Gregory Gretsch
Managing Director @ Sigma Partners
San Francisco, United States
Gregory Gretsch is a Series B investor at Sigma Partners in San Francisco focused on Software and Internet. Greg is a Founding Partner and Managing Director of Jackson Square Ventures. He investments in potentially category-leading companies in SaaS, sales & marketing, consumer, and marketplaces. His investments include Upwork (second largest shareholder at IPO - UPWK), Responsys (IPO - acquired by Oracle), Strava, Toutapp (acquired by Marketo),Equallogic (acquired by Dell), Jellyvision, Jackbox Games, Doxo, and Talking Blocks (acquired by HP).Prior to entering venture, Greg was a serial entrepreneur, founding three companies, including Connectify, which was acquired by Kana Communications (now Kana Software). A graduate of the University of Georgia, Greg lives in San Francisco with his wife and four sons.
- Total investments:
- 47
- Last investment:
- Lead investor:
- 38%
Last updated:
For AI agents: llms.txt
Industries Gregory Gretsch invests in
Stages Gregory Gretsch invests in
Countries Gregory Gretsch invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Series A
- $2M–$11M
- Series B
- $5M–$15M
- Series C
- $7.3M–$27M
Investment Focus
Industry
- Software 9 (19%)
- Internet 6 (13%)
- Enterprise Software 4 (9%)
- Mobile 3 (6%)
- SaaS 2 (4%)
Stage
- Series B 11 (23%)
- Series A 8 (17%)
- Series C 8 (17%)
- Series D 4 (9%)
- Seed 3 (6%)
Country
- United States 16 (34%)
- Chile 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Provenance is the system of record for financial models, bringing version control, auditability, and AI-powered change analysis to Excel workflows. It replaces fragmented review processes with a unified platform for tracking, validating, and approving model changes. | Venture - Series Unknown / Feb 26, 2026 | ||
| GitLaw is a free and simple way to create and organize legal docs. GitLaw is a new paradigm for accessing legal documents GitLaw is an open repository for legal contracts, powered by AI. | $3M / Pre-Seed / Nov 03, 2025 | ||
| Strava is an online network where runners and cyclists can record their activities, compare performance, and compete with their community.Founded in 2009, millions of athletes have joined Strava for the competition and camaraderie found in tracking and sharing their fitness activities. The company’s free mobile apps and website help membersdiscover and plan workouts, record and share activities, and analyze and compare performance. Strava’s ability to connect athletes around the world makes fitness a more social experience, providing extra motivation even when training alone. | May 22, 2025 | ||
| Ziplines Education, an industry-leading education company, partners with universities to deliver industry-focused certificate courses that prepare professionals for today’s digital-first workforce so individuals can confidently pursue the career they’ve always wanted. The award-winning industry innovator launched in 2017 as GreenFig and relaunchedas Ziplines Education in early 2024. Today, dozens of leading U.S. colleges and universities trust Ziplines Education as their continuing education partner, including the University of Virginia School of Continuing and Professional Studies, Texas Tech University, and the University of North Carolina at Charlotte. To learn more about the company, visit ziplines.com and follow them on @ZiplinesEducation on Linkedin, Facebook, Instagram, and YouTube, and on @ZiplinesEdu on Twitter. | $6.4M / Series A / Feb 21, 2024 | ||
| Doxo is an all-in-one bill pay service that facilitates secure payment to any biller with any payment method on any device. It currently serves over 7 million users who make payments to 120k local and national businesses, making doxo the largest bill pay directory in the nation. Billers on the network get paid directly and consumers have completebills pay independence over when and how they pay their bills. The company more than doubled its customer base in 2018 and is expanding its team to further accelerate growth and change the bill pay landscape to focus on the customer. doxo investors include MDV, Sigma Partners, and Bezos Expeditions. | $18.5M / Series C / Mar 16, 2022 | ||
| Zenput is how top operators elevate team execution in every store. Restaurant, retail, and other multi-unit operators such as Chipotle, P.F. Chang’s, Domino's, and 7-Eleven use the platform to automate how operating procedures and key initiatives are rolled-out and enforced. Supporting 40,000 locations in over 35 countries, Zenput makes everyfield and store employee more productive and better equipped to do their jobs well. | $27M / Series C / Jul 20, 2021 | ||
| Strava is an online network where runners and cyclists can record their activities, compare performance, and compete with their community.Founded in 2009, millions of athletes have joined Strava for the competition and camaraderie found in tracking and sharing their fitness activities. The company’s free mobile apps and website help membersdiscover and plan workouts, record and share activities, and analyze and compare performance. Strava’s ability to connect athletes around the world makes fitness a more social experience, providing extra motivation even when training alone. | $110M / Series F / Nov 17, 2020 | ||
| Zenput is how top operators elevate team execution in every store. Restaurant, retail, and other multi-unit operators such as Chipotle, P.F. Chang’s, Domino's, and 7-Eleven use the platform to automate how operating procedures and key initiatives are rolled-out and enforced. Supporting 40,000 locations in over 35 countries, Zenput makes everyfield and store employee more productive and better equipped to do their jobs well. | $13.3M / Series B / Sep 30, 2019 | ||
| Cornershop is an on-demand grocery delivery service for the Latin American market.Founded simultaneously in Santiago, Chile, and Mexico City in 2015, we now operate in 8 countries across the Americas.In July 2020, Uber acquired a majority stake in the company. This provided an important injection of capital and allows the company to access moreresources to continue building and improving its service over the upcoming years. Cornershop Mexico was not part of the transaction and will continue to operate independently while waiting for approval from the Mexican antitrust authorities (COFECE). | $21M / Series B / May 04, 2017 | ||
| Strava is an online network where runners and cyclists can record their activities, compare performance, and compete with their community.Founded in 2009, millions of athletes have joined Strava for the competition and camaraderie found in tracking and sharing their fitness activities. The company’s free mobile apps and website help membersdiscover and plan workouts, record and share activities, and analyze and compare performance. Strava’s ability to connect athletes around the world makes fitness a more social experience, providing extra motivation even when training alone. | Series E / Feb 16, 2017 | ||
| See all 47 investments → | |||
Co-Investors
About Sigma Partners
Sigma Partners is a venture capital firm, founded in 1984, that has invested in over a hundred early stage companies and has over $2 billion under management. In 2007, it raised $500 million for its most recent fund, named Sigma Partners 8.
Sigma Partners Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Clifford Haas
Managing Director
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Gardner C. Hendrie
Partner
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Lawrence G. Finch
Managing Director
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Wade Woodson
Managing Director
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Fahri Diner
Managing Director
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FAQ
What does Gregory Gretsch invest in?
Gregory Gretsch invests primarily in Software, Internet and Enterprise Software startups, most often at Series B and Series A stage. Most of the 47 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Gregory Gretsch's check size?
Gregory Gretsch typically joins rounds of $2M–$11M at Series A, $5M–$15M at Series B and $7.3M–$27M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Gregory Gretsch participates in.
How do I contact Gregory Gretsch?
Public channels for Gregory Gretsch include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Gregory Gretsch last invest?
The most recent investment recorded for Gregory Gretsch closed in Feb 2026. Shizune tracks 47 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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