Mission-Critical Projects. Delivered with Zero Downtime.

For over 60 years, Ahearn Holtzman has delivered complex construction and infrastructure projects across the Northeast. From data centers and telecom facilities to corporate offices and specialty builds, we combine legacy expertise with modern project management to ensure every job is completed on time, on budget, and without disruption.

4.9 out of 5 stars from 47 reviews
4.7/5

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4.9 out of 5 stars from 47 reviews
4.7/5

The problems we solve

Every organization faces obstacles that slow progress, drain resources, and limit growth. Whether it’s inefficiency, rising costs, compliance risks, or outdated systems, these challenges can make it hard to focus on what really matters—delivering value and staying competitive. We step in to simplify complexity, bridge gaps, and create sustainable solutions that drive results.

Challenge

Solution

Our Impact, Quantified

Trusted by Clients, Measured by Success

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Proven industry expertise

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Projects — Successfully delivered

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30+ Years in cybersecurity, including 15 as CSO for a global public bank

About us

We specialize in delivering mission-critical construction and infrastructure solutions with a focus on precision, reliability, and zero downtime. From large-scale mechanical and electrical installations to complex renovations and technology-driven upgrades, our team has the expertise to handle projects where failure is not an option.

With decades of combined experience, we bring together engineering excellence, innovative problem-solving, and a commitment to safety and compliance. Our approach goes beyond building—we partner with clients to optimize performance, reduce risk, and future-proof facilities for long-term success.

Our Services

At Ahearn Holtzman, we deliver mission-critical construction expertise that ensures every project is completed on time, on budget, and without disruption.

Construction

Construction Management

We provide complete project oversight, from pre-construction planning through delivery.

Construction Team Reviewing Project Plans on Site. Coordination and Strategy

DAS Construction Coordination

We provide seamless coordination for distributed antenna systems and wireless infrastructure.

The survey team is using a theodolite and road construction plans.

Local Law 11 Services

We specialize in delivering complete Local Law 11 (FISP) solutions — from inspections and design support to construction, restoration, and ongoing compliance.

Mission-critical expertise ❖ Zero downtime delivery ❖ Trusted by Fortune 500 ❖ NYC Local Law 11 specialists ❖ Seamless DAS coordination ❖ Full-service contracting ❖

Our Portfolios

From pre-construction planning to final inspections, we deliver the hands-on expertise utilities and contractors need to reduce delays, control cost, and build with confidence.

Rockefeller Center Media Lab
Watertown IDC Lobby Renovation
Rockefeller Center Distributed Antenna Service (DAS)
Generator Installation in NYC
Rooftop Chiller Installation
CSO Innovation Center

Why Choose Us

Trusted by Industry Leaders

Fortune 500 companies and top institutions rely on us to deliver secure, high-performance environments.

Innovation Meets Craftsmanship

We integrate modern technologies, sustainable practices, and timeless design for long-lasting results.

Proven Mission-Critical Expertise

We specialize in complex environments where every detail matters—ensuring your operations never miss a beat.

Client-First Partnership

We operate as an extension of your team, prioritizing communication, transparency, and results at every stage.

Our Process

Our process is designed to keep projects simple, transparent, and results-driven. From careful planning to flawless execution and ongoing support, we make sure every step adds value, reduces risk, and delivers outcomes you can trust.

Step 1
Plan & Prepare

We start by understanding your goals, requirements, and challenges. Our team develops a tailored strategy, budget, and timeline to set the project up for success.

 

Step 2
Build & Execute

From pre-construction through delivery, we manage every detail—coordinating contractors, overseeing quality, and ensuring compliance—while keeping you fully informed.

Step 3
Deliver & Support

We hand over a finished project on time and within budget. Our commitment continues with ongoing support to ensure long-term performance and value.

Our Process

Our beautifully designed workspaces offer hot desks, dedicated desks and private office memberships so that whatever the size of your business – thrive and grow in your new workspace.

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Private Offices

Work from a private office space with your team, while being part of the wider vibrant commons community.

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Hot & Dedicated Desks

Work in our open communal areas alongside like minded individuals who inspire.

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Events

Host your next bespoke event in one of our beautifully designed spaces.

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Meeting Rooms

Hold team meetings or host clients in our remarkable fully-serviced meeting rooms.

Save time and
book a call with us.

Have a glance at the calendar and select a good time for you.

Why We Are Different

At Aegis Information Systems, our commitment to innovation, personalized service, and expertise sets us apart from the competition.

Tailored Cloud Solutions

We don't believe in one-size-fits-all solutions. Our cloud specialists work closely with you to develop customized strategies that align with your unique business goals.

Emphasis on Partnership

Your success is our success. We view ourselves as an extension of your team, dedicated to your long-term growth and prosperity.

Proactive Managed Services

With our proactive approach to managed services, we anticipate and address issues before they impact your business, ensuring seamless operations and maximum uptime.

Sustainability Initiatives

Beyond business success, we are committed to environmental stewardship, implementing eco-friendly practices and technologies wherever possible.

Our Experience Is Your Advantage

Hear what our incredible customers have to say!

“We trusted Ahearn Holtzman with a project that couldn’t afford a single hour of downtime. They delivered flawlessly. Their team’s professionalism and planning set the standard.”

Herman Miller​
Director of Facilities, Global Media Company

“From pre-construction through final handover, the communication was clear, proactive, and transparent. I always knew exactly where we stood.”

Isabel Gabalis​​
VP of Real Estate, Fortune 500 Tech Firm

“The Local Law 11 work on our property was completed ahead of schedule and without disrupting tenants—a huge relief for ownership.”

Ashley Jones​
Property Manager, NYC Commercial Real Estate Group

“We’ve worked with other contractors before, but none compared to the attention to detail and craftsmanship that Ahearn Holtzman delivered.”

John Doe
Senior Project Manager, Financial Services Company

“The DAS coordination was seamless. They took a highly technical challenge and made it look effortless. Our wireless coverage is now flawless across multiple buildings.”

Anthony Rivera
CTO, Verizon Business

“What impressed me most was their ability to keep costs under control without compromising quality. Every dollar spent brought measurable value.”

Stephanie Hughes,
CFO, Mount Sinai Health System

"When you work with Ahearn Holtzman, you don’t just get a contractor—you get a partner who treats your project like their own.”

Caroline Mitchell
Managing Partner, Brookfield Real Estate Partners

"We had a very complex renovation inside an occupied building. Not only did they minimize disruption, but tenants praised how smooth the process was.”

Jorge Alvarez
Director of Operations, Tishman Speyer

Ready to Get Started?

Your project deserves the right team and the right approach. Let’s talk about how we can bring your vision to life—on time, on budget, and with zero compromise on quality.

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