Executive Partner · Est. 2019

Turning vision
into execution.

Chief of StaffSpecial Projects LeadStrategy & Operations LeadExecutive Partner

I'm Rosemary, a strategic Chief of Staff with over seven years partnering with C-suite leaders to align teams, build scalable operations, and drive measurable outcomes across complex organizations.

Rosemary Cookeygam, Chief of Staff
7+
Years supporting C-suite leaders
MBA · ManagementProject Management ProfessionalLean Six SigmaScrum MasterCorporate StrategyAI-Enabled Execution
MBA · ManagementProject Management ProfessionalLean Six SigmaScrum MasterCorporate StrategyAI-Enabled Execution
About

A trusted partner
to the people running things.

I work best as a trusted partner to leaders, not just managing work, but helping make sense of it. I understand the pressure that comes with leadership, and the importance of having someone who brings clarity, calm, and follow-through.

I naturally bring structure to busy, fast-moving environments. I turn big ideas into clear priorities, align teams, and make sure decisions actually turn into action. Hands-on when needed, strategic when required, always mindful of the bigger picture.

I make leadership easier, by creating order, momentum, and space for leaders to do their best work.

I bring clarity

I turn ambiguity, voice memos, and messy ideas into structured execution plans leaders can act on immediately.

I build systems

I don't just complete tasks. I build the infrastructure so the same task never needs manual effort twice.

I'm trusted

Executives rely on me for sensitive communications, high-stakes decisions, and confidential operations.

I use AI

I leverage AI tools daily. Briefings, SOPs, plans, and dashboards built in a fraction of the time.

Services

How I partner with leaders.

Six practice areas, one operating principle: reduce friction so the leader can lead.

01

Strategic Planning & Execution

OKRs, KPIs, roadmaps, and priority architecture. Translating vision into operating plans leaders can act on this quarter.

02

Executive Calendar & Inbox

Time architecture, triage, and follow-through that protects focus and clears the leader's runway daily.

03

SOP & Process Design

Systems, templates, and workflow automation so the same task never needs manual effort twice.

04

Team & Cross-Functional Ops

Coordination, accountability rhythms, CRM and pipeline tracking, reporting cadences that hold.

05

AI-Enabled Execution

Notion, Claude, ChatGPT, Otter. Briefings, SOPs, dashboards built in a fraction of the time.

06

Special Projects & Change

Fundraises, launches, reorgs. High-stakes initiatives owned end-to-end with discretion.

Experience

Seven years
in the room where
decisions are made.

From boardrooms to fast-moving startups, supporting MDs, founders, and C-suite across advertising, healthcare, and venture.

  1. 2023 to Present
    Group Chief of Staff
    Dentsu Nigeria
  2. 2023
    Partnership Manager
    Obsidian Achernar
  3. 2022 to 2023
    Chief of Staff
    Innovius Nigeria
  4. 2020 to 2022
    Senior Executive Assistant to the MD
    Primary Healthcare Board
  5. 2019 to 2020
    EA / Business Development Executive
    Outori, Dentsu Aegis Network
Portfolio Samples

An operating system
for executive focus.

Sample · 01Notion Executive OS

Weekly CEO Dashboard

Priorities, meeting prep, and delivery, the single surface a CEO checks first each morning.

Open Priorities
7
3 critical
In Progress
14
Due Friday
Completed MTD
38
Ahead of target
Investor deck refresh
Mar 22
In Progress
Q1 board report
Mar 25
Review
Hire ops coordinator
Mar 28
On Track
Sample · 02

Investor Pipeline

Series A tracker, 18 identified, closed round.

Identified18
Contacted12
In Diligence6
Term Sheet2
Closed1
SOP · 001

Executive Inbox Management

Daily · Owner: Chief of Staff

  1. 08:00Morning triage, Action / FYI / Delegate / Archive
  2. 08:30Priority flag, draft same-day replies for approval
  3. MiddayDelegate with deadline + context
  4. 17:00Inbox to zero, log open threads
SOP · 002, Weekly Operating Rhythm
MON
Priorities brief to CEO
Update Notion
Team standup
TUE
Client comms review
Investor follow-ups
Draft CEO correspondence
WED
Mid-week check-in
SOP updates
Flag risks
THU
Board pack prep
Stakeholder syncs
Agenda prep
FRI
Weekly wrap
Notion clear-down
Next week priorities
Case Studies

Selected work,
measurable outcomes.

01
Case Study
Dentsu Nigeria

Group-Wide Operating Rhythm

Rebuilt the leadership operating cadence across four agencies. Weekly scorecards, monthly business reviews, and a single Notion HQ replacing scattered decks and threads.

Strategy & OpsNotion OSExecutive Cadence
4 agencies aligned · 30% fewer meetings
Request full case study
02
Case Study
Innovius Nigeria

Series A Fundraise Enablement

Owned the investor pipeline end-to-end. 18 targets identified, data room built, weekly CEO briefings, supporting a successful raise and a clean handover to the new CFO.

Special ProjectsInvestor OpsData Room
Round closed · 6 months
Request full case study
03
Case Study
Primary Healthcare Board

SOP Library & Delegation Framework

Designed 40+ SOPs covering inbox, calendar, vendor and stakeholder workflows. Freed the MD's calendar by roughly 12 hours a week and made onboarding new EAs a two-day task.

SOP DesignDelegationOnboarding
40+ SOPs · 12 hrs/wk saved
Request full case study
04
Case Study
Obsidian Achernar

Partnership Pipeline & CRM Rebuild

Rebuilt HubSpot from scratch, defined a five-stage partnership pipeline with automations, and instituted a weekly pipeline review. Doubled qualified partner conversations in one quarter.

CRMPipelineAI-Enabled Ops
2× qualified conversations
Request full case study
Toolkit
NotionAsanaClickUpTrelloSlackGoogle WorkspaceClaudeChatGPTOtter.aiZapierHubSpotSalesforceZoho CRMAirtableZendeskCalendlyMailchimpFigma
Let's Work Together

Let's scale up
your business.

Currently taking on new Chief of Staff and special-project engagements. Tell me about your team and what you're navigating, I typically reply within one business day.

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