What is SI Engineering, P.C.'s NAICS code?

SI Engineering, P.C.'s NAICS code is 237 (Heavy and Civil Engineering Construction).

Insights

Regional Expansion SI Engineering, P.C. has a strong focus on the New York City metropolitan area and New Jersey, with recent contracts spanning NYSDOT, Port Authority, and NYC agencies. This indicates ample opportunities to pursue state and municipal infrastructure, bridge, and transportation projects in the tri-state corridor.

Infrastructure Awards The firm has earned multiple ACEC New York Silver Awards and ongoing award-worthy projects. Leverage these accolades to position SI Engineering for larger, high-profile design and inspection engagements with transit authorities, port authorities, and large municipal clients.

Diversified Capabilities Capabilities across civil, structural, electrical/lighting, transportation, bridge inspection, construction management, and program management create cross-selling opportunities with agencies and owners seeking integrated engineering and PM solutions for complex projects.

Public Sector Focus Recent and ongoing engagements with NYSDOT, NYCCSA, Port Authority, and other public entities suggest a strong channel in government-led infrastructure programs, ideal for expanding design services, inspections, and standby maintenance contracts.

Growth Signals Revenue in the mid-range of $25M-$50M and a growing client base indicate capacity for additional project throughput. Target expansion into larger-scale corridor and bridge projects, while highlighting efficiency, safety, and cost-effectiveness in proposals.

SI Engineering, P.C. Tech Stack

SI Engineering, P.C. uses 8 technology products and services including iCIMS, LinkedIn Recruiter, AutoCAD, and more. Explore SI Engineering, P.C.'s tech stack below.

iCIMS

Applicant Tracking Systems

LinkedIn Recruiter

Applicant Tracking Systems

Cad & Graphics

E-commerce

Facilities Management

Microsoft Active Directory

Identity And Access Management

Constant Contact

Marketing Automation

SI Engineering, P.C. Email Formats	Example	Percentage
FLast@siengineering.com	JDoe@siengineering.com	96%
LFirst@siengineering.com	DJohn@siengineering.com	3%
FL@siengineering.com	JD@siengineering.com	1%

SI Engineering, P.C. Email Formats

Example

Percentage

FLast@siengineering.com

JDoe@siengineering.com

96%

LFirst@siengineering.com

DJohn@siengineering.com

FL@siengineering.com

JD@siengineering.com

Frequently Asked Questions

What is SI Engineering, P.C.'s phone number?

You can contact SI Engineering, P.C.'s main corporate office by phone at

+1-212-354-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is SI Engineering, P.C.'s official website and social media links?

SI Engineering, P.C.'s official website is siengineering.com and has social profiles on LinkedIn.

How much revenue does SI Engineering, P.C. generate?

As of August 2026, SI Engineering, P.C.'s annual revenue is estimated to be $25M - $50M.

What is SI Engineering, P.C.'s SIC code and NAICS code?

SI Engineering, P.C.'s SIC code is 8711 - Engineering Services and NAICS code is 237 - Heavy and Civil Engineering Construction.

How many employees does SI Engineering, P.C. have currently?

As of August 2026, SI Engineering, P.C. has approximately 131 employees across 4 continents, including North America, Europe and Asia. Key team members include Owner: P. R., Senior Procurement Manager, Mpa Delivery Partner For Gateway Development Corporation: L. E. S. and Senior Project Manager: M. S. Explore SI Engineering, P.C.'s employee directory with LeadIQ.

What industry does SI Engineering, P.C. belong to?

SI Engineering, P.C. operates in the Civil Engineering industry.

What technology does SI Engineering, P.C. use?

SI Engineering, P.C.'s tech stack includes iCIMS, LinkedIn Recruiter, AutoCAD, Shopify, Microsoft 365, Procore, Microsoft Active Directory and Constant Contact.

What is SI Engineering, P.C.'s email format?

SI Engineering, P.C.'s email format typically follows the pattern of FLast@siengineering.com. Find more SI Engineering, P.C. email formats with LeadIQ.

When was SI Engineering, P.C. founded?

SI Engineering, P.C. was founded in 2003.

SI Engineering, P.C.

Q: How many employees does SI Engineering, P.C. have currently?

SI Engineering, P.C. has approximately 131 employees.

Q: What technology does SI Engineering, P.C. use?

SI Engineering, P.C.'s tech stack includes Microsoft 365, JSON-LD, Apache, Google Analytics, SiteManager.

Civil EngineeringNew York, United States51-200 Employees

SI Engineering, P.C. is a civil engineering consulting firm based in New York City, specializing in civil, structural, electrical/lighting, and transportation engineering, as well as bridge and facility inspections, construction management and inspection, and project and program management. Its work spans water, aviation, transit, bridges, and roadway projects within the New York City metropolitan area and New Jersey, addressing infrastructure needs from local enhancements to large-scale developments and complex programs. The firm emphasizes collaboration with clients to deliver solutions that are safe, cost-effective, and sustainable, with a focus on integrity, proactivity, and reliability. Clients and partners include public sector entities and port authorities, and recent activity includes awarded contracts for design services and condition surveys, reflecting ongoing engagement in regional infrastructure projects. The company has grown rapidly and operates with an experienced team to manage diverse initiatives across multiple sectors of civil and transportation engineering.

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