We only do AWS

We do it best.



We only think about AWS. The cloud is complex and we believe it is better to have knowledge that is a mile deep, rather than miles wide across multiple cloud platforms.

Employee Owned

OC4 focuses on our clients because we are employee owned and our growth strategy doesn't depend on the outside investment of venture capital.


Our on-staff legal counsel and expert technical team has helped countless clients AWS solutions.


OC4 has a practicing Technology Regulatory and Compliance Attorney on staff. We help our clients develop a compliance strategy for cloud adoption.


OC4's security experts have extensive experience in heavily regulated verticals such as healthcare, finance, and legal.
Target 4

AWS Certified

We don't have a giant tech team, but we have the best. OC4 techs have the highest AWS certifications and focus on client delivery.


Will Malz

CEO & Founder

Will founded OC4 in 2008 and with his guidance OC4 has grown to become a trusted partner for many financial institutions. Will holds the highest levels of AWS certifications and focuses OC4 on client delivery and solving client challenges using the AWS suite of solutions. Will attended The University of Pennsylvania.​

Dan Ritz

Managing Partner Finance

Dan Ritz brings OC4 a broad background in financial operations, compliance, and technology. Dan’s most recent role at UBS was Global Head of Process Implementation and US Chief Operating Officer for Derivatives Trading. Dan attended college at Boston University.

John Levonick

Special Counsel

John Levonick is a practicing Regulatory Compliance Attorney with over 15 years of experience. John provides OC4 clients with an understanding of technology compliance relative to the applicable laws and best practices within each client’s specific industry. John received his Juris Doctorate from the University of Miami.


Managed Services

OC4 manages your AWS environment and allows you concentrate on your business.

AWS Design

OC4's experts have over 10 years AWS experience.


OC4 provides you with the guidance to launch your AWS cloud.


Optimize your AWS services for security, scalability, and reliability.

Compliance Advisory Services

Build compliance strategy that adheres to industry specific regulations.

Security Advisory Services

Learn and implement AWS best practices for security.

See how OC4 has helped clients.

Open Computing 4, Inc.

752 Middletown Road, Unit C
Colchester, CT 06415

Open Computing 4, Inc.

752 Middletown Road, Unit C
Colchester, CT 06415

Open Computing 4, Inc.

752 Middletown Road, Unit C
Colchester, CT 06415