Corridome
Start a build

Lead‑sourcing infrastructure for firms that have outgrown the list broker.

Built to the firm’s thesis and owned by the firm at close of engagement.

Start a buildHow it worksNext intakeQ2 2026
The problem

Rent the list, or build the pipeline.

Most lead generation is a six-figure subscription or an offshore research team. The subscription’s data is stale; the team is slow.

Generic lists. Contacts that rotted six months ago. The firms that consistently win don’t rent their data; they build proprietary systems that research and qualify in real time, and compound into a dataset the firm owns.

Corridome designs and builds those systems for the firm’s own use. The pipeline refreshes on the firm’s cadence, not a vendor’s release schedule.

When the engagement ends, you don’t have a vendor. You have a pipeline.

What the practice builds.

  1. C-01

    Proprietary lead generation platforms

    Campaign-driven sourcing · Thesis-led targeting

    Sourcing platforms built to the firm's thesis. Targets accumulate into a proprietary dataset the firm owns and extends.

    Owned by the firm
  2. C-02

    Data enrichment & relevancy scoring

    Qualification · Signal detection

    Raw lists are not a pipeline. Scoring and enrichment so the team works from a ranked shortlist, not a spreadsheet of ten thousand names.

    Ranked shortlist
  3. C-03

    Same-day list generation

    Campaign-driven sourcing

    A campaign request goes in; a qualified outreach list comes out the same day, not the same month. Research cycles collapse without sacrificing fit.

    Weeks → hours
  4. C-04

    Internal tooling for the team

    Research · Enrichment · Knowledge retrieval

    Private, firm-specific tools that let the team query the firm's own data instead of re-running the same research by hand.

    For internal use
  5. C-05

    Real-time research and qualification

    Freshness · Aggregation · Integration

    Targets researched and qualified against live sources, not a quarterly data dump. Pipelines land in the CRM and outreach stack the team already uses, so the freshest data shows up where the work already happens.

    Always current

How the work runs.

  1. 01Problem

    Engagements begin with a problem.

    Describe what you’re trying to source and what’s in the way. A scoped proposal or a decline follows within two business days.

    ≤ 2 business days
  2. 02Scope

    Scopes are fixed, deliverable-based, measured in weeks.

    Not retainer hours. Not monthly subscriptions. A typical first engagement runs four to eight weeks and is priced against specific deliverables agreed in advance.

    4–8 weeks, fixed
  3. 03Delivery

    The firm keeps what was built.

    Systems deploy where they make sense: on the firm’s own infrastructure, or hosted and operated for you. Either way, the data, the code, and the pipeline are the firm’s.

    Firm-owned
  4. 04After

    Ongoing work is optional, never automatic.

    After the initial engagement, some firms retain a small advisory relationship to extend the system as campaigns evolve. Most don’t, and that’s fine.

    Optional
The practitioner

A practice, not an agency.

Alex Stepansky, Principal at Corridome
Alex Stepansky
Principal · Corridome LLC
NYC · est. practice
Role
Principal, Corridome. Builder and engineer.
Based
New York City
Track record
Sourcing and AI-qualified pipelines across middle-market M&A, healthcare, and home services. Prior: ML at Amazon.
Education
B.S. Computer Science, Washington University in St. LouisSpecialization in scalable cloud architecture. Minor in Mathematics.
Public work
TokenInjectableDockerBuilder ↗ · open-source AWS Cloud Development Kit (CDK) construct.Towards AWS ↗ · technical writeup, Dec 2024.
Languages
English, Russian
Off-hours
Music production, weightlifting.

Tell us what you’re trying to source.

A paragraph is enough. Who the targets are, what’s in the way, and the timeline. A reply follows within two business days.

Interest (optional)
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