Sybilla Masters
Impact investorSeattle · Seed–Series B · 12 people tracked
Investment thesis
Mastersfund invests non-dilutive capital of $50K-$100K into seed-stage, women-led technology companies that already generate sales, structuring deals as convertible notes with revenue-based repayment. It requires at least one woman in a position of strategic and operational control who is appropriately titled and equitably compensated, and takes a board seat on every portfolio company. The firm argues that conventional venture capital over-invests in all-male teams, and that revenue-based funding gives investors recurring returns within three to five years while letting founders retain more equity. It emphasizes clean cap tables and sustainable, profitable business building as a path to earlier, steadier returns and higher-ROI exits.
Source: firm website, verified Aug 3, 2026.
Team · 12 people
from the firm's websiteWhat they invest in
from 5 of 10 portfolio companiesSaaS ×4AI & Machine Learning ×3Climate Tech ×2Circular Economy ×1Data & Infrastructure ×1Developer Tools ×1Digital Health ×1Enterprise Software ×1
HQs:United States×4
Investments · 10 tracked
founders shown can be your intro pathCo-investorsREFASHIOND Ventures
Affable BPM offers an AI-powered compliance platform for healthcare organizations, combining UniComply for monitoring regulations, policies, contracts, and audits with AffableFLOW for no-code workflow automation and an AI-driven compliance training LMS.
AI & Machine LearningHealthtechSaaS
Co-investorsCreative Destruction Lab (CDL)
Bold Reuse operates a full-service reusable packaging and serviceware platform, handling collection, washing, redelivery, and real-time reporting so venues can replace single-use items with reusables.
Circular EconomyClimate TechLogistics & Supply Chain
Co-investorsPortland Seed Fund
Earth Knowledge builds a petascale digital twin of the Earth and a Planetary Intelligence SaaS platform that turns complex environmental and climate data into indicators and business analytics.
AI & Machine LearningClimate TechData & InfrastructureSaaSTucson, US
Julia Armstrong D'Agnese(CEO & Co-founder)inFrank D'Agnese(President, CTO & Co-founder)Frank A. D'Agnese(Executive Officer, Director)Anthony King(Chief Information Officer & Cyber Security Officer)Sandra Lueders(Chief People & Culture Officer)
Co-investorsRockies Venture Club
Stack Moxie provides monitoring and alerting for critical marketing processes and workflows.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareMarketing TechSaaSKirkland, US
M.H. Lines(Co-Founder, CEO)Shea Chanon(Co-Founder, Operations)Steven Dunston(Co-Founder, CRO)
Co-investorsAscend Venture CapitalCervinSwan Venture FundTechstars
Portfolio news
latest coverage across their companiesStack Moxie · stackmoxie.com · Mar 3, 2025
Bold Reuse · southeastexaminer.com · Feb 28, 2025
Frequently asked questions
- How many investments has Sybilla Masters made?
- Sybilla Masters has 10 tracked investments.
- What stage does Sybilla Masters invest at?
- Sybilla Masters invests at the Seed, Series A, Series B stages.
- What is Sybilla Masters's typical check size?
- Sybilla Masters typically writes checks of $50K – $100K.
- What sectors does Sybilla Masters focus on?
- Sybilla Masters focuses on AI & Machine Learning, Impact & Social Good, SaaS, Sector Agnostic.
- Where is Sybilla Masters located?
- Sybilla Masters is headquartered in Seattle, US.
- Does Sybilla Masters lead rounds?
- Yes, Sybilla Masters leads investment rounds.
- Who does Sybilla Masters co-invest with?
- Sybilla Masters most often shares deals with Ascend Venture Capital, Cervin, Portland Seed Fund, among 6 tracked co-investors.
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