sector: Semiconductors / AI Chip Design

ChipAgents expanded its Series A with a $60 million infusion to accelerate its AI-agent platform for semiconductor design, drawing on close collaboration with Nvidia. The company positions itself in the emerging category of AI-assisted electronic design automation, where autonomous agents can compress verification, layout, and RTL generation timelines. Adoption inside major chip vendors will be the leading indicator of whether AI-native EDA moves from novelty to production tooling.

The Weekly Funding Pulse tracks the most significant IT infrastructure, cloud, semiconductor, networking, and ITSM funding rounds each week. Coverage is curated for enterprise IT professionals and decision-makers.