# 503 Partners

503 Partners is a Private Equity based in Leawood, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Leawood, United States
- **Region:** North America
- **Address:** Leawood, KS, United States
- **Founded:** 2024
- **Assets under management:** Undisclosed
- **Website:** 503partners.com
- **LinkedIn:** https://www.linkedin.com/company/503-capital-partners

## Regulatory record

- **CRD number:** 327580
- **SEC file number:** 801-130277
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/327580

## About

503 Partners is an SEC-registered investment adviser in Leawood, Kansas, registered since 2024. The firm manages $636 million in regulatory assets. It has 14 employees and 9 investment advisers.

## Sectors

- Enterprise Software
- AI/ML

## Questions

### What investment stages does 503 Partners target?

503 Partners concentrates on Seed and early Series A rounds. The firm seeks to provide initial institutional capital to capital-efficient B2B software companies, with the capacity to follow on in subsequent rounds as portfolio companies demonstrate product-market fit.

### Which sectors does 503 Partners invest in?

The firm's mandate covers enterprise SaaS, developer infrastructure, API-first platforms, and applied artificial intelligence. Observed portfolio patterns emphasize recurring-revenue business models in vertical-specific software markets, particularly those serving regulated industries like healthcare, logistics, and financial services.

### Is 503 Partners currently investing from an active fund?

Public records do not confirm the firm's current fund vintage, target size, or LP base. 503 Partners maintains a deliberately low public profile, which is characteristic of smaller regional VC firms that raise capital through limited partner relationships built on direct general partner track records rather than broad institutional marketing.

## Related profiles

- [4th Floor Investment Group](https://altss.com/profile/4th-floor-investment-group)
- [50K Ventures](https://altss.com/profile/50k-ventures)

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Last updated: 2026-06-03T20:00:00.000Z

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