Nurturing companies to build value for
our partners, team members and communities.







We envision an ecosystem of shared resources, integrated business development and strategy, that feeds the companies and the communities we serve.

We create meaningful opportunities for technical and personal growth and advancement, enabling our company leadership to operate autonomously in areas of passion and skill.

We support our companies with the infusion of financial resources, network sharing and mentorship.

We focus on a steadily expanding service offering for our clients and healthy returns for our investors.

With a start in the trades, real
estate was a natural progression.

Then curiosity and passion took over to build out the eCos portfolio. With more than 20 years of success across the real estate, sports, waste removal, environmental services, and construction industries, the Ehrenfeld Companies leverage extensive experience, market reach and economies of scale to achieve success.

Blue Ocean is a middle-market real estate investment firm headquartered in Owings Mills, MD. Blue Ocean pursues growth nationally and actively owns multiple product types within the real estate sector including multifamily, industrial, hospitality, and self-storage. Today, the Blue Ocean portfolio is valued in excess of $500MM with over 2,000 multifamily units and 3 million square feet of commercial space.

learn more

Blue Ocean Founder, President and CEO

SPIRE Institute & Academy is where aspiring student athletes and professionals come to fuel their passion. SPIRE’s five divisions (Academy, Events, Camps, Institute, Fit) are housed in a 825,000sq ft “world-class” sports complex. With a campus on 800+ acres and 10 year master plan, SPIRE’s unique multi-layered business model addresses industry challenges, creates diverse annual revenue streams, and positions SPIRE as the premier destination for students, events and strategic affiliations that can impact the future of academics, sport and other professions.

learn more

SPIRE Managing Member

Ace provides a full range of environmental services ranging from 24-hour Spill Response and Tank Management to Environmental Services including Soil and Groundwater Remediation and Waste Transportation. Environmental Clean Up Company Baltimore, DC, and Mid-Atlantic Regions.

learn more


IET is committed to the development and implementation of a wide variety of in-situ and ex-situ remedial alternatives. Utilizing a fleet of specially designed equipment applying in-house and licensed patented technologies with 18 years of field experience, IET is able to offer clients and their customers a variety of the most effective remedial solutions.

learn more

Innovative Environmental Technologies Partner

Located in Baltimore, Maryland, NWR has established itself as a local hauler to the Greater Baltimore/DC area servicing recurring municipal customers, as well as an experienced waste consulting firm. Servicing over 300,000 units nationwide, including hundreds of senior care facilities and Fortune 500 companies, NWR has earned a reputation for industry-leading waste management, reliability, and outstanding customer service.

learn more

Northwest Refuse Partner

Acquired in 2013 by Jonathan Ehrenfeld, Atlantic Mechanical has steadily grown its client base and range of services over the years. The company has been proudly serving its clients in the greater Baltimore area for over 30 years. Atlantic specializes in commercial and residential plumbing for builders, contractors, homeowners, and multi-family property managers.

learn more

Atlantic Mechanical Managing Member

Steinberg Sports & Entertainment is a full-service athlete management firm representing NFL players. They help all of their athletes to maximize their earnings potential and build concrete foundations for every piece of their career development. Their team of experts service each client in every aspect of his career – both on and off the field.

learn more

Steinberg Sports & Entertainment Partner

Formerly the North Carroll High School, Pantherplex boasts a 50 acre footprint including several multi-purpose fields, sports courts, and just under 300,000 square feet of multi-purpose space, including several gymnasiums and an 850 seat performing arts venue. The campus has been activated in partnership with Coppermine, for sports and arts rentals and will be hosting independent camp, clinic and league programs.

Pantherplex Managing Member

Built in 1868 as the St. Mary's Seminary and acquired in 1991 as a campus for Mercyhurst College, today, the estate is an architectural landmark. With responsible stewardship and genuine care, Granite Ridge has begun to vision a modern upgrade and business strategy focused on short and long term hospitality and sports rentals on the impressive 80-acre grounds.

Granite Ridge Managing Member

Founded in 2007 as a small family-owned swim school, Triangle’s two locations in Cary and North Raleigh, NC currently service more than 980 students. The award-winning swim school focuses on building techniques with one-on-one and small group coaching. The school prides itself on their experienced trainers and individualized attention, including instructors who are ASL and special needs certified.

learn more

Triangle Swim School Managing Member


Fueling our people and communities.

eCos investments are now centered on the commercial real estate, service and sports sectors and supported by a centralized leadership team focused on finance, human and capital resources, marketing and business development.

Jonathan Ehrenfeld

Tradesman. Pioneer. Entrepreneur.

In elementary school, Jonathan was selling soda to his peers. At 19, he became a self-taught electrician, then carpenter. One could say he’s often chosen the road less traveled, taking risks and diving into opportunities that few others would have pursued, industries few were willing to touch. He’s always on the lookout for “great bones” and asking himself the same question:
What will it take to build value here?
With a focus on growing impact and achieving success in less chartered industries, he’s been willing to face rejection, and loss. He’s put his neck on the line for his investments, his principles and his people. Assessing risk, taking faith in the reward, he leads his companies with a confidence and willingness to trust his teams and try new things.

With a mentor approach to problem solving and business development, respect for team governance and autonomous management, Jonathan’s leadership is the undercurrent to success for the eCos system.

JMore Interview with Gary Stein

Elaine Cohen

Executive Assistant


Elaine is the starter engine behind much of the Ehrenfeld Companies launch activities; supporting the set-up of infrastructures from HR to IT and space allocation. Elaine is a keen juggler with organizational priorities, and will always jump in for an assist. Having been with Jonathan and his teams since early 2018, Elaine is super attuned to keeping harmony in planning, scheduling and problem solving for a diverse set of personalities and industries.

Phran Edelman

Director of AWE Fund and Sports Portfolio


Phran is a rare “left and right brain thinker”; not only is she objective and analytical, but also creative and intuitive. She has a background in film production and more than two decades in non-profit management. Phran believes that women are capable of anything and is excited to develop an investment platform focused on women-owned businesses. With talents in spatial design and project management, she will assist in managing current eCos portfolio projects, from research to strategy and implementation.

Jason Jannati

Strategic Advisor


Jason is a highly motivated individual, with strengths in team building, goal setting and sales. He brings extensive experience in entrepreneurship – investing in and developing companies centered around core values that empower the people and planet. A leader in maximizing resources and sustainable community infrastructure, Jason was recognized by the Obama administration for his contributions to the nation’s economy. Jason’s eCos role focuses on developing the platform through measurable visioning acquisitions, business development and supporting individual company infrastructures.

Hope Lavenstein

Accounting Specialist


Hope is the backbone of the finance and administrative team. Hope works quietly, in the background, to ensure the critical financial processes, accounting and analysis, are never overlooked. Known for her versatility and flexibility, she is the go-to teammate for tying loose ends and taking projects across the finish line. Her positivity, calm and constant focus on team support provides our companies a constant resource for enhanced productivity.

Simon Nadler

General Counsel


Josh Notes

Director of Mergers and Acquisitions


Josh is passionate about pursuing businesses that make a difference and are built to last. Having decades of experience as an entrepreneur and operator, Josh is most attuned to the finances, processes and resources that make a business succeed over time. Josh leads our mergers and acquisitions with efficient due diligence, sincere care for all parties involved and timely communications. His attention to detail, knowledge of deal metrics and target company numbers helps our lending partners drive deal flow through underwriting and onto the closing table.

Neil Orolin

Director of Accounting and Finance


Nicole Parker

Director of Human Resources


Nicole is passionate about people. She effortlessly walks the line between corporate compliance and maintaining the family culture that is so important to the organization overall. She is constantly looking for ways to enhance team morale and company productivity, and increase benefits while mitigating expenses. Thanks to Nicole, every employee feels valued, understood, and challenged to grow.

Juliya Sheynman

Vice President


Juliya is dedicated to building relationships and providing resources to help our people and companies thrive. Having decades of experience in non-profit management and development, Juliya is hyper-focused on mission, vision and values and works directly with company leadership teams in developing their processes, protocols and culture to support growth and team cohesion. Juliya also leads strategies in investor relations, charitable giving, marketing and communications, and supports acquisition and fundraising efforts.

Bill Unger

Director of Special Properties


Having decades of experience in process engineering, lean process improvement, facilities management and business growth and development, Bill's operational excellence allows him to excel in his role visioning and managing unique properties and projects. He excels in building community connections and partnerships, from rentals to civil support. Bill is a leader who is driven by his empathy for others, positive work ethic and a strong sense of optimism in every situation.


9 JAN 2023

eCos Acquires N. Carolina based Triangle Swim School

Ehrenfeld Companies (eCos) recently acquired Triangle Swim School in Raleigh, North Carolina. Founded in 2007 by Coach...

27 OCT 2022

IET Awarded $3MM Project in Loveland, OH

IET was awarded the Chestnut Street Groundwater Remediation Project to clean up lead and debris and do...