Critical Facilities Management

Ascent Critical Facilities Management: 24x7x365 solutions and resources specifically for you.


Ascent Engineering: From concept to creation, inside and out, your mission critical operation engineered your way.


Ascent Construction: In every joint, at every point, your mission critical operation built to your specs.

Data Centers

Ascent Data Centers: Customized at every point to meet your needs and your objectives.

Why Ascent

Design, engineering, construction and operations solutions to make your mission critical operations reality.

News & Insights

News, stories and insight into how Ascent is Elevating Mission Critical.

Why Ascent

We understand that you have needs to fulfill. That you have goals, that you have objectives…

That you have a mission.

At Ascent, we understand, above all, that you have a choice. As a leader in the design, engineering, construction and operation of data centers and facilities, we want to be your choice.

That’s why everything we do comes down to a simple mantra:

Elevating Mission Critical

why ascent

Philosophy and Approach

Elevating Mission Critical

These three words represent a philosophy we live by in every aspect. They are the approach we take to every challenge, every solution, every day, in every way. It means we are here to keep you moving, your operations running, and your things working the way you want them to. From designing, building, operating and optimizing data centers to providing complete and transparent management of your critical assets through our Navigator platform, we empower and equip you to succeed. Ascent is your guide… Ascent is Your Way to Uptime.

Find out more about how we’re Elevating Mission Critical and how we’re different:

Overview and History

In 1998, with a goal to help customers elevate mission critical functions in every capacity, Ascent was founded. Headquartered in St. Louis, Missouri, the company quickly became a leading provider across the full life cycle of mission critical operations.

From design to engineering, construction to operation, Ascent has assembled a team of industry experts to empower customers to reduce risk, optimize spend and gain more control over their environment.

This is a brief history of Ascent…


It all starts here, as founder Phil Horstmann launches Ascent with a goal to help customers manage and maintain mission critical infrastructure.


A year later, Robert Painter, currently President and co-owner of Ascent, joins the team in an engineering and construction management role.


Jamie Lester, currently Vice President of Finance and co-owner of Ascent, comes on board, joining the team in an accounting and administration role.

To support customer demand, Ascent introduces Engineering, Project Management and Construction services.


Ascent opens 24×7 mission critical Operations Center to support clients around the clock.


Brad Pauley, currently Vice President of Engineering & Construction and co-owner of Ascent, joins the team in an engineering and construction management role.


Ascent identifies need for hyper-entitled data center solutions and launches its wholesale data center development program.


Global Cloud Services Provider selects Ascent’s Northlake project CH1, becomes one of the world’s largest data centers.

Ascent grows its in-house construction management team.


Illinois Chamber and Illinois Development Council award Ascent with Edie Award.

Ascent raises substantial equity to fund its second Northlake data center development, CH2 Data Center.

Ascent further expands critical infrastructure operations nationally.


Ascent delivers first custom data center suite for Fortune 100 client at CH2.


A new HQ – Ascent opens new headquarters in St. Louis.

Ascent among Top 10 Private Business Job Creators within Missouri.


Ascent delivers multiple design-build, custom data center suites; Carter Validus Mission Critical REIT purchases CH2 Data Center.


Uptime & Visibility – Ascent launches next generation Navigator Operational Platform.

Texas-bound! Ascent enters Dallas with DAL1 EF5 hardened data center.


Ascent heads south… and north, entering Atlanta and Toronto markets with the acquisition and development of highly entitled, enterprise grade data centers.


Ascent enters into partnership with Stone Point Capital and Lincoln Property Company to further expand Data Center Operational, Engineering and Critical Project Delivery services.


25 years of Elevating Mission Critical… Here’s to the future and beyond!


When Ascent says “Elevating Mission Critical” that applies as much to the leadership team as it does to the company philosophy. Leveraging unique expertise and insight, the Ascent leadership team works closely with clients, partnering together as we navigate the challenges around the design, engineering, deployment, maintenance, employment and operation of Data Centers and Mission Critical Sites and Infrastructure.

As a provider of customer-driven solutions, we love sharing news about project and delivery innovations. Find all the latest right here.

Connect with Us

To learn more about Ascent and our offerings, contact us today!