Portside

Portside

Cloud-based platform for business aviation operations

About Portside

Simplify's Rating
Why Portside is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

Aerospace

Company Size

201-500

Company Stage

Series B

Total Funding

$69M

Headquarters

San Francisco, California

Founded

2017

Overview

Portside provides a cloud-based suite of applications for business aviation operations. The core Portside Platform integrates with most aviation systems to gather real-time data and offers dashboards, reports, and automated workflows via a subscription-based cloud service that can be tailored to a flight department’s size. It differentiates itself by offering broad system integration plus modules for expenses, safety management, and flight management, and it has expanded its capabilities through acquisitions of Baldwin Safety & Compliance and Avianis. The goal is to give flight departments a single, data-driven platform to oversee operations, cut costs, and improve efficiency and safety.

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Simplify's Take

What believers are saying

  • Vista Equity deepens 2024 investment on March 5, 2026, accelerating AI roadmap.
  • Brandon Holden, ex-Eptura CEO, appointed CEO to drive global expansion.
  • 10-year Solairus Aviation contract via Avianis secures long-term revenue.

What critics are saying

  • Jet Aviation's marketplace competes directly, bypassing Horizon for staffing.
  • Aviasoft undercuts subscriptions at 40% lower price in Asia-Pacific.
  • LeaseWorks-Avianis integration fails, causing data silos and client churn.

What makes Portside unique

  • Portside integrates Avianis and Baldwin Safety for comprehensive flight and safety management.
  • Horizon offers modular cloud platform with advanced reporting and API integrations.
  • Serves 1,300 customers in business aviation, airlines, and leasing across 40 countries.

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Funding

Total Funding

$69M

Above

Industry Average

Funded Over

2 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Above Average

Industry standards

$35M
$45M
Linktree
$50M
Portside
$65M
Substack
$100M
ClickUp

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

Fully remote work

Opportunities for professional development

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

-1%

2 year growth

0%
FinancialContent
Mar 5th, 2026
Vista Equity Partners deepens investment in Portside, appoints Brandon Holden as CEO

Portside, a cloud-based aviation software provider, has announced a new investment from Vista Equity Partners and appointed Brandon Holden as chief executive officer. Vista, which made its initial investment in 2024, will accelerate platform integration and AI development. Insight Partners remains a significant shareholder. Holden brings over 20 years of experience leading high-growth businesses, most recently as CEO of Eptura. He succeeds co-founder Alek Vernitsky, who will continue as strategic adviser and board member. Portside serves over 1,300 enterprise customers globally across business aviation, commercial airlines and aircraft leasing. The company employs more than 330 professionals across 40 countries. The investment will support expansion of its Horizon flight management system and go-to-market capabilities. Transaction terms were not disclosed.

EIN News
Feb 24th, 2025
Portside Inc. Launches Horizon: The Ultimate Cloud-Based Solution for Business Aviation Management

Portside Inc. launches Horizon: the ultimate cloud-based solution for business aviation management.

Business Wire
Aug 17th, 2024
LeaseWorks and Portside Join Forces

LeaseWorks®, a leading provider of innovative software and digital solutions for the aviation industry, announced that it had been acquired by Portsid

Business Wire
May 31st, 2024
Portside Announces Strategic Growth Investment Led by Vista Equity Partners

Portside, a premier provider of modern software solutions for the business aviation industry, today announced a strategic growth investment led by Vis

FinSMEs
May 30th, 2024
Portside Receives Strategic Growth Investment Led by Vista Equity Partners

Portside receives strategic growth investment led by Vista Equity Partners.

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