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 Recent contract wins with Port Authority and NYSDOT, plus ongoing work with NYC metro area and New Jersey, indicate strong growth in public sector civil and structural projects that can be leveraged to cross-sell design, inspection, and program management services to transportation and port authorities.

Infrastructure focus Awarded ACEC Silver Awards and multiple infrastructure-focused contracts suggest SI Engineering is competitive in complex projects; this positions the firm well to pursue additional design, inspection, and construction management opportunities across bridges, roadways, water, and transit sectors.

Service breadth Expertise across civil, structural, electrical/lighting, transportation, inspection, and program management enables bundled service proposals for integrated projects, appealing to agencies seeking single-vendor solutions and potential efficiency gains.

Public sector traction Frequent engagements with NYSDOT, NYCSCA, and Port Authority indicate a strong public-sector footprint; target opportunities include maintenance, rehabilitation, standby design services, and ongoing CM/PM support for priority regional infrastructure.

Sustainable growth Rapid growth with a mid-sized employee base and multi-million dollar revenue signals capacity to scale for larger or more complex commissions; pursue strategic partnerships, repeat business, and regional expansion to win larger project scopes.

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

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

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

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

As of July 2026, SI Engineering, P.C. has approximately 132 employees across 4 continents, including North AmericaEuropeAfrica. Key team members include Owner: P. R.Senior Project Manager: M. S.Marketing Manager: R. J.. 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 iCIMSLinkedIn RecruiterAutoCADShopifyMicrosoft 365ProcoreMicrosoft Active DirectoryConstant 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 132 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.

Insights

Similar companies to SI Engineering, P.C.

Stantec

AECOM

Gannett Fleming

WSP

Arcadis

Parsons Corporation

CDM Smith

HDR

Atkins