FortiGate Firewalls for Branch & Campus | Fortinet​

Steel City Consulting are an Authorized Fortinet Partner.
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Fortinet’s FortiGate branch firewalls deliver enterprise-grade security and secure connectivity for campus, headquarters, and large office environments. These specialised FortiGate models are designed to protect high-user networks with consistent policy enforcement, encrypted traffic inspection, and integrated networking capabilities.

  • Next-generation firewall security with application control, IPS, web filtering, and DNS protection

  • FortiGuard threat intelligence providing continuously updated, AI-driven security services

  • SSL/TLS inspection support to maintain visibility into encrypted campus and office traffic

  • Hardware-accelerated performance using purpose-built Fortinet security processors

  • Network segmentation and Zero Trust controls to limit lateral movement across users and devices

  • Integrated SD-WAN and FortiLink support for secure multi-site connectivity and unified wired/wireless policy enforcement

Why Choose Steel City Consulting?

As a trusted Fortinet partner, we bring decades of expertise in next-generation firewalls and security solutions.

Our team has an extensive technical understanding of Fortinet’s product portfolio – enabling us to assess, integrate, and optimise solutions for even the most complex or high-demand environments.

Expert guidance for the right fit

We don’t just sell IT hardware. Every Fortinet solution we recommend is assessed against your specific security concerns, performance requirements, and both current and future infrastructure plans. This consultative approach ensures that our guidance is aligned with your bespoke needs, so that you can invest in a new firewall with complete confidence.

Exclusive access and strategic advantages

Through our partnership with Fortinet, your business will gain access to partner-only promotions, bundled solutions, and advanced training resources. Combined with our technical expertise and ongoing support, this ensures your Fortinet firewall is not only secure and cost-optimised, but also supported by a team that is skilled and future-ready.

Expert Firewall & Security Services

When you buy Fortinet from Steel City Consulting, you’ll receive expert deployment and maximum benefits. We also provide support in the following specialist areas:

Our services What to expect
Installation & Configuration + Expert firewall pre-configuration and setup, tailored to your exact settings.
+ Custom rule creation & least-privilege access
+ Ongoing log analysis and incident alerts
+ Intrusion prevention system (IPS) integration
Penetration Testing + Internal and external testing
+ Real-world threat simulations
+ Risk scoring and remediation planning
+ Fully documented audit reports
Managed Detection & Response (MDR) + Full-spectrum endpoint, cloud, and network protection
+ 24/7 monitoring and incident response
+ Threat intelligence integration
+ Rapid containment and recovery
Ongoing Support UK-based help when you need it most, from our in-house security experts and extensive network of Fortinet-certified technicians.
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The Fortinet TradeUp Programme is a simple and cost-effective way to replace legacy or unused Fortinet hardware, protecting your existing investment and transferring existing subscription plans.

  • Exclusive Discounts: Upgrade with special pricing on the latest Fortinet hardware, bundles, and FortiGuard services.
  • Lower Support Costs: Cut costs on FortiCare and bundles while unlocking new security features.
  • No Value Lost: Carry over your existing FortiCare and FortiGuard time to your new device.
  • Future-Ready: Enjoy faster performance, stronger protection, and full Security Fabric integration.
An image of a FortiGate firewall that can be purchased as part of Fortinet's TradeUp Programme.

We’ll assess your products and work with Fortinet to generate a tailored TradeUp quote with your exclusive pricing discounts.

Contact us today

FortiFlex delivers consumption-based licensing for Fortinet’s Security Fabric. 

No over-provisioning​

Pay only for what you use with FortiFlex points.

Complete flexibility

Scale services up or down across cloud, hybrid, or on-premises with zero procurement delays.

Full visibility & control

One dashboard, unified licensing, daily billing, and unused points rollover.

Future-proof architecture

Supports hybrid mesh firewalls, FortiGate appliances & virtual deployments.

Learn about FortiFlex licensing

Looking to upgrade your security at the best possible price?

As a certified partner, we can unlock exclusive Fortinet promotions for your business, providing enhanced resilience and efficiency across your network at unbeatable discounts.

  • Bundle Packages: Integrated hardware and service solutions at excellent rates
  • Complimentary Installation: Available on select FortiGate models when paired with managed service contracts
  • Limited-time Fortinet Promotions: Offers directly from the vendor, ensuring the best possible value

When FortiGate firewalls are the core of your network security, that’s only the beginning.

Fortinet provides a wide range of protection options – delivering advanced threat prevention, visibility, and control. With the right add-ons, software, and services, you can build a fully integrated, secure, and scalable solution for your business. Learn more below.

Unlock advanced threat intelligence and real-time protection with FortiGuard security services.

Security bundle Protection & Support Level Key Features
Advanced Threat Protection (ATP) Core, network- and file-level threat protection with essential support. Intrusion Prevention System (IPS), Antivirus / Anti-malware (including sandbox-based malware analysis), Application Control.
Unified Threat Protection (UTP) ATP features + protection against web / DNS / external content threats. Everything in ATP, plus URL & DNS Filtering, Video Filtering, Anti-botnet / Command-and-Control (C2) communication protection.
Enterprise Protection (ENT / EP) Full-spectrum protection across network, file, cloud/SaaS, IoT, and attack surface visibility, with strong risk-management tools. All UTP features, plus CASB (Cloud Access Security Broker) for SaaS apps, Data Loss Prevention (DLP), IoT detection & vulnerability correlation, Attack Surface Monitoring & Risk Scoring, AI-based inline malware prevention.
Contact us to discuss FortiGuard licensing

Discover FortiOS and FortiCare: robust support out of the box, with scalable upgrades available.

Software How to access Key Features
FortiOS FortiOS is the secure, centralised OS that powers every FortiGate device. + Unified Fabric: Zero Trust, SASE, and SD-WAN with consistent policies across on-prem, cloud, and remote.
+ Accelerated Performance: SPUs deliver full SSL inspection, IPS, and NGFW at line rate.
+ Threat Prevention: IPS, anti-malware, DNS security, CDR, sandboxing, and botnet blocking.
+ Visibility & Automation: FortiView analytics, topology maps, and if-then response rules.
+ Flexible Resilience: Runs on hardware, VM, or cloud with HA, SD-WAN optimisation, and failover.
Support Package How to access Key Features
FortiCare Premium Included with all FortiGuard security service bundles. 24/7 global technical support, with one-hour response times on critical issues and next-business-day response for lower-severity issues. Premium also includes standard advanced hardware replacement, a portal for firmware and asset management, with telephone and web support.
FortiCare Elite Upraded option Significantly faster response times (15 minutes for critical issues). Access to the Elite portal, with unified device and security health dashboards and proactive alerts. Extended engineering support for long-term supported firmware (LTS).
Ask us about FortiCare support

Manage, monitor, and scale your Fortinet environment from the cloud.

Add-on Functionality Key Features Included
FortiCloud Centralised dashboard and device management. Cloud-native identity, storage & comms with SSO, MFA, encrypted collaboration. Central SaaS console for FortiGate/AP/Switch with logging & remote config. Global POPs for low-latency, sovereign, scalable security services.
FortiAnalyzer Powerful logging and analytics. Central log lake & threat intel mapped to MITRE ATT&CK. SOC automation: SIEM/SOAR playbooks, handlers, dashboards. Flexible deployment: appliance, VM, or cloud with HA scale.
FortiManager Manage multiple FortiGate firewalls and policies at scale. Single pane to manage firewalls, SD-WAN, APs & switches. Templates, APIs & ADOMs for automated, segmented control. Scales across hybrid form factors with HA & RBAC.
FortiSASE / ZTNA Enable secure remote access and zero-trust access control for hybrid workforces. Continuous ZTNA with user/device posture checks. Full SASE stack: SWG, CASB, FWaaS, RBI & SD-WAN. Global POPs with DEM, context-aware policy enforcement.
Explore Fortinet Cloud Products

Secure every edge – extend Fortinet’s protection to anywhere your data goes.

Protection Type Functionality Key Features
FortiEDR Real-time endpoint detection & response that stops breaches, eliminates dwell time, and automates remediation. NGAV with ML, exploit prevention, virtual patching. Post-infection detection with automated response. Cloud-native, lightweight, scalable to 100k+ endpoints.
FortiClient Secure access (VPN/ ZTNA), compliance enforcement, visibility, and telemetry integrated into the Fortinet Security Fabric. NGAV, exploit prevention, sandbox integration. Always-on VPN + ZTNA with posture checks. Central EMS/cloud management with compliance dashboards.
FortiAuthenticator Central identity & authentication platform (IdP / AAA) for MFA, SSO, and Zero Trust access. LDAP, SAML, RADIUS, TACACS+ support. SSO integration with Fortinet & third-party apps. Endpoint posture and identity enforcement via EMS.
FortiToken strong, flexible multi-factor authentication via hardware & mobile OTP tokens, plus push, SMS/email when needed. OATH-based OTP, mobile push, hardware tokens. Integrated with FortiGate & FortiAuthenticator. Supports SMS/email OTP and FIDO2.
Discover Fortinet Endpoint Security Tools

With so much choice, we strive to bring clarity and precision to our customers’ subscription and licensing decisions. Our experts will assess your security risks, usage patterns, and priorities to prevent overspend or underuse – ensuring your FortiGate licensing fits perfectly today and scales with you tomorrow.

Not sure where to begin?

Talk to a certified Fortinet expert. We’ll help you choose the right combination of hardware, licenses, and services.

Contact us today or book a 30-minute consultation.

Customer FAQ: FortiGate Branch & Campus Firewalls

Considering FortiGate firewalls to protect your enterprise infrastructure? Our FAQ answers 4 common questions.

1. How do FortiGate 81F, 90G, 100F and 120G differ in performance and scale?

 

Metric

81F

90G

100F

120G

Firewall Throughput (UDP)

<10 Gbps

<28 Gbps

<20 Gbps

<39 Gbps

IPS Throughput

<1.4 Gbps

<4.5 Gbps

<2.6 Gbps

<5.3 Gbps

NGFW Throughput

<1 Gbps

<2.5 Gbps

<1.6 Gbps

<3.1 Gbps

Threat Protection

<900 Mbps

<2.2 Gbps

<1 Gbps

<2.8 Gbps

IPsec VPN Throughput

<6.5 Gbps

<25 Gbps

<11.5 Gbps

<35 Gbps

Concurrent Sessions

<1.5 M

<3 M

<1.5 M

<3 M

New Sessions/sec

<45000

<124000

<56000

<140000

Firewall Policies

<5000

<5000

<10000

<10000

Primary Use Case

Small/Mid Campus

Mid Campus Edge

Mid Campus/WAN Edge

High Throughput Campus Edge

2. What are the differences in SSL and deep inspection performance across FortiGate 81F to 120G?

 

Encrypted/Inspection Metric

81F

90G

100F

120G

SSL Inspection Throughput

~715 Mbps

~2.6 Gbps

~1 Gbps

~3 Gbps

SSL VPN Throughput

~950 Mbps

~1.4 Gbps

~1 Gbps

~1.5 Gbps

Max SSL Inspection Sessions

~100 000

~300–390 000

~135 000

~315 000

3. Which FortiGate model offers the right port density for my campus or office network?

Connectivity81F90G100F120G
GE RJ45 Interfaces68~22~18
Shared/WAN/SFP Ports2 shared2x 10GE + shared2x 10GE + multiple SFP4x 10GE + 8x SFP
Uplink Scale1 Gb1/10 Gb10 Gb10 Gb
Recommended Max FortiSwitch Support24243248
Recommended Max FortiAPs96 total96 total128128

4. How should I choose between FortiGate 80F, 90G, 100F and 120G?

Deployment Best FitWhy
Lower footprint campus/office edge81FCompact throughput ~10 Gbps, ~1.5 M sessions, efficient encrypted-capable services.
Higher throughput campus edge & VPN scaling90GLarge firewall, IPSec, and session performance; mid-range enterprise campus.
Balanced through inspection + policy scale100FLarger policy tables with strong balanced NGFW, encrypted, IPS/WAN performance.
Max throughput + deep inspection for campus core120GHighest capacity in this range with strong inspection and uplink flexibility.

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