Dave Zilberman, General Partner at Norwest Venture Partners
General Partner
Venture Capital  /  Enterprise  /  San Francisco

Dave
Zilberman

General Partner, Norwest Venture Partners

He wrote a check into Slack when most people thought it was a chat app. He backed DocuSign before the word "e-signature" was in every contract. Twenty-plus years of enterprise investing, and Dave Zilberman is still finding the companies that look obvious - after they've already won.

Enterprise Software Cybersecurity AI Infrastructure Cloud SaaS Data AdTech Media
"The foundation of achievement is intense desire." - Dave Zilberman
20+
Years Investing
Operator, advisor, and GP since early 2000s
35+
Investments on Record
Seed through late-stage growth equity
$3B
Norwest NVP XVI Fund
One of the largest enterprise-focused VC funds

The Pattern
Spotter

In 2010, most corporate venture arms were checking boxes. Dave Zilberman was at Comcast Ventures looking for something harder to name - the enterprise companies that would restructure how businesses run. He found Slack. He found DocuSign. He found Aporeto, which Palo Alto Networks later wanted badly enough to acquire.

The investments look obvious today. At the time, they required a specific kind of conviction: the belief that enterprise software was about to eat itself, and that the companies building for the next decade would look nothing like the ones from the last.

Norwest has an incredible reputation of partnering with disruptive entrepreneurs to build market leading companies.

Zilberman spent 15 years at Comcast Ventures - an eternity in a business where most people move every three or four. He ran their enterprise and infrastructure practice as Senior Managing Director, building a portfolio that mixed cybersecurity (BitSight), collaboration software (Slack), fintech lending (Lendio), and media (Vox Media). Patience was the strategy. He wasn't hunting for the fastest flip; he was building relationships meant to survive a full market cycle.

Before the Check Book

The Comcast chapter didn't start in a conference room. Before it, there was Flarion Technologies - a wireless broadband company racing against the shift to 4G. Zilberman was the senior business development executive. He helped raise the money. He navigated the sale. When Qualcomm paid $805 million to acquire Flarion, Zilberman watched how a large-scale acquisition actually works from inside the room where the decisions get made.

And before Flarion: Lehman Brothers, in the investment banking division covering communications and media. This was the foundation - not just the finance mechanics, but the habit of reading industries the way other people read weather. Lehman analysts in that era were watching telecoms consolidate, media fragment, and cable companies wonder what came next. Zilberman kept watching.

Early 2000s
Investment banking analyst at Lehman Brothers, covering communications and media sectors
~2004-2006
Senior business development executive at Flarion Technologies; integral to company's $805M acquisition by Qualcomm
2006
Joined Comcast Ventures as investor in enterprise software, cybersecurity, and financial services
2006-2020
Rose to Senior Managing Director at Comcast Ventures - ran enterprise and infrastructure practice for 15 years
2020
Joined Norwest Venture Partners as General Partner on the Enterprise Investment Team
2022-2024
Led investments in Diagrid, Heeler, and xtype - building out AI infrastructure and enterprise tooling bets
2025-2026
Led LlamaIndex Series A; Veza acquired by ServiceNow; led Orion Security Series A

The Norwest Move

In November 2020, Norwest Venture Partners announced Dave Zilberman as a new General Partner on the enterprise investment team. The announcement was notable not for the position but for what it said about where Norwest wanted to play. Enterprise software, cybersecurity, cloud infrastructure - the same territory Zilberman had been mapping for 15 years, now with the backing of one of the industry's oldest multi-stage funds.

Norwest has been writing checks since 1961. It manages more than $12.5 billion in capital. Its enterprise investments have included Salesforce, Uber, and Spotify. Zilberman arrived with a specific mandate: find the next layer of companies building infrastructure for how enterprises actually work in a post-cloud, AI-adjacent world.

His current portfolio reflects the thesis. LlamaIndex - the open-source framework for building LLM-powered data applications - closed a $19M Series A in March 2025, with Norwest leading. Orion Security picked up $32M in February 2026. Diagrid, building developer infrastructure on top of Dapr, raised $20M in 2022. xtype, which solves the multi-instance ServiceNow deployment problem, got $21M in 2024.

The Exits That Validate

The wins in venture happen slowly, then all at once. From his time at Comcast Ventures, the record is clear: Slack was acquired by Salesforce for $27.7 billion. DocuSign went public on Nasdaq. Aporeto was snapped up by Palo Alto Networks. EdgeConneX sold to EQT.

At Norwest, the pattern continues. Habu, the data clean room platform, was acquired by LiveRamp. Veza, which secured a $110M Series D led by Norwest in April 2025, was subsequently acquired by ServiceNow - an exit that validated both the identity security category and Zilberman's timing.

The pattern across all of these: companies solving a problem that enterprise IT departments will pay for repeatedly, year after year, because the alternative is worse. Collaboration, document workflows, network security, identity access. The boring-sounding categories that turned out to matter more than the flashy ones.

The Bets, Past and Present
Current Portfolio (Norwest)
LlamaIndex
AI Infrastructure · Series A
Orion Security
Cybersecurity · Series A
Uptycs
Cloud Security
Diagrid
Developer Infrastructure · Series A
xtype
Enterprise DevOps · Series A
Heeler
Security · Seed
Amagi Media Labs
Media Tech
Turso
Database Infrastructure
Notable Exits (Norwest)
Veza
Identity Security
Acquired by ServiceNow
Habu
Data Clean Room
Acquired by LiveRamp
Prior Portfolio (Comcast Ventures)
Slack
Collaboration
Acquired by Salesforce $27.7B
DocuSign
e-Signature
IPO · Nasdaq: DOCU
Aporeto
Network Security
Acquired by Palo Alto Networks
EdgeConneX
Data Centers
Acquired by EQT
BitSight
Cyber Risk
Vox Media
Media
Lendio
Fintech Lending
Brightside
Employee Benefits

Immigrant Drive,
GP Execution

Zilberman doesn't talk about his background much. But those who know him well describe it as the operating system underneath everything else: an immigrant mentality that treats ambition and gratitude as the same thing. He came to the U.S. and built the career through Lehman, Flarion, Comcast Ventures, and now Norwest - each step longer than the last.

His reputation inside the companies he backs is specific. Not just available - relentlessly available. Founders describe him as someone who shows up when it matters, returns the call at odd hours, and holds a board perspective that balances rigor with genuine care. "Unwavering loyalty" is the phrase that keeps appearing.

He chairs the audit committee at BellXcel, a non-profit focused on improving educational outcomes for youth. The pairing makes more sense than it looks: a GP who made it through hard work, giving back to the infrastructure that makes that possible for the next generation.

His investment focus keeps following the same fault line: where enterprise software is about to shift. AdTech, SaaS, infrastructure, security, data - and now AI. The categories change; the underlying question doesn't: which companies are building the pipes that enterprises can't turn off?

Unwavering Loyalty Constant Availability Immigrant Drive Compassion + Rigor Long-term Builder Pattern Recognition
Binghamton University
B.S. Management · Finance Concentration
Greylock Benchmark a16z Accel Bain Capital Ventures
Things Worth Knowing
$805M

The Qualcomm acquisition price for Flarion Technologies - Zilberman's first front-row seat to a major tech exit, as the executive managing the deal.

15

Years spent at Comcast Ventures before moving to Norwest - an unusual tenure in a business where three-to-four years is the norm before jumping funds.

$12.5M

His investment sweet spot. Check sizes range from $1M to $30M - early enough to shape the company, substantial enough to hold board seats.

$27.7B

Salesforce's acquisition price for Slack - one of Zilberman's Comcast Ventures bets, and one of the largest enterprise software acquisitions on record.

5

Regular co-investment partners from top-tier firms: Greylock, Benchmark, Andreessen Horowitz, Accel, and Bain Capital Ventures.

$3B

Norwest Fund NVP XVI - closed to back the next generation of market-leading companies, with enterprise as a core vertical.

Where He Looks
Enterprise SaaS
Scalable subscription software solving recurring enterprise problems. The pipes companies can't unplug.
Cybersecurity
From network security (Aporeto) to identity (Veza) to cloud risk - following where the attack surface moves.
AI Infrastructure
The frameworks, databases, and tooling that enterprises need to actually run AI in production. LlamaIndex is the bet.
Cloud Infrastructure
Data centers, distributed systems, developer tooling. The unsexy layer that everything else runs on.
Data & AdTech
How companies measure, monetize, and make sense of digital behavior. From Vox Media to Habu.
Fintech
Financial services technology at the SMB and enterprise layer. Lendio proved the thesis early.
North America First

Norwest is one of the few multi-stage funds with meaningful presence in India and Israel alongside North America. Zilberman's enterprise mandate spans the U.S. market, with a firm that can write global checks.

BASED IN
San Francisco, CA
FIRM HQ
Menlo Park, CA
On Mic
Smart Venture Podcast #143
PORTFOLIO: SLACK, DOCUSIGN

How to identify enterprise winners before the crowd, moving from corporate VC to traditional VC, and constructing a portfolio built for the long run.

Watch on YouTube →

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