Sigma Prime Ventures, Llc
Venture capitalCampbell · Series A–Series B · 5 people tracked
Investment thesis
Early-stage investor focused on Boston, New York and Atlanta in SaaS, cloud, mobile and technology-enabled service companies; team brings operator experience—10 founded, 10 run, $4.2B+ exits.
Source: firm website, verified Aug 18, 2026.
Team · 5 people
from public directories
What they invest in
from 4 of 6 portfolio companiesAI & Machine Learning ×3Marketing Tech ×2SaaS ×2AdTech ×1Deep Tech ×1Enterprise Software ×1Hardware ×1IoT ×1
HQs:United States×6
Investments · 6 tracked
founders shown can be your intro pathCallMiner provides an AI-powered conversation intelligence and customer experience automation platform that captures and analyzes omnichannel customer interactions such as calls, emails, texts, and surveys.
AI & Machine LearningEnterprise SoftwareSaaSWaltham, US
Jeffrey Gallino(Executive Officer, Director)Terence M. Leahy(Executive Officer, Director)Jeff Gallino(CEO & Founder)Jonathan Ranger(Executive Officer)Robert Lane(Executive Officer)Bruce McMahon(Executive Officer)
Co-investorsGoldman SachsHamilton LaneIn-Q-TelEscalate Capital PartnersGutbrain VenturesSpringcoast Capital Partners
Bedford, US
Bruce Reading(Executive Officer, Director)
BoardJosaphat Tango(Director)Patrick Morley(Director)Larry Walton(Director)Thomas Erickson(Director)
Board seatJohn Mandile· per SEC Form D · filed Jul 2015
Cloud infrastructure cost and performance management platform.
Boston, US
Joe Kinsella(Chief Technology Officer and member of Board of Directors)Daniel Phillips(Executive Officer, Director)Dave Eicher(Chief Operating Officer, Secretary, and Treasurer)
BoardRobert Davoli(Member of Board of Directors)Lawrence Begley(Member of Board of Directors)Bob Brennan(Member of Board of Directors)
Co-investors.406 VenturesScale Venture Partners
Movable Ink offers AI-driven personalization software, including its Studio and Da Vinci products, that automatically generates and curates content, send times, and frequency to personalize customer messages such as email at the moment of engagement.
AI & Machine LearningMarketing TechSaaSWaltham, US
Gregory Leibon(Executive Officer, Director)Ken MacAskill(Executive Officer)James Glover(Executive Officer, Director)
Co-investorsCeltic House Venture PartnersContour Venture PartnersEscalate Capital Partnersm]x[v CapitalMI VenturesRunway Venture Partners+4 more
R2 Semiconductor develops power management semiconductor technology, including envelope tracking for RF power amplifiers and core power management for multi-core application processors and digital SoCs.
Deep TechHardwareIoTSemiconductorsSunnyvale, US
DAVID FISHER(Executive Officer, Director)ANDREW HARTLAND(Executive Officer)MICHAEL GOGUEN(Director)
BoardFAHRI DINER(Director)ROBERT SCHWARTZ(Director)BOB PAVEY(Director)
Co-investorsThird Point VenturesTwo Bear Capital
TVision measures TV viewer presence and attention using in-home computer-vision technology, IoT, and data processing applied to a nationally representative household panel, producing second-by-second attention and engagement metrics.
AdTechAI & Machine LearningMarketing TechMedia & EntertainmentCambridge, US
Yanfeng Liu(Executive Officer, Director)Daniel Schiffman(Executive Officer, Director)
BoardBob Mason(Director)
Co-investorsAccompliceGolden VenturesBantam GroupDG Daiwa VenturesFairhaven Capital PartnersFlow Capital+8 more
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Portfolio news
latest coverage across their companiesTVision Insights · finance.yahoo.com · May 6, 2026
R2 Semiconductor · nasdaqprivatemarket.com · Apr 3, 2026
Frequently asked questions
- What stage does Sigma Prime Ventures, Llc invest at?
- Sigma Prime Ventures, Llc invests at the Series A, Series B stages.
- What is Sigma Prime Ventures, Llc's typical check size?
- Sigma Prime Ventures, Llc typically writes checks of $1M – $10M.
- What sectors does Sigma Prime Ventures, Llc focus on?
- Sigma Prime Ventures, Llc focuses on AI & Machine Learning, Data & Infrastructure, Enterprise Software, SaaS.
- Where is Sigma Prime Ventures, Llc located?
- Sigma Prime Ventures, Llc is headquartered in Campbell, US.
- Does Sigma Prime Ventures, Llc lead rounds?
- Sigma Prime Ventures, Llc typically participates in rounds rather than leading them.
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