Ping Li

Partner at Accel

Reviewed Updated Mar 17, 2026

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Accel Partner since 2004; data infrastructure and cybersecurity expert with Big Data Fund. Portfolio: 29% cybersecurity (Snyk, Tenable, Snyk), 18% data infrastructure (Cloudera, Sumo Logic), 18% enterprise SaaS (Klaviyo, Commercetools). Known for 'cloudframe' concept—recreating mainframe tools for each new computing platform. $15M-$70M checks.

Location San Francisco Bay Area, CA

Check Size $15M-$70M

Last Verified Investment Stacklok (Seed) — 2023

Social @ping_accel LinkedIn

Stage Focus

seed series-a series-b

Sector Focus

cybersecurity saas cloud-infrastructure data-infrastructure developer-tools e-commerce

Background

Ping Li is a Partner at Accel, having joined the firm in 2004 ¹. He focuses on investing in business software applications, cloud-native technology platforms, and cybersecurity companies ¹. He helped launch and manage Accel’s $100M Big Data Fund, which backed category-defining data platforms including Cloudera ¹².

Before Accel, Li was a product line manager and director of corporate development at Juniper Networks ¹³. He started his technology career in Asia, working at Singapore Telecom and in Goldman Sachs Asia’s technology practice ¹³. He grew up in New Jersey and holds degrees from Harvard University (undergraduate) and Stanford University (graduate) ¹³.

Li has been recognized multiple times on the Forbes Midas List for enterprise and security investment outcomes, including a ranking of #78 in 2017 and #94 in 2020 for his work with Snyk ⁴⁵. He also leads Stanford University’s Accel Innovation Scholars Program ⁶.

He has served on numerous boards including Klaviyo (since November 2020), Tenable Holdings (October 2012 to May 2021), Cloudera, Lookout, Snyk, Tailscale, and Jellyfish ³⁷⁸⁹.

Stated Thesis

(Self-reported: These represent what Li says publicly about his approach. See Inferred Thesis for analysis of actual investment behavior.)

Ping Li describes his investment focus as business software applications, cloud-native technology platforms, and cybersecurity ¹. His public statements emphasize several recurring themes:

Big data as a generational platform shift: Li has long held the conviction that big data represents “a rare, once-every-few-years platform opportunity that can underpin multi-billion-dollar software companies” ². He helped create Accel’s dedicated $100M Big Data Fund to back this thesis ¹.
The “cloudframe” concept: Li coined the idea of the “cloudframe” — that every time a new computing platform emerges, all the fundamental building blocks from mainframe-era systems must be recreated. “Every time there’s a new computing platform, you basically have to re-create all the pieces of the mainframe… You still need provisioning, management, security, and you need networking” ¹⁰.
Data-driven e-commerce: On the Klaviyo investment, Li stated: “The e-commerce boom spurred by the pandemic has driven the customer experience to exist primarily online, an environment where personalization is paramount. Klaviyo’s data-driven technology gives e-commerce brands an attractive alternative to going through intermediaries for ads or selling on other marketplaces” ¹¹.
Security as a perennial investment theme: Li focused on enterprise security and infrastructure software well before it became a mainstream VC category ¹. He views security as essential infrastructure that must be rebuilt for each new computing paradigm.
Developer-centric software supply chain security: On Stacklok, Li noted: “Stacklok’s commitment to safeguarding the software supply chain is a mission we at Accel believe in deeply” ¹².

Inferred Thesis

Based on 28 verified investments in the portfolio table below:

Sector concentration (of 28 verified investments): - Cybersecurity: 8 companies (29%) — Tenable, Demisto, Snyk, Lookout, Illumio, ConductorOne, Stacklok, Semmle ¹⁷⁸⁹¹²¹³¹⁴¹⁵ - Data infrastructure & analytics: 5 companies (18%) — Cloudera, Sumo Logic, Trifacta, OtterTune, Cognite ²¹⁶¹⁷¹⁸¹⁹ - Enterprise SaaS & business software: 5 companies (18%) — Klaviyo, Commercetools, Jellyfish, RelateIQ, Split ¹¹¹²⁰²¹²² - Cloud infrastructure & networking: 4 companies (14%) — Arista Networks, Nimble Storage, Fusion-io, Tailscale ¹⁷²³ - Developer tools: 2 companies (7%) — Heptio, Code42 ¹²⁴ - Consumer/social: 3 companies (11%) — Blue Jeans Network, Renren, Ludic Labs ⁷ - Other (mobile): 1 company (4%) — Moonfish ¹

Note: Some companies span categories. Totals may exceed 28 due to overlap.

Stage distribution: - Li invests across seed through late-stage growth, with his stated sweet spot at $25M and a range of $15M to $70M ²⁵. His portfolio includes seed investments (Cloudera 2008, ConductorOne 2021, Stacklok 2023, OtterTune 2021), Series A investments (Tenable 2012, Snyk 2018, Trifacta 2012, Sumo Logic 2012, Jellyfish 2020, Tailscale 2020, Cognite 2020, Semmle 2014), and later-stage growth investments (Klaviyo Series C 2020, Commercetools Series C 2021, Jellyfish Series C 2022).

Geographic concentration: - Predominantly US-based companies, with strong Bay Area representation. Notable exceptions include Snyk (founded in Israel/London), Commercetools (Germany), Renren (China), and Cognite (Norway) ¹.

Thematic patterns: - Deep cybersecurity conviction: Security represents the largest single sector at 29% of verified investments, spanning vulnerability management (Tenable, Snyk, Semmle), mobile security (Lookout), SOAR (Demisto), zero trust/identity (ConductorOne, Illumio), and supply chain security (Stacklok). This is consistent with his stated thesis and predates the mainstream VC rush into cybersecurity. - Repeated founder backing: Li backed Craig McLuckie at Heptio (acquired by VMware) and then again at Stacklok ¹²²⁴, demonstrating a pattern of following founders across companies. - Data infrastructure as connective tissue: Many of his non-security investments (Cloudera, Sumo Logic, Trifacta, OtterTune, Klaviyo) share a common thread of companies built around data collection, processing, or analytics. - E-commerce/commerce expansion: His more recent investments in Klaviyo (2020) and Commercetools (2021) suggest a broadening into commerce-enabling platforms beyond his traditional enterprise/security core.

Co-investor patterns: - As a partner at Accel, Li typically invests alongside the Accel platform. Notable co-investors on his deals include Summit Partners (Klaviyo), Insight Partners (Jellyfish, Commercetools), Greylock (Demisto), and Tiger Global (Jellyfish) ¹¹¹³²⁰²².

Notable gap: - Despite his “cloudframe” thesis about rebuilding mainframe-era infrastructure for each new platform, his consumer/social investments (Renren, Blue Jeans, Ludic Labs) appear to have been concentrated in the 2009-2012 era, with the portfolio shifting almost entirely to enterprise thereafter.

Portfolio

Company	Year	Stage	Sector	Status	Source
Cloudera	2008	Seed	Data infrastructure	IPO (NYSE: CLDR), acquired by CD&R/KKR	²
Ludic Labs	2009	Series A	Consumer/social	Acquired by Groupon (2010)	⁷²⁶
Renren	~2009	Undisclosed	Consumer/social	IPO (NASDAQ: RENN)	⁷
Lookout	2010	Series B	Mobile security	Active	⁷²⁷
Nimble Storage	2008	Series A	Cloud storage	IPO, acquired by HPE	⁷²⁸
Fusion-io	2010	Series C	Flash storage	IPO (NASDAQ: FIO), acquired by SanDisk	⁷³⁴
Tenable	2012	Series A	Cybersecurity	IPO (NASDAQ: TENB)	⁸
Arista Networks	2012	Series A	Cloud networking	IPO (NYSE: ANET)	²³
Sumo Logic	2012	Series C	Data analytics	IPO (NASDAQ: SUMO)	¹⁶²⁹
Trifacta	2012	Series A	Data wrangling	Acquired by Alteryx	¹⁷
Blue Jeans Network	2009	Series A	Video conferencing	Acquired by Verizon	⁷
RelateIQ	2012	Series A	Enterprise SaaS (CRM)	Acquired by Salesforce ($390M)	⁷³⁰
Semmle	2014	Series A	Code security analytics	Acquired by GitHub	¹⁵
Reactivity	~2006	Early stage	Network security	Acquired by Cisco ($135M)	⁷³¹
Demisto	~2016	Series A+	Security orchestration (SOAR)	Acquired by Palo Alto Networks ($560M, 2019)	¹³
Illumio	2015	Series C	Zero trust security	Active	¹³²
Heptio	2017	Series A	Kubernetes/cloud native	Acquired by VMware ($550M)	²⁴³³
Jellyfish	2017	Seed	Engineering management	Active	²²
Snyk	2018	Series A	Developer security	Active	⁹
Tailscale	2020	Series A	Networking/VPN	Active	⁷
Cognite	2020	Series A	Industrial data/AI	Active	¹⁹
Jellyfish	2020	Series A	Engineering management	Active	²¹
Klaviyo	2020	Series C	E-commerce/marketing automation	IPO (NYSE: KVYO)	¹¹
ConductorOne	2021	Seed	Identity security	Active	¹⁴
OtterTune	2021	Seed	Database optimization/AI	Active	¹⁸
Commercetools	2021	Series C	Headless commerce	Active	²⁰
Jellyfish	2022	Series C	Engineering management	Active	²²
Stacklok	2023	Seed	Software supply chain security	Active	¹²

This table represents a partial listing of Ping Li’s investments. Multiple sources indicate he holds 17+ board and advisor roles ⁷. Only investments with verified dates and sources are included.

In Their Own Words

On the Tenable investment (2012): “Tenable is the thought leader in the rapidly growing and critical area of vulnerability assessment.” — Ping Li, General Partner at Accel Partners, Tenable press release, September 2012 ⁸

On the “cloudframe” concept (2011): “Every time there’s a new computing platform, you basically have to re-create all the pieces of the mainframe. You still need provisioning, management, security, and you need networking.” — Ping Li, AllThingsD interview, January 2011 ¹⁰

“It doesn’t have to all run on Amazon or something like that. This cloudframe idea is really about extracting applications and services from underlying hardware and resources.” — Ping Li, AllThingsD interview, January 2011 ¹⁰

On market timing and opportunity (2011): “I’m spending my time figuring which are the layers that you can build a company around and which are the ones that become features rather than products.” — Ping Li, AllThingsD interview, January 2011 ¹⁰

“The environment feels as ripe as it ever has.” — Ping Li, AllThingsD interview, January 2011 ¹⁰

On the Klaviyo investment (2020): “The e-commerce boom spurred by the pandemic has driven the customer experience to exist primarily online, an environment where personalization is paramount. Klaviyo’s data-driven technology gives e-commerce brands an attractive alternative to going through intermediaries for ads or selling on other marketplaces. It’s an intelligent enablement tool, helping them to both keep and control a direct line to their customers resulting in better data, enhanced service, and increased sales.” — Ping Li, Klaviyo Series C press release, November 2020 ¹¹

On data-driven engineering management (2020): “Businesses depend on data now more than ever, but they’re just scratching the surface. In modern organizations with distributed engineering teams and remote workforces, the need for data-driven visibility and alignment is stronger than ever. Jellyfish takes a unique approach to data-driven engineering to provide that alignment where others cannot.” — Ping Li, Jellyfish Series A press release, May 2020 ²¹

On engineering leadership (2022): “Jellyfish transforms engineering leaders from tactical executors into strategic contributors, by giving them the tools to lead the conversation and execute operational components. Today every company is a software company, and this ability to contribute data and insights from their team is more important than ever.” — Ping Li, Jellyfish Series C press release, February 2022 ²²

On the Stacklok investment (2023): “Stacklok’s commitment to safeguarding the software supply chain is a mission we at Accel believe in deeply, and as Stacklok becomes the leader in Developer Security Posture Management, we are eager to support them.” — Ping Li, Accel blog, May 2023 ¹²

On the Commercetools investment (2021): “The chance to invest in a fast-growing, innovative commerce platform was one we could not pass up. Commercetools provides e-commerce enterprises the technology necessary to capture revenue in the rapidly growing global e-commerce market.” — Ping Li, Commercetools funding announcement, September 2021 ²⁰

Personal inspiration: Li cites Leonardo da Vinci as an inspiration, admiring his “interdisciplinary talent and intellectual curiosity,” and names Moneyball as a favorite reference for its data-driven approach to “break away from traditional, outdated thinking” ¹.

What Founders Say

ConductorOne founders on choosing Accel and Ping Li (2021): Alex Bovee and Paul Querna, co-founders of ConductorOne, described their investors including Ping Li as having “track records of supporting founding teams, building great B2B SaaS companies, and domain experience in security and IT,” and wrote they “couldn’t be more excited to work with them.” — ConductorOne blog, April 2021 ¹⁴

No additional independently sourced founder testimonials were found after dedicated searching across Twitter/X, podcast transcripts, and press coverage. Ping Li maintains a relatively low public profile compared to some of his Accel peers, which limits available founder commentary.