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Private companiesTracked

Long Wall

El Segundo, CA · Founded 2017

Long Wall, founded as ABL Space Systems, builds Cyclops, a surface-launched interceptor against ballistic missiles in midcourse flight, and RSX boosters for flight tests and threat targets. It left the commercial launch market in November 2024 and took its current name in February 2025.

Profile

What it builds and who buys it

  • ·Cyclops destroys missiles by hit-to-kill impact from an exoatmospheric kill vehicle, rather than by blast fragmentation.Long Wall (company release), Dec 15, 2025
  • ·Cyclops launches from a containerized launching station, packed in a shipping container, that can be deployed to bare ground or the deck of a ship.Long Wall (company release), Dec 15, 2025
  • ·Cyclops is also designed for compatibility with existing land and sea-based launchers.Tectonic, Dec 15, 2025
  • ·The company says its existing 160,000-plus square feet of facilities can produce over one hundred Cyclops rounds a year when fully used.Long Wall (company release), Dec 15, 2025
  • ·Its chief executive said in December 2025 that the company had been testing Cyclops since earlier that year and planned further tests and demonstrations in 2026. The company declined to say whether it holds contracts for the interceptor.Tectonic, Dec 15, 2025
  • ·RSX, its in-house liquid booster, serves hypersonic flight tests and missile-defense target missions. Ironwood is its ground support equipment for launch and test.Long Wall
  • ·As ABL, it built the RS1 small-satellite rocket and the GS0 containerized launch system. RS1 failed in orbital launch attempts in 2023 and 2024, and the company exited commercial launch in November 2024.TechCrunch, Nov 15, 2024
  • ·Its chief executive announced the name Long Wall, after the Long Walls of Athens, in a February 2025 letter setting out the company’s focus on missile defense.Long Wall (company letter), Feb 19, 2025
  • ·In September 2023 Space Systems Command selected ABL for a $15 million tactically responsive launch demonstration under its existing STRATFI contract.ABL Space Systems (company release), Sep 18, 2023

Founders and leadership

  • Dan PiemontFounder and chief executive

    Co-founded the company as ABL in 2017 with Harry O’Hanley. Tectonic describes both as SpaceX veterans.Tectonic, Dec 15, 2025

  • Harry O’HanleyCo-founder

    Co-founded ABL in 2017 and was its chief executive when it raised its Series B in 2021.CNBC, Mar 25, 2021

Funding

Last valuation

$2.4B

Post-money, Series B extension, reportedSpaceNews (SpaceRef), Oct 25, 2021

Last round or tender

Form D offering

Dec 14, 2023SEC (Form D), Dec 29, 2023

No announcement from the company names this filing’s round. The Form D records $40.6 million of equity sold to 32 investors from December 14, 2023, of $100 million offered; TechCrunch reported it as more than $40 million closed toward up to $100 million. No valuation was stated.

Latest revenue figure

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Valuation to revenue

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Post-money valuation by round

$0$500M$1B$1.5B$2B$2.5B$3B202220242026$2.4B Series B extension
DateRoundRaisedPost-money
Dec 14, 2023Form D offeringNo announcement from the company names this filing’s round. The Form D records $40.6 million of equity sold to 32 investors from December 14, 2023, of $100 million offered; TechCrunch reported it as more than $40 million closed toward up to $100 million. No valuation was stated.——
Oct 25, 2021Series B extensionLed by and made up of the existing investor syndicate. The Form D for an equity offering begun October 22, 2021 records $202.0 million sold to 58 investors.$200M$2.40Breported
Mar 25, 2021Series BFrom T. Rowe Price, Fidelity Management, a third unnamed firm and existing investors. The Form D for an equity offering begun March 24, 2021 records $170.1 million sold to 85 investors.$170M$1.30Breported
Dec 9, 2020Debt offeringNo announcement names this filing’s offering. The Form D records $20.0 million of debt and options to acquire securities sold to 36 investors from December 9, 2020, the whole offering.——
Aug 5, 2020Venture roundRaised as ABL Space Systems. Led by Venrock, with New Science Ventures, Lynett Capital and Lockheed Martin Ventures, which had invested an undisclosed amount in July 2019. The round closed in March 2020 and was announced in August with $44.5 million of U.S. government contracts. The Form D for an equity offering begun March 6, 2020 records $47.5 million sold to 40 investors. No valuation was stated.$49M—

Primary capital across the rounds on file: $419M

Revenue

No citable revenue figure on file.

Secondary venues

  • Clarity (formerly Hiive)public page seen Oct 15, 2026

    Clarity Price $32.93, as of Oct 15, 2026

    Listed as ABL Space Systems, with a description of Long Wall. Clarity calls the figure a model-derived indicative estimate calculated daily; the page dates it no further than a "last updated" line reading August 28, 2026, and shows it as down 51.57% all time.

  • Nasdaq Private Marketpublic page seen Oct 15, 2026

    No price on the public page.

    Listed as ABL, linking lwall.com. Neither the page title nor its text shows a per-share figure. Its funding table shows a Series B-2 of $202 million dated October 22, 2021, with price per share and valuation behind sign-up.

  • Caplightpublic page seen Oct 15, 2026

    No price on the public page.

    Listed as Long Wall, under the slug lwall, with Long Beach as its location. No public MarketPrice; the page shows an estimated valuation of $2.4 billion and a May 2024 debt round, with historical pricing behind a login.

  • Augmentpublic page seen Oct 15, 2026

    No price on the public page.

    Listed as ABL Space Systems and described as a satellite launch company. Bids, asks and the last transaction are behind sign-up.

A venue is listed when its public page named the company on the date shown. A price is the figure that page showed, under the venue’s own name for it and dated as the venue dated it; it is a level the venue publishes, not a trade. Nothing is recorded from behind a login.

Reads

Tracked only. No read has been prepared for this company; the figures above are the record.

Sources

Researched Oct 15, 2026