Working at H2M | Glassdoor

H2M Overview

Melville, NY
201 to 500 employees
Company - Private
Architectural & Engineering Services
$50 to $100 million (USD) per year
Since our early roots, our focus has remained steadfast: to provide quality service with sound judgment and to serve as an honest professional resource to our clients. With a dedicated, responsive staff and multiple service offerings under one roof, we blend ... Read more

Mission: Providing solutions to a wide variety of markets, H2M brings the combined expertise of architectural design and building systems engineering to make your project a reality. With in-house MEP and structural teams, we’re able to take a holistic approach to project design ... Read more

Company Updates

  • As businesses begin to re-open amidst the COVID-19 pandemic, the health and well-being of our employees, clients, and community are at the forefront of our minds. As we learn to navigate through this uncertainty, H2M architects + engineers would like to assure our clients that we are fully operational and equipped to address this ever-changing situation and create tailor-made approaches to meet the needs that have become evident during this unprecedented time. See some of the ways in which H2M can provide you with peace of mind as your business begins to re-open. #architects #engineers #H2M

  • Congratulations H2M architects + engineers on taking 3rd Place in Canstruction Global Headquarters 2019 International Competition for People’s Choice! Can’t wait to see what you build this year! #canstruction #design #architecture #engineering #longisland

See AllSee All

H2M – Why Work With Us?

2018 marked H2M’s 85th anniversary. We were founded in the midst of the Great Depression by Henry “Gus” Holzmacher, who courageously started a modest civil engineering and land surveying practice out of his Bethpage, Long Island home in 1933. The nascent Grumman Aviation was his primary client. 

Robert “Bob” Holzmacher came to work for his father in 1953, and together they grew the staff to five. By 1955, business was picking up; with a little convincing, Bob’s college classmate, Norman Murrell, joined the firm. A year later, Bob’s former boss at Long Island Water Corp., Samuel McLendon, came on board, bringing along his background in sanitary engineering and water analysis. Within months, Sam set up a modest water analysis laboratory in the kitchen of H2M’s first “formal” office on West Marie Street in Hicksville. Thus H2M’s laboratory division was born. 

In December 1960, H2M celebrated the opening of its first official office building on Route 110 in Melville, just months before Gus’s sudden passing in early 1961. “This was the culmination of a long-time dream for my father. He and my mother were very proud that day,” said Bob. “His great satisfaction, seeing his engineering firm well-established and in a prestigious office building, was short-lived. But the firm continued to prosper through the years. I know that my father, in his wildest dreams, could not ever imagine the firm growing to its present size and importance.” 

H2M grew to the 50-employee level in the 1970s and to the 100-employee level in the 1980s and ‘90s, establishing its architecture group and adding its New Jersey office along the way. In the years to follow, the firm continued to diversify its professional services and market sectors, responding to Long Island’s rapidly-growing communities and related environmental concerns. And it still does today. 

Bob ran H2M until retiring in 1991, along with Senior Vice Presidents Norm Murrell and Sam McLendon. Harold Dombeck then took over the helm as President and CEO. Starting in 1965 as a sanitary engineer, Harold graduated into an executive position, overseeing H2M’s fiscal health and growth. After Harold retired in 1995, the Board of Directors elected John Molloy, who served as H2M’s President and CEO for the next 17 years. 

“I started at H2M in 1974 driving in from Brooklyn and dropping coins into the toll on the Southern State,” said John. “The firm has meant everything to me and my family and is integral to our lives. I have been honored to lead this outstanding organization for the past 17 years” 

In the last few years, H2M has opened additional offices in Albany, New York City, and Westchester, NY, to better service its upstate clients. Today, President and CEO Rich Humann, who joined H2M as a college intern in 1987, is leading the firm towards continued success. 

“I’m very optimistic about our future,” said Rich. “We have an exceptional group of clients and a very experienced and dedicated staff—it’s the perfect blueprint for success for our clients and for H2M.”

H2M designed and coordinated the relocation of its Long Island headquarters, uniting two previously separate office locations in the process. The new space, which spans over 40,000 sq. ft., incorporates an open office concept, enabling improved communication and collaboration among staff and departments. The space also features multiple "buddy areas" for impromptu group discussions and presentations. 

The space was built out entirely from scratch and incorporates a number of sustainable features. In addition to low- and zero-VOC carpeting and finishes, the new office boasts high-efficiency mechanical systems and low-flow plumbing fixtures, and furniture is composed of 84% recycled materials. To save energy, H2M utilized a layout that maximizes natural light to interior spaces as well as high-efficiency lighting fixtures and occupancy sensors.

A firm doesn’t reach its 85th birthday without the contributions of a highly skilled and dedicated staff. 

At H2M, our people are at the heart of everything we do, and we’re always seeking new talent to join our team. Whether you’re a college student or a seasoned professional, we offer career opportunities at every level, in areas ranging from architecture to administration. 

We’re passionate about our work, dedicated to our clients, and committed to our legacy. We emphasize collaboration and community involvement and promote sustainability in our practice, ensuring that the right projects are developed with minimal impact on the environment. Our integrated approach to design incorporates the diverse voices and visions of our staff into every project. Through mentoring, peer reviews, and professional development opportunities, employees at every level are offered the opportunity to share best practices and gain new experiences. 

We understand that benefits are a significant factor when selecting an employer. H2M offers a comprehensive benefits package to meet the needs of our staff and their families, including spouses, domestic partners, and dependent children. Our benefits program includes: 

Health care, dental, vision, and prescription drug coverage
Available to employees working a regular schedule of 20 or more hours per week 

401(k) retirement plan 

Profit-sharing bonus program 

Flexible schedules 

Paid time off (PTO) 

Company-paid holidays 

Flexible spending account (FSA) 

Term life insurance
Company-paid policy of $100,000, with option to purchase supplemental insurance 

Income protection
Short-term disability insurance, long-term disability insurance, supplemental pay 

Continuing education opportunities

Wellness Program
Includes weight loss program, employee softball/volleyball league, smoking cessation, health seminars 

Employee discounts
Discounts with Verizon, Plum Benefits, and local theme parks and events, to name a few

H2M Reviews

  • Featured Review

    Helpful (2)

    "Great people and career growth!"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Corporate Services in Melville, NY
    Current Employee - Corporate Services in Melville, NY
    Positive Outlook
    Approves of CEO

    I have been working at H2M full-time (More than 10 years)


    I have had the opportunity to work at a few companies in the AEC industry and I couldn't imagine working anywhere else again. First of all, the employees at H2M are wonderful! Everyone is so friendly despite the fact that many of us don’t even know each other since the company has grown so much. However, everyone I have met is driven to work hard and produce the absolute best work project – their passion is evident. In addition, the amount of charitable endeavors that are driven by my coworkers is really inspirational. Secondly, I have been afforded the opportunity to grow in my profession more than I ever thought I would. I find that the company strikes a nice balance between pushing me outside of my comfort zone while making me feel like it is ok if I made a mistake.


    I think everyone is busy and pulled in a lot of directions as a result of the company's growth. Overall, it is not a bad problem to have.

See All 45 Reviews

H2M Photos

H2M photo of: Assisting with a Habitat for Humanity build
H2M photo of: Lending a hand at Mary Brennan The INN soup kitchen
H2M photo of: Intramural Softball Trophy keeping dry, waiting for the game to start.
H2M photo of: Marcum Workplace Challenge 2018
H2M photo of: Canstruction 2018- Yellow Submarine
H2M photo of: National Engineering Day 2018
See All PhotosSee All

H2M Interviews



Getting an Interview

Getting an Interview





    Staff Engineer Interview

    Anonymous Employee in Melville, NY
    Accepted Offer
    Positive Experience
    Easy Interview


    I applied through other source. I interviewed at H2M (Melville, NY).


    The questions I was asked were very fair and straight forward, and the interview was more of a conversation than a test. If you've made it as far as an in-person interview, they likely just want to get to know you and hear you talk about your experience.
    What to expect:
    you'll have a brief interview with the HR person you've been in contact with (mostly questions about your resume what you know about H2M)
    Then a second interview with the supervisor/manager that's hiring.
    Definitely follow up with thank you emails and be patient to hear back - In my case, it was a couple of weeks before I was given my offer, but that time can vary depending on how soon they're looking to fill the position.

    Interview Questions

See All 12 Interviews

H2M Awards & Accolades

  • ACEC NY Platinum Award, American Council of Engineering Companies (ACEC), 2018
  • ACEC NY Diamond Award, American Council of Engineering Companies (ACEC), 2018

Work at H2M? Share Your Experiences

  • Star
  • Star
  • Star
  • Star
  • Star
Click to Rate