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Five9, Inc. vs Plug Power Inc.

Market cap comparison over time

Five9, Inc.

$2.4B

Rank #361

Plug Power Inc.

$3.1B

Rank #359

Market Cap Over Time

Key Moments

  • Five9, Inc. overtook Plug Power Inc. by 2018
  • Plug Power Inc. overtook Five9, Inc. by 2019
  • Five9, Inc. overtook Plug Power Inc. by 2024
  • Plug Power Inc. overtook Five9, Inc. by 2025

Year-by-Year Comparison

YearFive9, Inc.Plug Power Inc.Leader
2026$2.4B$3.1BPlug Power Inc.
2025$1.5B$2.7BPlug Power Inc.
2024$3.1B$3.0BFive9, Inc.
2023$1.6B$6.3BPlug Power Inc.
2022$1.6B$3.9BPlug Power Inc.
2021$1.6B$3.9BPlug Power Inc.
2020$1.6B$3.9BPlug Power Inc.
2019$1.6B$4.4BPlug Power Inc.
2018$3.3B$1.7BFive9, Inc.
2017$1.9B$3.3BPlug Power Inc.
2016$1.1B$1.7BPlug Power Inc.
2015$666.1M$2.9BPlug Power Inc.
2014$343.0M$4.2BPlug Power Inc.