What is an org chart?

An organizational chart, or org chart, is a diagram showing the structure of an organization: roles, reporting lines, and how teams and departments group together. Its core function is to depict formal authority and reporting relationships, not to serve as a searchable record of individual people.

Org chart vs employee directory vs RACI chart

An employee directory is a searchable database of individual records, name, title, contact information, location, organized for lookup. An org chart is a structural diagram whose unit of analysis is the position and its reporting line, not the individual as a standalone record. A directory answers who someone is and how to reach them; an org chart answers who they report to and who reports to them.

Many platforms combine both, a directory with an org-chart view layered on top, but a directory can exist with no hierarchy information at all, while an org chart is meaningless without reporting-line data.

A RACI chart, Responsible, Accountable, Consulted, Informed, shows task-level accountability for specific projects or decisions, which frequently crosses reporting lines entirely, such as in a matrixed project team. An org chart and a RACI chart are complementary but answer different questions: structure versus workflow accountability.

The theory behind how org charts get their shape

Span of control, the number of people who report directly to one manager, has a real theoretical basis worth naming. V.A. Graicunas’s 1933 paper “Relationship in Organization,” later popularized by management theorist Lyndall Urwick, argued that a manager’s effective span should stay limited because the number of possible interpersonal relationships a manager must track grows combinatorially, not linearly, as direct reports are added. Historical rules of thumb ranged from roughly three to nine direct reports, though modern practice varies this widely: standardized, low-complexity work supports much wider spans, while roles requiring close coaching support narrower ones.

This connects directly to the classic distinction between flat and tall organizational structures. A tall structure has many management layers and narrow spans at each level, producing longer chains of command. A flat structure has fewer layers and wider spans, pushing decisions closer to frontline employees. Henri Fayol’s early-20th-century writings on administrative management also gave us the principle of unity of command, that each employee should report to only one manager to avoid conflicting instructions, which is why a dotted line on a chart is the conventional notation for an exception, a matrix reporting relationship, rather than the norm.

Why org design keeps coming up as a leadership concern

Organizational complexity is a live frustration among leaders, not a solved problem. McKinsey’s State of Organizations 2026 found that two-thirds of leaders think their organizations are overly complex and inefficient, and noted that traditional remedies, structural redesigns, cost cuts, and flatter hierarchies, are producing diminishing returns.

Management capacity itself is under strain too. Gallup’s State of the Global Workplace 2026 found manager engagement fell to 22% in 2025, down from 31% in 2022, while organizations Gallup classifies as best-practice achieved 79% manager engagement against that 22% global average, a gap closely tied to how well managers are supported and how much they are asked to carry within the reporting structure.

Common org chart structures

• Functional. Grouped by discipline, all of marketing under one leader, all of engineering under another.
• Divisional. Grouped by product line, geography, or customer segment, each division running its own functions underneath it.
• Matrix. Employees report to two managers at once, typically a functional manager and a project or product manager.
• Flat. Few management layers and wide spans of control, common in smaller or intentionally decentralized organizations.

Org chart structures compared

When an org chart stops reflecting reality

Org charts drift out of date faster than most people expect, especially after a reorg, a round of hiring, or a wave of departures. A chart that still shows someone in a role they left months ago is worse than no chart at all, since it actively misleads a new hire trying to figure out who actually owns a decision. Organizations that keep their chart useful usually tie it directly to the HRIS as the system of record, so it updates automatically rather than depending on someone remembering to redraw a diagram every time a reporting line changes.

Org chart FAQs