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Committed to responsible 
healthcare communication

Reporting period: January 1 – December 31, 2025. Non-financial disclosures aligned with GHG Protocol and leading sustainability frameworks.

2,200+

HOSPITALS SERVED

70M+

MESSAGES PER MONTH

99.92%

NETWORK RELIABILITY

100%

100% ETHICS TRAINING COMPLETION

95%+

CUSTOMER SATISFACTION

OUR MISSION

About Spok

Spok Holdings, Inc., headquartered in Plano, TX, is a global leader in healthcare communications — delivering clinical information to care teams when and where it matters most to improve patient outcomes.

Governance
Governance

Six-director Board with three independent standing
committees overseeing
strategy and compliance.

Environment
Environment

GHG Protocol-aligned
emissions tracking, fleet electrification, and waste minimization programs.

People
People

Competitive total rewards, unlimited flex time off,
and 1,200+ training hours
delivered in 2025.

Security
Security

SOC 2 Type II certified.
Zero data breaches in 2025.
NIST framework aligned.

Community
Community

Thousands of volunteer
hours annually, supporting organizations that save lives.

GOVERNANCE

Ethics, Oversight & Accountability

Our Board of Directors, with three independent standing committees, sets strategic direction and fosters long-term stockholder value. The Nominating and Governance Committee provides direct quarterly oversight of all sustainability matters.

BOARD STRUCTURE

Six directors in 2025, supported by three fully independent standing committees. Our Chairman and CEO share governance responsibilities to ensure forthright communication and independent management oversight.

The Nominating and Governance Committee (3 independent directors) oversees our management-level Sustainability Committee — a cross-functional team focused on governance, human rights, environment, climate, and digital transformation.

POLICIES IN FORCE

• Code of Business Conduct and Ethics – 100% trained
• Anti-Bribery and Anti-Corruption Policy – 100% trained
• Enterprise Human Rights Policy
• Enterprise Labor Rights Policy
• Vendor Code of Conduct
• Anti-Harassment and Non-Discrimination Policy
• Corporate Governance Guidelines
• Insider Trading Policy
• Clawback Policy
• Hedging and Pledging Policy
• Corporate and Social Responsibility Policy

0

Ethics or compliance complaints
received in 2025

Spok’s Code of Conduct is the cornerstone of our corporation, providing employees with clear standards, helpful examples, and guidance on ethical decision-making. A 24/7 compliance hotline is available to all employees, vendors, and external stakeholders. Reports are kept anonymous where permitted by law, and retaliation is strictly prohibited. 100% of employees completed mandatory training in 2025.

Spok prohibits all corrupt practices, unethical payments, bribes, and kickbacks across all business matters. Our policy and Vendor Code of Conduct require adherence to the Foreign Corrupt Practices Act, the UK Bribery Act, and applicable antitrust laws. 100% of employees completed training in 2025. No political activities or lobbying were conducted during 2025.

Spok recognizes the legal and compliance risks associated with Conflict Minerals. We disseminate our Conflict Minerals Policy to suppliers and use commercially reasonable efforts to obtain supplier commitments to comply. Our full policy is available on our website.

Our Vendor Code of Conduct outlines ethical expectations for all suppliers, partners, contractors, and third parties. We conduct annual compliance audits on a subset of suppliers. Vendors are expected to uphold human rights, maintain anti-corruption policies, and act with integrity in accordance with applicable laws.

PEOPLE

Our Workforce & Culture

Our workforce is our most critical asset. We invest in growth, maintain an inclusive culture, and offer competitive benefits to attract and retain exceptional talent.

Governance
Compensation & Benefits

Competitive base pay, incentives, and a robust 401(k) plan. Comprehensive medical, dental, vision, life insurance, and disability coverage for all employees.
7 paid company holidays plus unlimited flex time off. Mental health and wellness programs available 24/7, 365 days a year at no cost.

Governance
Learning & Development

Over 1,200 hours of training delivered
in 2025 across formal and
informal programs.

Leadership development tailored to career stage and role. Tuition assistance up to $5,000 per year for eligible
higher education studies.

Governance
Human Rights

Our Enterprise Human Rights and
Labor Rights Policies align with
the UN Universal Declaration
of Human Rights.

Spok prides ourselves in covering privacy,
non-discrimination, freedom
of expression, workplace rights,
and supply chain rights.

Governance
Non-Discrimination

Zero-tolerance policy for harassment
and discrimination.

Complaints can be reported to supervisors, HR, or the 24/7 Ethics
Hotline (multilingual). All complaints
are investigated confidentially with appropriate corrective action, up to
and including termination.

ENVIRONMENT

Energy, Emissions & Climate

Spok calculates and reports GHG emissions in alignment with the World Resources Institute’s GHG Protocol. Emissions span Scopes 1, 2, and 3 across our global operations.

GHG Emissions — CO₂e (metric tons)

FY 2023 – FY 2025

Scope

2023

2024

2025

YoY Change

Scope 1 — Direct (fleet combustion)

374.2

372.0

345.0

▼ 7.3%

Scope 2 — Location-based (purchased electricity)

n/a

5,103.5

4,220.0

▼ 17.3%

Scope 2 — Market-based

n/a

n/a

4,240.0

—

Scope 3 — Business travel & commuting

159.1

159.0

184.0

▲ 15.7%

Emission factors from US EPA Center for Corporate Climate Leadership; global warming potentials from IPCC AR5. 14,024 MWh estimated purchased electricity in 2025. Scope 2 market-based reporting initiated in 2025.

Contract Lifecycle Management Savings in 2025

By eliminating paper-based contracts, Spok’s CLM system produced the following annual environmental savings:

Governance
9,145 lbs.

Wood saved

Governance
21,640 gal.

Water saved

Governance
17,450 lbs.

Carbon avoided

Governance
1,215 lbs.

Waste diverted

Spok acknowledges the scientific consensus on climate change and the material risk it poses to our supply chain, operations, and customers. Our Environmental Management System (EMS) outlines management, risk mitigation, and compliance requirements across all global locations. We are committed to reducing our GHG footprint and engaging constructively with industry peers, value chain partners, and policymakers to accelerate the transition to a low-carbon economy. Our goal is to decrease our carbon footprint by 5% in 2026.

Spok’s waste minimization program diverts thousands of pounds of electronic and communications equipment from landfills annually. We collect and reuse over 65% of communications equipment each year, recycling the remainder. Materials recycled include telecommunications equipment, batteries, wood poles, electronics, copper wire, fluorescent lamps, and fleet oil. We use R2- or e-Stewards-certified vendors for responsible disposal.

Spok is transitioning its fleet to flex-fuel vehicles while reducing overall vehicle count. In 2025, flex-fuel vehicles outpaced standard vehicles in our fleet mix. We continue to optimize dispatching to minimize miles driven. Fuel consumption decreased in 2025 as flex-fuel adoption increased. Full EV electrification remains a challenge given the lack of suitable commercial-scale EV options for our operational requirements.

As a technology and communications company, direct water usage is minimal. Spok continues to decrease water consumption year-over-year, in parallel with reducing our overall carbon footprint. We are exploring additional monitoring capabilities to better understand and identify opportunities for further water use reduction.

DATA PRIVACY & CYBERSECURITY

2025 Threat Detection & Incident Response

There is no higher priority at Spok than protecting our systems, networks, and customer data. Our program is aligned with the NIST Cybersecurity Framework and independently validated via SOC 2 Type II audit.

273B

TOTAL EVENTS MONITORED

2.26M

SECURITY DETECTIONS

100K

CORRELATED EVENTS

67

TOTAL ESCALATIONS

Metric

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Events (Billions)

65

79

76

54

Internal Escalations

20

15

16

16

Reportable Incidents

0

0

0

0

 SOC 2 Type II Certified — 2025 · Audited against all five trust service principles

In 2025, Spok did not experience any identified data losses or breaches. All employees, interns, and temporary staff receive information security and privacy training multiple times per year, with monthly awareness reminders. External penetration testing and multi-layer vulnerability scanning are conducted annually.

COMMUNITY & CUSTOMERS

Impact Beyond the Business

Spok’s solutions improve communications in critical situations, supporting organizations that save lives. We believe strongly in being a good corporate citizen and fostering a culture of giving back.

CUSTOMER SATISFACTION

95%+

Spok’s solutions improve communications in critical situations, supporting organizations that save lives. We believe strongly in being a good corporate citizen and fostering a culture of giving back.

NETWORK RELIABILITY

99.92%

Network uptime in 2025. Spok operates the nation’s largest paging coverage footprint, with redundancy throughout network operations designed to maintain service during floods, hurricanes, pandemics, and other crises. Thousands of volunteer hours contributed by team members in 2025, strengthening communities across the country.

This report contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those described. Non-financial disclosures are informed by leading sustainability frameworks; methodology continues to evolve. Data quality is subject to internal verification procedures. Website references are provided for convenience and are not incorporated by reference into this report.