Bob Spinner
Venture Partner @ Sigma Partners
San Francisco, United States
Bob Spinner is a Series C investor at Sigma Partners in San Francisco focused on SaaS and Software. Bob is a Founding Partner and Mentor Partner of Jackson Square Ventures. His participation in JSV III centers on mentorship role where he will support JSV team development, deal flow sourcing and selecting efforts, supporting JSV portfolio companies, as well as managing his portfolio companies to successful outcomes.Bob has deep expertise instart-up and scaling execution, particularly in the sales and marketing and go-to-market domains. His investments span cloud applications, enterprise software, and security and include AlienVault (acquired by AT&T), Crownpeak (acquired by K1 Ventures), Demandbase, Fortify (acquired by HP), Intacct (acquired by Sage), Marketlive (acquired by Visa Equity Partners), Hightail (acquired by OpenText), Replay (acquired by Computer Associates), Sparkcentral, Vormetric (acquired by Thales), and Waterline Data. Before his career in venture capital, Bob spent years as a startup operator at Sybase, Clarify, and Extensity, where he executed in a series of leadership roles progressing from SVP of Sales to CEO. A graduate of Washington University in St. Louis, Bob lives in Danville with his wife.
- Total investments:
- 43
- Last investment:
- Lead investor:
- 26%
Last updated:
For AI agents: llms.txt
Industries Bob Spinner invests in
Stages Bob Spinner invests in
Countries Bob Spinner invests in
Contacts
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| Work email | ||
| Personal email | ||
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Investment Focus
Industry
- SaaS 6 (14%)
- Software 6 (14%)
- Enterprise Software 6 (14%)
- Cloud Computing 4 (9%)
- Information Technology 4 (9%)
Stage
- Series C 8 (19%)
- Series D 7 (16%)
- Series B 6 (14%)
- Seed 4 (9%)
- Funding Round 4 (9%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Clearstory’s mission is to help the commercial construction industry get extra work processed and closed faster in order to reduce risk, waste less time, and increase transparency. This is done through the industry’s only Change Order Communication and workflow Platform, which supercharges extremely manual workflows and connects companies outsideof their internal financial software to resolve change orders in real-time. Along with a collaborative cloud-based COR log with real-time messaging and PDF mark-ups, Extracker includes digital Time and Material Tags, standardized Change Order Templates, trackable Change Notifications, and more, to organize and streamline the process. The software can be rolled out by Subcontractors across their entire company or General Contractors and Owners can use the software by making Extracker a project requirement for their Subcontractors. | $16M / Series B / Jun 27, 2024 | ||
| Channel99 is a B2B marketing technology platform. It unites marketing & finance teams to eliminate marketing waste and dollar inefficiencies, lower customer acquisition costs, and drive pipeline more predictably. | $5M / Seed / Nov 30, 2022 | ||
| Clearstory’s mission is to help the commercial construction industry get extra work processed and closed faster in order to reduce risk, waste less time, and increase transparency. This is done through the industry’s only Change Order Communication and workflow Platform, which supercharges extremely manual workflows and connects companies outsideof their internal financial software to resolve change orders in real-time. Along with a collaborative cloud-based COR log with real-time messaging and PDF mark-ups, Extracker includes digital Time and Material Tags, standardized Change Order Templates, trackable Change Notifications, and more, to organize and streamline the process. The software can be rolled out by Subcontractors across their entire company or General Contractors and Owners can use the software by making Extracker a project requirement for their Subcontractors. | $5.3M / Seed / Jun 08, 2021 | ||
| Do you know where your data is? Waterline’s AI-driven Data Catalog uses machine learning and AI to discover, manage and govern enterprise data at scale. Chief Data Officers, Analysts and Data Stewards use Waterline software to enable self-service analytics, data governance – including GDPR and CCPA – and data rationalization/optimization. Byconnecting the right people to the right data, Waterline Data makes Big Data easy to find and use. | $14.5M / Series C / Oct 29, 2018 | ||
| DataGrail is a data privacy startup that helps businesses navigate the growing array of privacy regulations. It constitutes part of a growing roster of platforms that are capitalizing on privacy regulations, such as GDPR in Europe and CCPA in California, by making it easier for companies to manage, automate, and grow their privacy programs. | $4M / Seed / Sep 20, 2018 | ||
| Every growth story begins with a spark—a moment when a team sees what’s possible and decides to chase it. Demandbase was built to fuel those moments.We saw revenue teams drowning in data, guessing at their next move, and struggling to create predictable pipeline. So we set out to build a platform that brings everything into focus. Today,Demandbase is the trusted pipeline AI platform that helps GTM teams understand their market, know where to aim, and act with purpose.Our technology turns complexity into clarity. It connects millions of data points into a single, meaningful view of buyers and accounts—helping companies target smarter, engage more authentically, and grow with intention.At our core, we believe meaningful growth isn’t just about bigger numbers. It’s about empowering the people behind them to do their best, most impactful work. That’s the story we’re here to help write.Products: Demandbase One, Demandbase Advertising Cloud, Demandbase Account Intelligence, and Demandbase Orchestration. | $65M / Series H / May 25, 2017 | ||
| Consumers today engage with brands and companies on social channels by sending tweets and messages stating their customer service needs openly and publicly. Many companies choose to respond to these consumers via the same channels in order to address their concerns. The Sparkcentral Platform helps customer support teams manage large volumes ofsocial inquiries in a streamlined and efficient manner. The platform pulls in the messages from these social channels and presents them to customer care teams via a secure agent console that automatically assigns the messages to the first available agent. Sparkcentral’s client roster includes Delta Air Lines, Emirates, Netflix, Nordstrom, Dropbox, Uber, and T-Mobile.The company’s client portfolio includes Formerly known as TwitSpark, Sparkcentral was incorporated in 2012 and is based in San Francisco, California. | $20M / Venture - Series Unknown / Nov 18, 2016 | ||
| AT&T CyberSecurity provides threat intelligence, collaborative defense, and security solutions for businesses. | $52M / Series E / Aug 19, 2015 | ||
| Every growth story begins with a spark—a moment when a team sees what’s possible and decides to chase it. Demandbase was built to fuel those moments.We saw revenue teams drowning in data, guessing at their next move, and struggling to create predictable pipeline. So we set out to build a platform that brings everything into focus. Today,Demandbase is the trusted pipeline AI platform that helps GTM teams understand their market, know where to aim, and act with purpose.Our technology turns complexity into clarity. It connects millions of data points into a single, meaningful view of buyers and accounts—helping companies target smarter, engage more authentically, and grow with intention.At our core, we believe meaningful growth isn’t just about bigger numbers. It’s about empowering the people behind them to do their best, most impactful work. That’s the story we’re here to help write.Products: Demandbase One, Demandbase Advertising Cloud, Demandbase Account Intelligence, and Demandbase Orchestration. | $30M / Series G / Jul 15, 2015 | ||
| Vetter Software offers cloud-based practice management software for veterinarians. Our mission is to help coordinate and improve the health of the world’s pets. | $925K / Angel / Apr 30, 2015 | ||
| See all 43 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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Fahri Diner
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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FAQ
What does Bob Spinner invest in?
Bob Spinner invests primarily in SaaS, Software and Enterprise Software startups, most often at Series C and Series D stage. Most of the 43 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Bob Spinner?
Public channels for Bob Spinner 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 Bob Spinner last invest?
The most recent investment recorded for Bob Spinner closed in Jun 2024. Shizune tracks 43 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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