# Emerald Development Managers

Emerald Development Managers is an Asset Manager based in New York, United States.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Founded:** 1994
- **Assets under management:** Undisclosed
- **Website:** www.emeraldmanagers.com
- **LinkedIn:** https://www.linkedin.com/company/emerald-development-managers-lp

## Regulatory record

- **CRD number:** 168169
- **SEC file number:** 802-78331
- **Registration status:** ACTIVE
- **Latest Form ADV filing:** 2026-03-30T05:00:00.000Z
- **Reports private funds:** Yes
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/168169

## About

Emerald Development Managers is an exempt reporting adviser based in New York, NY. They are.

## Sectors

- life sciences
- enterprise software
- cybersecurity
- industrial technology
- sustainability

## People

- Neil Cohen — Founder and Chairman
- Stephen H. Case — Managing Director and General Counsel
- Charles Collins — Partner

## Questions

### What is the relationship between Emerald Development Managers and American Rock Salt?

Emerald's founder Neil Cohen and partner Charles Collins co-founded American Rock Salt, the largest operating salt mine in the United States, located in Mount Morris, New York. Emerald operates as a separate investment firm, but American Rock Salt serves as both a model for its hands-on approach to asset development and an anchor portfolio position. The shared founding DNA means Emerald evaluates opportunities through the lens of operators, not just financial allocators.

### How does Emerald source its investment opportunities?

Emerald relies on principal-led sourcing through the industrial and professional networks of its founding team. Neil Cohen's background in heavy industry and his academic advisory relationships — including with Johns Hopkins University's Whiting School of Engineering — provide visibility into infrastructure-adjacent technology and project-development opportunities. Stephen Case's legal networks further support transaction origination and structured deal execution.

### What investment stages does Emerald target?

Emerald focuses on early-stage project development within tangible asset classes such as infrastructure, natural resources, and industrial operations. The firm favors greenfield and development-stage commitments where operational intervention from its principals — who have direct experience building assets like the American Rock Salt mine — can meaningfully influence project outcomes before stabilization.

### Who makes investment decisions at Emerald Development Managers?

Founder and Chairman Neil Cohen leads investment decision-making, supported by Partner Charles Collins and Managing Director Stephen Case. The compact partnership structure concentrates authority among principals with shared operating history dating back to the founding of American Rock Salt, avoiding the committee creep common at larger institutional platforms.

## Related profiles

- [Emend Vision Fund](https://altss.com/profile/emend-vision-fund)
- [Emerald Lake Capital Management](https://altss.com/profile/emerald-lake-capital-management)

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Last updated: 2026-08-14T12:30:00.000Z

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