What Annex Consulting Group does

Annex Consulting Group is a Vancouver-based, privately held IT and management consulting firm founded in 1998, operating in the 101–250 employee range. The company runs an integrated IT staffing and talent solutions platform branded as S.i. Systems, positioned as Canada's largest pure-play IT staffing agency. Its core technology stack combines a candidate/employer portal infrastructure with a proprietary contractor payroll offering known as Flo-Thru, and supports both B2B placement workflows and content-driven candidate engagement.

The platform delivers five interconnected services: Contract Staffing for on-demand IT resources, Direct Hire for permanent placements, Contractor Payroll Services (Flo-Thru) for streamlined contingent workforce administration, Professional Services SOW for end-to-end project delivery, and S.i. PODs for agile team scaling on modernization initiatives. Customer coverage spans 12 named verticals, with Public Sector, Financial Services, Healthcare, and Software & IT flagged as primary segments, and additional exposure to Natural Resources, Retail, Telecom, Utilities, Education, Systems Integrators & Consulting, Transportation, and Engineering & Construction.

Revenue is generated through three primary streams: managed-services style mark-up fees on contractor bill rates for contract staffing, transaction-based placement fees for direct hire, and administrative/professional services fees from contractor payroll processing. Distribution is sales-led and direct, with enterprise engagement via employer portals and quote-based pricing. Operations are headquartered in Vancouver, Canada, with an active extension into the United States via a parallel US portal.

Name

Annex Consulting Group

Legal name

S.i. Systems

Website

https://annexgroup.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

Annex Consulting Group, operating as S.i. Systems, is a Vancouver-based IT staffing and talent solutions firm serving Canadian and US employers across 12 verticals with contract staffing, direct hire, proprietary contractor payroll (Flo-Thru), and agile pod-team delivery.

Ownership category

akta.pro rank

Product category

IT Consulting Services

NAICS

Human Resources Consulting Services (541612)

SIC

Services-Employment Agencies (7361)

akta.pro primary industry

Professional & Technical Direct Hire (IT, Engineering, Finance, Healthcare) (BPACAFAC)

akta.pro secondary industry

Remote & Global/Multilingual Direct Hire (BPACAFAO)

Keywords

• IT staffing services
• Management consulting
• Contract staffing
• Direct hire placement
• Talent acquisition

Headquarters

HQ city

Vancouver

HQ country

Canada

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Contract Staffing Services: Mark-up fees on contractor hourly rates for placing IT professionals in contract roles with client organizations.
2. Direct Hire Placement: Sourcing and screening full-time professionals for client teams, generating placement fees for successful hires.
3. Contractor Payroll Services (Flo-Thru™): Payroll processing and management services for contractors, generating administrative fees from employers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Annex Consulting Group provides IT staffing and talent solutions for Canadian businesses. Core offerings include on-demand contract staffing, direct hire placement for permanent roles, contractor payroll management via the Flo-Thru™ service, Professional Services SOW project delivery, and Agile POD teams for IT modernization projects. The firm also publishes educational content including the 2025 Canadian IT Hiring Trends & Salary Guide.

Product overview

S.i. Systems operates as a unified staffing and talent solutions platform offering five interconnected core services: Contract Staffing for on-demand IT resources, Direct Hire for permanent placements, Contractor Payroll Services (Flo-Thru™) for streamlined workforce management, Professional Services SOW for project-based engagements, and S.i. PODs for agile team scaling. The platform is complemented by a resources library featuring eBooks, whitepapers, and case studies that support both talent acquisition and career development.

Differentiator

Problem solved

Functional benefit

Products and services

• Contract Staffing
• Direct Hire
• Contractor Payroll Services (Flo-Thru™)
• Professional Services SOW
• S.i. PODs

Quantifiable outcome

• Active job board with 1,061 positions and 146 new listings weekly

Segments12 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators2 records

Recent moves4 records

Expansion highlights5 records

Broad incumbents

• Randstad: One of the world's largest HR services firms with significant IT staffing capabilities. Comparable to S.i. Systems in contract and permanent IT placement, but with a global footprint and broader service portfolio including RPO and MSP programs.
• Robert Half International: Global staffing and consulting firm with a dedicated technology placement division (Robert Half Technology). Directly comparable to S.i. Systems as a provider of contract and direct-hire IT talent, but operates at much larger scale and across multiple geographies.
• Hays plc: Global specialist staffing firm with deep IT and technology practice. Comparable to S.i. Systems in contract and direct-hire IT recruitment, with a similarly vertical-focused go-to-market but operating across more geographies.
• Experis (ManpowerGroup): ManpowerGroup's IT professional resourcing and consulting brand. Comparable to S.i. Systems in IT contract staffing and project delivery, but with global scale and parent-company back-office capabilities.

Emerging players

• Toptal: Online marketplace for elite freelance technology talent. Comparable to S.i. Systems in serving enterprise IT hiring needs but with a marketplace/tech platform model rather than traditional recruiter-led staffing.

Direct peers

• Modis (Akkodis): Akkodis (formerly Modis) is a global IT and engineering staffing and consulting brand under Adecco. Comparable to S.i. Systems in IT staffing plus higher-value agile/digital engineering POD-style engagements.
• TEKsystems: Allegis Group's flagship IT staffing brand, providing contract, direct hire, and managed services for IT and engineering roles. Directly comparable to S.i. Systems in service mix and target buyer profile.
• Apex Systems: IT staffing and services firm providing contract, direct hire, and project-based IT talent. Closely comparable to S.i. Systems in service mix, vertical targeting (including public sector and financial services), and delivery model.
• Insight Global: North American staffing firm specializing in IT, engineering, and professional talent. Closely comparable to S.i. Systems in contract staffing, direct hire, and managed services delivery to enterprise and public-sector clients.

Others

• Magnet Forensics: Canadian-headquartered technology firm (Waterloo, ON) — included as a regional tech employer benchmark rather than a direct staffing peer, illustrating the type of Canadian tech employer S.i. Systems serves with its IT placement services.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/AnnexGroup
• LinkedInlinkedin.com/company/annex-consulting-group

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Annex Consulting Group