A Head of Human Resources owns the people function end to end: hiring, comp, culture, compliance, and the systems that keep all of it running. But the job at a 60-person startup and the job at a 6,000-person enterprise share almost nothing except the title. One is a generalist doing five jobs with no playbook. The other is an orchestrator managing directors who each run one slice of HR.
If you're evaluating an offer, mapping your next move, or just trying to figure out why two "Head of HR" job posts read like they're for different planets, this is the breakdown. Same seat, different flight.
What does a Head of Human Resources actually do day to day?
The core mandate never changes: build the systems that let a company hire, pay, develop, and retain people without breaking the law or bleeding good talent out the back door. Every Head of HR touches recruiting strategy, compensation philosophy, performance management, employee relations, and compliance. That's the constant.
What changes is who does the actual work. At a startup, the Head of HR is often the one drafting the offer letter, running payroll in a spreadsheet, and sitting in on a termination conversation the same afternoon they finalize the benefits renewal. At an enterprise, the Head of HR sets policy and budget, then reviews dashboards built by a VP of Talent Acquisition, a VP of Total Rewards, and an HRBP team that reports three layers down.
Plain-language summary: the title stays the same, but startup HR heads are builders and enterprise HR heads are architects reviewing other people's blueprints.
Head of HR at a startup: what the scope really looks like
In a company under a few hundred employees, there's usually no HR department when the Head of HR is hired. Just a CEO who's been doing offer letters in Google Docs and realizing that doesn't scale. This person is employee number one in the function, which means:
- They build the stack from zero. Picking the HRIS, payroll provider, benefits broker, ATS, and performance review tool, usually in the first two quarters.
- They personally run recruiting for leadership hires. Sourcing VPs, screening candidates, negotiating offers, often before there's a recruiting team to hand it off to.
- They write policy as problems appear. Remote work policy gets written the week someone asks to move states. PTO policy gets rewritten after the first dispute.
- They're in the room for equity conversations. Startups pay partly in options, so the Head of HR has to understand vesting schedules, dilution, and how to explain both to a nervous new hire.
- They wear compliance risk personally. One person deciding whether a contractor is misclassified, whether a termination is defensible, whether a state's leave law applies. No general counsel to lean on yet, maybe outsourced legal on retainer.
The upside: enormous influence. A startup Head of HR can shape culture, comp bands, and leadership hiring decisions directly, often reporting straight to the CEO and sitting in board meetings. The downside: no infrastructure, no team for a while, and the buck stops with you on every people problem the company has never dealt with before.
Head of HR at an enterprise: what the scope really looks like
At a large, mature organization, the Head of HR (sometimes called Chief Human Resources Officer, sometimes VP of HR reporting into a CHRO) inherits a function that already has dozens or hundreds of people in it. The job shifts from building to governing:
- They manage a leadership team, not a task list. Directors and VPs of Talent Acquisition, Compensation, Learning & Development, Employee Relations, and HR Operations all report up through them.
- They own budget and headcount planning at scale. Forecasting attrition, planning reorgs, defending HR's budget line to finance across multiple business units.
- They negotiate with structure already in place. Union relationships, works councils in international offices, formalized grievance procedures. Policy exists; the job is refining it and managing exceptions.
- They answer to a board and to regulators. Pay equity audits, EEOC reporting, DE&I disclosures, and increasingly, AI-in-hiring compliance work as automated screening tools draw regulatory attention.
- They operate through systems, not conversations. Decisions get made through committees, calibration sessions, and formal change-management processes rather than a Slack DM to the CEO.
The upside: real infrastructure, specialist teams to lean on, and a support system when something goes wrong. The downside: slower to change anything, more politics, and less direct fingerprints on any single hire or policy.
Head of HR vs VP of HR: is there a real difference?
This is the question that confuses candidates most, because titles aren't standardized across companies. Here's the pattern that actually holds in most orgs:
| Dimension | Head of HR | VP of HR |
|---|---|---|
| Most common company size | Startup to mid-market (often the top HR role, period) | Enterprise, usually one of several VPs under a CHRO |
| Reports to | CEO or COO directly | CHRO or Chief People Officer |
| Scope | All of HR, generalist, hands-on | One or two pillars (e.g., Talent Acquisition, Total Rewards) at scale |
| Team size | Small or building from zero | Often manages directors who manage managers |
| Decision-making style | Fast, direct, owns the outcome personally | Structured, cross-functional sign-off required |
| Typical next step up | VP of HR or CHRO at a larger company | CHRO or Chief People Officer |
The short version: "Head of HR" at a startup is often functionally a CHRO in miniature. "VP of HR" at an enterprise is a senior leader, but one layer below the person who owns the whole function. Read the org chart in the job description, not the title, before you assume seniority.
What's the realistic career path into a Head of HR role?
There isn't one linear route, but the common paths follow a pattern: broaden before you go up.
- Start in a specialist HR track. Recruiting, compensation, HRBP, or L&D. Depth in one area builds credibility fast.
- Move into an HR Business Partner role. This is where most future HR leaders learn to operate as a business advisor, not just a policy enforcer.
- Take a generalist manager or Director of HR role. This is the proving ground for running multiple HR functions at once with a small team.
- Get exposure to comp philosophy and workforce planning. Boards and CEOs expect Head of HR candidates to speak fluently about pay strategy and headcount forecasting, not just employee relations.
- Take the leap into a startup Head of HR seat if you want breadth fast. It's the fastest way to earn "built HR from zero" on a resume, which enterprises value highly when hiring their next VP or CHRO.
- Or move up internally at an enterprise into VP of HR, then CHRO. Slower, but comes with bigger scope and better name-brand credibility.
- Build a board-ready track record before targeting CHRO. That means demonstrable experience presenting to a board, managing through a reorg or layoff, and owning DE&I or pay equity reporting.
Plain-language summary: the fastest way up is depth first, breadth second, board exposure last. Skipping steps shows up in interviews.
What should you expect in comp for a Head of HR role?
Compensation for Head of HR swings hard on company stage, industry, and whether the role includes equity. A few patterns hold across most markets:
- Startup Head of HR comp usually leans on base salary plus a meaningful equity grant, since the company is compensating for risk and for the fact that this person is building the function alone.
- Enterprise VP of HR or CHRO-track Head of HR comp leans harder on base and annual bonus, with equity or long-term incentives layered in at more senior levels, especially in public companies.
- Industry matters more than title. Regulated industries (healthcare, finance, government contracting) and companies with union workforces tend to pay a premium for HR leaders who've navigated labor relations and compliance at scale before.
- Geography still moves the number. Roles based in major metro tech hubs command different bands than the same scope of work in a smaller regional market.
Don't anchor to a single number you saw on a job board. Ask directly in the process what the comp mix is (base, bonus, equity) and how it's benchmarked, since "Head of HR" spans an enormous range of actual scope.
How do you land a Head of HR role, and how does GiraffyReach fit in?
Landing this seat is less about a perfect resume and more about being visible the moment a company decides they need this hire. Startups often move fast once a founder finally admits they need dedicated HR leadership, and enterprises post CHRO-track roles quietly through networks before they ever hit a job board. That means the candidates who apply within the first wave, and the ones whose name comes up through a warm recruiter conversation, get seen before the role is buried under hundreds of applicants. GiraffyReach was built for exactly that timing problem: it flags new HR executive postings the moment they go live, applies before the queue fills up, and runs recruiter outreach so you're not relying on a job board algorithm to surface you. If you're targeting a Head of HR or VP HR move, being early matters as much as being qualified.
For related career-ladder breakdowns, see HR Apprentice vs HR Intern: What's the Real Difference in Career Entry Path? if you're mapping the entry side of HR, or How to Get Recruiter Replies for Head of Machine Learning Roles: A Cold Outreach Template for a cold-outreach template you can adapt for HR executive searches. And if you want to see how AI job agents actually handle applications at the executive level, What Is an MCP Job Agent's Strategy for Handling Custom Screening Questions? is a good next read.