Mark Milastsivy
FounderFounder&CEO of Firstbase.io. Based in NYC.
Founder profile As recorded 2026-09-15
Browser storage is unavailable. Keep this page open and export your collection before leaving.
Accounting finance ops
Firstbase.io
Overview
Incorporation, compliance, bookkeeping, and taxes – all in one place.
Company description As recorded 2026-11-08
Founders & team
50team members reported
Source-reported As recorded 2026-09-15
Founded 2019 · Source
News & product activity
Cohort membership
Winter 2021Winter 2021
Original evidence ↗Sources & observations
Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedNew York City, NY, USA; Remote
Pricing evidenceA pricing page was detected
Maturity: Launched · 4 of 6 areas documented
Source-based assessment · automated evidence rules
The company website offers product access through a trial, free start, app download, purchase, or onboarding with existing-account login. Customer adoption is not established by this evidence.
Company website: home Checked 2026-09-23 · Company website: home Checked 2026-09-23
Get started
Sign in
Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.
- Product overviewSource description Checked 2026-11-08
- Product visualsNot documented
- Founders & originsTeam information
- Business model & pricingPricing page detected on company website; plans not reviewed Checked 2026-11-11
- Funding & ownershipNot documented
- Dated milestonesDated source activity: 2021 Q1 (quarter only)
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearpricing page observed
Similar businesses
Campfire is the AI-native ERP built for lean finance teams. Automate reconciliations, close faster, and scale revenue without adding headcount.
Founders · Product · How it works
- Founded
- 2023
- Team
- 105 people
Same product type · Industry software
The world’s most important organizations deserve the world’s best financial infrastructure. We’re here to make sure they do. At Givefront, we've built a modern financial management platform designed specifically for nonprofits. With…
Founders · Product
- Founded
- 2023
- Team
- 6 people
Same product type · Industry software
Greenboard is the AI-native system of action for SEC and FINRA compliance: archiving, supervision, employee, marketing and firm compliance on one platform.
Founders · Product · How it works
- Founded
- 2023
- Team
- 35 people
Same product type · Industry software
An AI native financial institution. We're making financial services fast and affordable for all, starting with accounting.
Founders
- Founded
- 2025
- Team
- 5 people
Same product type · Industry software
A live model of each customer, built from their Slack, Linear and Pylon.
Founders · Product
- Founded
- 2026
- Team
- 2 people
Same product type · Industry software
Elevate your financial advice firm with Saturn AI, the leading AI solution for Financial Advisory, designed to harness data insights, automate workflows like annual reviews and streamline administrative tasks.
Founders · Product · How it works
- Founded
- 2023
- Team
- 18 people
Same product type · Industry software