How to Become a CIO, Based on 246 CIOs

Boards today are choosing Chief Information Officers who keep the enterprise ahead of artificial intelligence, agentic systems, and the early risks of quantum computing. Before 2023, the same title carried a narrower mandate, and the answer to how to become a CIO looked different than it does now. 

We analyzed every sitting CIO in the S&P 500 (n=246) and more than 5,000 data points across 21 dimensions to map the credential bar for the CIO seat as it stands today. No single path leads to the chair, and the findings reflect trends across a varied population rather than a formula to follow. CIOs who hold the seat today most often pair technical depth with business range, and that combination shows up consistently across the data. In what follows, we trace that pattern by degree, by industry, and by the balance of skills most common among today’s sitting CIOs. 

How the CIO credential mix breaks down

The CIO credential mix splits primarily between computer science and MBA degrees, with computer science now the more common path. S&P 500 CIOs are more likely to hold a computer science degree than an MBA, and that gap has grown since 2023. Computer science degree holders outnumbered MBA holders by about 10 points before 2023, 48.2% to 38.0%. Since then, the gap has widened to more than 20 points, with computer science credentialing climbing to 50.5% and MBA credentialing settling at 29.4%.

Across the full population, computer science degrees outnumber MBAs by about 15 points, 49.3% to 33.9%, and more than half of all sitting CIOs hold a master’s degree or higher.

The full credential picture includes more than the computer science and MBA comparison. Bachelor’s degrees remain the single largest credential category, held by 44.4% of CIOs. A JD marks the highest credential for 0.8% of CIOs, a doctorate for 1.6%, and a non-MBA master’s degree for 21.4%. Combined with MBA credentialing, those figures put a majority of CIOs at a master’s degree or higher, even as bachelor’s degrees remain the largest single category on their own. 

A third of CIOs, 33.2%, spent part of their career at a technology vendor or services provider before reaching the chair, a share that has climbed to 34.5% among recent appointments. Among CIOs with vendor experience, 44.4% reached the C-suite at that vendor before stepping into the CIO seat, a path that blends technical grounding with commercial experience.

How the CIO credential mix shifts by industry

The credential mix shifts meaningfully by industry, with some industries rewarding heavy technical and business credentialing together and others leaning more toward one or the other. Agriculture, Energy, and Natural Resources CIOs carry the highest combined credentialing of any industry, with 66.7% holding a computer science degree and 58.3% holding an MBA. That pattern fits a technical, regulated field, though the small sample size in this industry calls for some caution. 

Healthcare and Life Sciences follows a similar technical lean, with the second-highest share of computer science degrees at 54.5%. Consumer sits at the opposite end of that range, with the second-highest share of MBAs at 47.4%. Financial Services CIOs lean more technical than commercial, at 51.9% computer science and 29.6% MBA, and Industrials CIOs carry the most modest combined credentialing of any industry, at 40.0% computer science and 36.0% MBA.

No industry requires a single degree to reach the CIO chair. Agriculture, Energy, and Natural Resources CIOs combine the heaviest technical and business credentialing of any industry, and Industrials CIOs reach the seat with the lightest combined credentialing of any industry. The right mix shifts with the industry a candidate serves.

How to become a CIO today’s boards want

Today’s boards want a T-shaped leader for the CIO seat, someone who pairs deep technical fluency with the range to put it to work across the organization. Madhuri Andrews, EVP and CIO at MKS Inc. and a board director at Applied Industrial Technologies, has sat on both sides of that evaluation, as a sitting CIO and as a director helping select one.

“The frame I keep coming back to is the T-shaped leader. The vertical is your technical discipline, and yes, the CIO needs real depth there. But for a CIO, the horizontal, the ability to work across the organization and connect technology to enterprise value, is the larger and more demanding part of the role. If you only have the vertical, you are going to struggle to be effective at the level this role demands. You have to be bilingual. Technical and business. And if you do not have both, I think it is going to be very hard to have the impact the role calls for.” – Madhuri Andrews, EVP and CIO at MKS Inc.

Candidates who build both halves separate themselves from those who lean on just one.

Positioning for the seat starts well before the interview. The backgrounds feeding the CIO chair have widened past traditional IT leadership roles, with cross-functional experience across operations, applications, and product work now represented among candidates for the seat. Timing has shifted too, at least among the CIOs currently in the seat. Median appointment age moved from 48 to 50 since 2023, and the share of CIOs appointed under 40 dropped from 13.3% to 3.8% over the same period, with the 45 to 54 range now accounting for the large majority of appointments, though candidates outside that range continue to reach the seat. Fluency in AI, agentic systems, and quantum computing has become part of the picture as well, with boards increasingly looking for CIOs who can operate as credible advisors on where the technology is headed from the start.

What the data says about becoming a CIO

The credential bar for the CIO seat has moved in a specific direction. Computer science credentialing has held steady across the population, and MBA credentialing now represents a narrower slice of that same population. The industry a candidate serves shapes how that balance plays out. Whether a candidate can operate as a T-shaped leader, with the technical depth to earn credibility and the business range to put it to work across the organization, carries just as much weight as the degree itself. Candidates who build both sides of that T position themselves for the seat, regardless of which specific background or timeline brought them there.

The credentials boards are hiring for are only one part of what’s shifting in the CIO seat. N2Growth’s research on every sitting S&P 500 CIO also tracks how long CIOs hold the role, how often they move across industries, and what boards are already planning for next. Explore the complete findings in N2Growth’s white paper on the Chief Information Officer.