How to Choose The Right Corporate Sim-Only Plan in Singapore

As businesses grow more mobile and remote work becomes the norm, choosing the right corporate SIM-only plan matters more than ever. A good plan keeps your team connected without overspending and that’s where CIS plans, or Corporate Individual Schemes, come in.

These exclusive mobile plans are designed for employees of companies partnered with a telco. They often offer better data bundles, lower monthly prices, and added perks that aren’t available to regular consumers.

Whether you're comparing Circles.Life, Singtel, StarHub, or M1, this guide will help you understand what a CIS plan includes, what to look out for, and how to choose the best option for your business or professional needs.

What is a CIS plan?

A CIS Plan, or Corporate Individual Scheme, is a mobile plan offered exclusively to employees of companies that have an agreement with a telecom provider. These plans come with special pricing, larger data bundles, and added features that aren’t typically available in regular consumer plans.

Employers often recommend CIS plans to help staff stay connected while saving on mobile expenses. In return, employees get access to high-value plans that are designed with professionals in mind.

Types of CIS Plans

• SIM-Only CIS Plans

This option is for users who already have a phone. It usually comes with flexible terms, no contract, and a generous amount of data, talk time, and roaming options.

• CIS SIM + Phone Plans

This option includes both a mobile plan and a new device. It usually involves a 12 to 24-month commitment but offers discounted phone prices and full-service bundles that are ideal for long-term use.

What Might a CIS Plan Include?

CIS plans vary slightly across different providers, but most of them share a common set of features designed to meet the needs of working professionals. Here’s what you’ll typically find in a corporate SIM-only or SIM+Phone CIS plan:

• Talktime and SMS

  Most plans include unlimited local calls and a fixed number of SMS messages, making communication straightforward.

• Data Allowance

  CIS plans often come with large data bundles, sometimes exceeding 100GB, especially from providers like Circles.Life. Some plans also include bonus data for overseas usage.

• International Minutes

  Many CIS plans offer free or discounted international calls, which is helpful for teams with overseas contacts or frequent travelers.

• Roaming Add-Ons

  Some providers include a set amount of roaming data or allow you to add roaming features at a discounted rate.

• Billing Terms

  Expect monthly billing cycles, with simple payment options via credit card or direct bank deduction.

• Excess Usage Charges

  If you go over your included data, call, or SMS limits, there may be additional charges. However, some providers let you top up or auto-upgrade to avoid bill shocks.

Key Considerations When Choosing a CIS SIM-Only Plan

Not all CIS plans are created equal. Choosing the right one depends on how your team uses their mobile service, the flexibility you need, and what kind of features your company values most. Here are the key points to think about before deciding:

• Data Requirements

Estimate how much data your team needs each month. If employees regularly use video calls, cloud apps, or remote access tools, look for plans with high or unlimited data.

• Call and SMS Needs

Most CIS plans offer unlimited local talktime, but if your team makes frequent international calls, consider a plan that includes free or discounted overseas minutes.

• Network Coverage and Quality

Check if the provider offers strong network coverage in your office locations and common travel zones. A reliable signal is essential for seamless communication.

• 5G Access

If your team uses data-intensive applications or newer devices, 5G support can offer faster speeds and better performance.

• Roaming Services

For frequent business travelers, look for plans that include roaming data or allow easy add-ons for overseas use.

• Contract Flexibility

Some companies prefer no-contract plans for easier staff turnover management, while others may be fine with longer commitments in exchange for lower prices or phone bundles.

• Additional Perks

Look into bonus features like free caller ID, birthday data boosts, loyalty rewards, or the ability to customize the plan with add-ons.

Steps to Choose the Right CIS Plan

Choosing the best corporate SIM-only plan doesn’t have to be complicated. Follow these steps to narrow down your options and find a plan that suits your company’s needs.

1. Assess Your Usage Requirements

Start by looking at your team’s typical mobile usage:

• Data Needs: Do employees use cloud apps, hotspot sharing, or video conferencing? If yes, prioritize high-data or unlimited plans.

• Call & SMS: Consider how often your team makes local or international calls, especially for sales or regional communication.

2. Check Eligibility for CIS Plans

Not all companies are eligible for CIS programs. You’ll usually need to:

• Verify employment status using a company email or staff ID.

• Provide documentation that proves your business is part of a registered partner company with the telco.

3. Compare Plans from Different Providers

Each telco offers something different. Do a side-by-side comparison of:

• Circles.Life: Known for no contracts, flexible add-ons, and large data bundles.

• Singtel: Offers both SIM-only and phone bundles, with strong nationwide coverage.

• StarHub: Provides solid network reliability with decent perks for long-term plans.

• M1: Competitive pricing and corporate support with some roaming options.

4. Consider Contract Terms and Flexibility

Ask yourself:

• How long do you plan to keep the line active?

• Do you prefer a contract-free plan or are you okay with a 12 to 24-month commitment if it includes a phone?

5. Evaluate Additional Benefits and Perks

Beyond data and calls, compare what else each plan offers:

• Roaming options

• Free caller ID

• eSIM availability

• Custom add-ons for productivity tools or travel insurance

6. Verify Network Coverage and Performance

Check coverage maps and read speed test reviews in areas where your team works. A plan is only useful if the signal is strong when it’s needed most.

7. Review Billing and Payment Options

Make sure the provider supports your preferred billing style, such as:

• Corporate invoicing

• Automated payments

• Online billing access for multiple lines

8. Seek Feedback and Reviews

Ask peers in other companies or look at online reviews to understand real-world user experiences. This can give you insight into customer service quality, network reliability, and ease of use.

Circles.Life CIS Plans

Circles.Life is known for its contract-free flexibility, large data bundles, and user-friendly mobile experience. Their CIS plans are designed to give corporate users premium data and connectivity without the typical restrictions of long-term contracts.

Here’s a quick look at the available SIM-only CIS plans from Circles.Life:

These plans are ideal for teams that rely heavily on mobile data, require roaming options, and want easy sign-up with no paperwork hassles.

Circles.Life SIM + Phone Plans

If you’re looking for bundled options, Circles.Life also offers device financing with selected phones. These come with fixed monthly payments, allowing you to pair your plan with a new device without a contract lock-in.

Why Choose Circles.Life CIS Plans?

When it comes to balancing flexibility, value, and performance, Circles.Life CIS plans are built to meet the needs of modern professionals and growing teams. Here’s what makes them a strong choice:

• Competitive Pricing

Circles.Life offers some of the most affordable high-data plans in Singapore, with options starting from just S$15 per month. Whether you need 350GB or 600GB, the cost per GB is among the lowest available.

• No Contract Required

Unlike many corporate plans, Circles.Life CIS plans are 100% contract-free. This is ideal for companies with changing headcounts or employees on short-term projects.

• 5G Connectivity

All CIS plans come with 5G access, giving your team faster speeds and better performance across supported devices and locations.

• Flexible Add-Ons

Users can customize their plans with roaming packages, extra SMS, or travel insurance add-ons, making it easy to adapt based on personal or business needs.

• Fast and Easy Sign-Up

With a fully digital onboarding process, new users can activate a line in minutes, including via eSIM, without waiting for paperwork or manual approvals.

• Employee-Friendly Perks

Circles.Life CIS users enjoy free caller ID, birthday data bonuses, and regular promotions, making the overall experience more rewarding.

Make the Smart Choice for Your Corporate Mobile Plan

Choosing the right corporate SIM-only plan in Singapore comes down to understanding your team's needs and finding a provider that offers flexibility, value, and solid network performance. Whether you're managing a growing business or looking for better mobile options for remote teams, a CIS plan can deliver serious savings and smarter features.

At Circles.Life, we offer a modern, no-contract solution with massive data, fast onboarding. With customizable add-ons, instant activation, and plans starting as low as S$15 per month, Circles.Life makes it easy to empower your team with mobile plans that are fast, flexible, and built for today’s working style.

Ready to upgrade your team’s mobile experience? Explore Circles.Life CIS Plans.

Frequently Asked Questions

What is CIS in telco?

CIS stands for Corporate Individual Scheme. It’s a special mobile plan offered by telecom providers to employees of companies that are part of a corporate partnership program. These plans typically include discounted rates, higher data limits, and extra perks not found in regular consumer plans.

What is a CIS discount?

A CIS discount is a price reduction given to eligible users who sign up through their employer’s corporate tie-up with a telco. It can apply to monthly fees, roaming add-ons, or bundled services.

Am I eligible for CIS? How do I know if my company is enrolled?

You are eligible if your company is part of a registered CIS program with the telco. You can usually check with your HR department or directly with the telco’s CIS sign-up page.

How do I apply for a line under Circles.Life CIS?

Visit the Circles.Life CIS page, enter your company email address or referral code, and complete a quick verification process. Once confirmed, you can select your preferred plan and activate it online.

What documents do I need to sign up for CIS?

Most telcos require a valid company email address, staff ID, or employment verification letter. Circles.Life typically requires only a digital verification with your corporate email.

Can I convert my existing Circles.Life personal line to CIS?

Yes. Circles.Life allows users to convert a personal plan to a CIS plan without changing their number. Just go through the CIS sign-up process and select the conversion option.

How do I get the Circles.Life CIS promo?

You can unlock the promo by entering a valid CIS code during sign-up or by verifying your company email address. The discount is applied automatically once your eligibility is confirmed.