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Diversis Capital buys Tideworks port software from Blackstone-backed Carrix

Diversis Capital buys Tideworks port software from Blackstone-backed Carrix

Money Moves

Seattle terminal-operating-system maker becomes a standalone business under a new majority owner

Yesterday: Diversis acquires majority of Tideworks from Carrix

Overview

Updated 1 hour ago

Tideworks, the Seattle company whose software coordinates container moves across more than 130 marine and intermodal rail terminals, has new owners. Los Angeles private equity firm Diversis Capital took majority control from Carrix, the terminal operator that created Tideworks in 1999 and is majority-owned by Blackstone.

The sale makes Tideworks a standalone software business. Diversis says it will fund new products and global expansion, reshaping who builds and profits from the terminal operating systems that major ports rely on.

Why it matters

Terminal operating systems are mission-critical software for ports; selling Tideworks to a growth-focused private equity firm decides who invests in—and profits from—global logistics technology.

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Key Indicators

130+
Facilities worldwide running Tideworks terminal operating systems
Marine and intermodal rail terminals across North America, Europe, and Latin America.
300,000+
Logistics professionals using Tideworks tools daily
Users rely on the Mainsail 10 TOS and Intermodal PRO platforms.
25
Years Tideworks operated as Carrix's in-house division
Founded in 1999, Tideworks ran under Carrix until the October 2026 sale.
22
Acquisitions by Diversis since its 2013 founding
The firm's portfolio spans healthcare IT, marketing tech, and field force automation.

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People Involved

Organizations Involved

Timeline

January 1999 October 2026

3 events Latest: Yesterday
  1. Diversis acquires majority of Tideworks from Carrix

    Latest Acquisition

    Diversis Capital takes majority control of Tideworks Technology from Carrix; terms undisclosed.

  2. Diversis acquires LTi Technology Solutions

    Acquisition

    Diversis buys equipment finance software maker LTi, its latest deal before Tideworks.

  3. Tideworks founded as Carrix technology division

    Founding

    Carrix establishes Tideworks Technology in Seattle to build terminal operating software.

Scenarios

1

Tideworks ships next-gen Mainsail, enters new market

Likely Resolves by End of 2027

Discussed by: Deal announcement; Diversis managing partner Kevin Ma pledged product innovation and global expansion

Diversis said it will invest in product innovation and go-to-market expansion. That likely means a major update to the flagship Mainsail terminal operating system or entry into a new region such as Asia or the Middle East, where Tideworks has not disclosed operations.

2

Diversis bolts on another logistics software firm

Possible Resolves by Oct 1, 2028

Discussed by: Diversis's track record — more than 20 acquisitions since 2013, including LTi in March 2026

Diversis has built its portfolio through add-on acquisitions in vertical software. A natural next step is buying a complementary port, intermodal, or logistics software company to fold into Tideworks and extend its product line.

3

Tideworks keeps leadership and customers, integration runs quietly

Likely Resolves by Oct 1, 2028

Discussed by: Both companies' statements emphasizing leadership continuity and customer stability

The least dramatic outcome may be the most likely: Subbu Bhat stays president, customers renew contracts, and Diversis invests gradually without disruption. That confirms the carve-out worked without upsetting terminal operators who depend on the software daily.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

2019

Navis sold to Accel-KKR (2019)

Navis, the rival terminal operating system vendor founded in Oakland in 1988, was acquired by U.S. private equity firm Accel-KKR from Finnish industrial group Cargotec. Navis software ran a large share of the world's container terminals.

Then

Navis kept operating as a standalone software business under Accel-KKR, competing directly with Tideworks.

Now

Private equity consolidated the terminal operating system market into PE-owned vendors, making further ownership shuffles more likely.

Why this matters now

The same carve-out mechanism—a specialized TOS developer moving under software-focused private equity—now applies to Tideworks.

March 2026

Diversis acquires LTi Technology Solutions (2026)

Six months before the Tideworks deal, Diversis acquired LTi, a global leader in equipment finance software. Co-founders Randy Haug and Russ Hallberg kept minority stakes, and chief executive Jeff Van Slyke stayed on with the existing leadership team.

Then

LTi continued with the same leadership and product roadmap under Diversis, with plans to accelerate development and add AI features.

Now

The deal established Diversis's template: buy niche vertical software, keep management, invest in the product.

Why this matters now

Tideworks is expected to follow the same playbook—continuity of leadership, product investment, and geographic growth.

Sources

(6)