Jobs with Startups
JobsStartupsInvestorsMCP
Startups

Cobblestone

Cobblestone logo

Cobblestone

Delinquency reduction and automation software for institutional…

getcobblestone.com
HQ: New York, NY, USA
1-10
Real Estate and Construction

Company research

Public company, workplace, funding, and market signals

Updated Jul 30, 2026

Overview

Cobblestone Labs, Inc. was a New York-based proptech/fintech startup founded in 2023 that built an all-in-one leasing platform for tenant fraud detection and income verification. It focused on helping large residential operators and institutional landlords reduce bad debt, speed leasing, and catch identity, synthetic-identity, and income fraud. The company was Y Combinator W23-backed and was acquired by 100 in June 2026; its founders subsequently joined 100 as strategic advisers.

Primary product

All-in-one leasing platform for fraud detection, automated income verification, and tenant screening

Founded

2023

Headquarters

New York, NY, United States

Team size

10-20

Work style

Onsite

Industry

Technology, Information and Internet

Sub-industry

Tenant screening and leasing fraud detection software

Offices

32 W 28th Street, Floor 5, New York, NY 10001 (NoMad), New York, NY

Business model

B2B SaaS
Enterprise software

Funding

Stage

Seed

Latest round

Seed

Seed

People & investors

Leadership

Jason Scharff

Co-Founder, CEO

Jack Mastrangelo

Co-Founder, CTO

Investors

Andreessen Horowitz
Tishman Speyer
Y Combinator

Work & culture

Engineering-first and excellence-focused; public hiring language emphasized a rare opportunity to apply top-tier engineering to a high-friction real-estate fraud problem. Public job materials also emphasized an in-person New York (NoMad) team.

Work style

Onsite

Compensation

A public Software Engineer listing showed $130,000-$200,000 per year; broader compensation/benefit details were not publicly disclosed.

Product & market

Differentiators

  • —All-in-one leasing platform for fraud detection, income verification, and tenant screening
  • —Detects identity, synthetic-identity, and income fraud
  • —Automated data collection reduces back-and-forth with tenants
  • —Integrates with existing property management systems
  • —Positions turnaround time in minutes for decisions

Technology

Incode Technologies
biometric identity verification
bank linking
payroll linking
property management system (PMS) integrations
electronic signatures

Customers

institutional landlords
large residential operators
multifamily property offices
residential real estate companies

Competitors

100

Scale & contact

Estimated revenue

About $330K ARR (2025 estimate)

Estimated monthly visits

1.5K

Traffic estimate as of Jul 2026

support@getcobblestone.com+1 856 390 7870

Signals & risks

Acquisition
Jun 2026

100 acquired Cobblestone; coverage said the Cobblestone name would be retired and the founders would join 100 as strategic advisers.

Source

Latest news

Fraud Prevention Startup 100 Acquires Cobblestone

Commercial Observer · Jun 2026

Reports that 100 acquired Cobblestone, that Cobblestone founders Jason Scharff and Jack Mastrangelo would become strategic advisers, and that the Cobblestone name would be folded into 100.

100 Named Preferred Partner by Multiple NMHC Top 50s and Acquires Cobblestone

PR Newswire · Jun 2026

Company press release announcing 100's acquisition of Cobblestone and stating the founders would join as strategic advisers.

Rental screening startup 100 acquires fraud detection firm Cobblestone Labs

SiliconANGLE · Jun 2026

Covers the acquisition, notes Cobblestone was founded in 2023, describes the fraud-detection product, and cites Y Combinator as a backer.

AboutAcquisition coverageCareersContactLinkedIn companyMulti-family pageOfficial homepageProduct overviewWorkflow automationY Combinator profile
SourcesOfficial homepageOfficial about pageOfficial product overviewOfficial multi-family pageOfficial workflow automation pageOfficial contact pageOfficial termsOfficial privacy policyLinkedIn company pageY Combinator company pageCommercial Observer acquisition coveragePRNewswire acquisition releaseSiliconANGLE acquisition coverageGetLatka revenue estimateBEAMSTART company profileBEAMSTART software engineer job

Jobs and careers at Cobblestone

0 jobs at Cobblestone

No open positions

Check back later for new openings

Explore startup hiring

Startup Hiring PulseBrowse all startup jobsJobs at Y Combinator startupsJobs at early-stage startupsJobs at venture-backed startupsReal Estate and Construction startup jobs

Jobs with Startups © 2026

Browse jobsMCP guideAboutPowered by Supabase