Fundraising Fox

Sybilla Masters

Impact investor

Seattle · Seed–Series B · 12 people tracked

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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.

Stage
Seed–Series B
Check
$50K – $100K
HQ
Seattle, US
Leads rounds
Leads
Instruments
Debt · Equity
Founded
2018
Tracked investments
10

Team · 12 people

from the firm's website

What they invest in

from 5 of 10 portfolio companies

SaaS ×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 path
Advocatadvocat.ai

Co-investorsREFASHIOND Ventures

Affablebpmaffablebpm.comin

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 Reuseboldreuse.comin

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 Knowledgeearthknowledge.netin

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)

fyriifyrii.ai
Livingheywelllivingheywell.com
Loopedsolutionsloopedsolutions.comin𝕏

Looped Solutions is a women-led technology company that builds cross-platform applications for private, secure communication between service providers, agencies, and their networks.

Digital HealthImpact & Social GoodSaaS

Kara Wasser(Founder)

Pagedip Content Techpagedip.com

Co-investorsRockies Venture Club

Parkside Interactiveparkside-interactive.com
Stack Moxiestackmoxie.comin𝕏

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 companies

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.

Images

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