L3Harris (LHX) Earnings Call Highlights Growth, Backlog

L3harris Technologies ((LHX)) has held its Q1 earnings call. Read on for the main highlights of the call.

L3Harris Technologies’ latest earnings call struck an upbeat tone, with management emphasizing strong organic growth, record backlog, and clear strategic progress. While cash flow was negative in the quarter and some programs saw estimate adjustments, executives framed these as timing and execution headwinds against a backdrop of improving margins and powerful long-term demand signals.

Robust Q1 Revenue and Organic Growth

L3Harris posted Q1 revenue of $5.7 billion, representing roughly 15% organic growth and an increase of more than $600 million versus last year. Management highlighted that the company has now delivered organic growth in nine of the last ten quarters and reaffirmed full-year revenue guidance of $23.0–$23.5 billion, implying about 7% organic growth at the midpoint.

Record Backlog and Strong Book-to-Bill

Backlog nearly doubled to more than $40 billion, giving the company close to two times annual revenue coverage and underpinning multi-year visibility. Importantly, this figure excludes about $25 billion of Munitions Acceleration Council orders still under negotiation, while overall book-to-bill was 1.4 and international book-to-bill a robust 2.2 in the quarter.

Profitability, Margins and EPS Expansion

Segment operating income climbed by $125 million to $902 million, driving a segment operating margin of 15.7%, up 10 basis points year over year despite mix and investment headwinds. GAAP EPS surged 33% to $2.72, and the company nudged full-year GAAP EPS guidance higher by $0.10 to a range of $11.40–$11.60, signaling confidence in earnings power.

Space & Mission Systems Leads Segment Outperformance

Space & Mission Systems remained the standout, with revenue jumping 24% to $3.0 billion on the back of strong demand and program execution. Margins in this segment expanded as the company recognized milestones on a classified program and continued to improve performance on key space contracts, reinforcing its positioning in high-priority national security missions.

Missile Solutions Growth with Mixed Margin Signals

Missile Solutions delivered revenue of $1.0 billion, up 18% year over year, reflecting solid demand across key missile and munitions programs. Segment margin improved to 12.5%, up 110 basis points, supported by favorable mix, higher volume and a gain on the sale of legacy assets, even as some unfavorable estimate-at-completion adjustments tempered the improvement.

Communications and International Growth Momentum

The Communication & Spectrum Dominance segment recorded $1.9 billion of revenue, growing 3% year over year and reflecting steady demand in tactical and resilient communications. International business was a bright spot, with revenue growth exceeding 20% and $460 million of international orders booked for low-probability-of-detect communications from three NATO countries.

Major Program Wins and Strategic Orders

Management spotlighted an international multi-aircraft missionized business jet program valued at more than $2.2 billion, with an initial $726 million order already booked in Q1. The company also secured around $700 million in Strategic Tanker & Transport awards in Canada, booked 56 SDA tracking satellites to date, delivered the first two Peregrine jets to Australia and has about 20 missionized jets currently in production.

Capital Moves and Structural Actions to Unlock Value

The company filed a confidential Form S-1 for an initial public offering of its Missile Solutions business under the new name Axyv, part of a broader effort to sharpen strategic focus. Alongside this, L3Harris received a $1 billion investment from the Department of War and agreed to sell 60% of its space propulsion and power systems business, moves aimed at unlocking value and accelerating capacity expansion.

Investment in Innovation and Productivity Gains

L3Harris increased investment in innovation and capacity by 44% in the quarter, continuing a push into advanced technologies and future programs. Management highlighted that revenue per employee has risen about 25% over the past couple of years, while the installed base of roughly 1 million software-defined radios is expected to grow about 20% over the next few years.

Technical Achievements and Program Demonstrations

The company’s HPTSS program team earned the 2025 David Packard Excellence in Acquisition Award for its role in hypersonic tracking, underscoring technical credibility in missile defense. L3Harris also noted that its VAMPIRE counter-UAS system is now combat-proven with hundreds of successful engagements and that it supports the Artemis II mission with more than 100 subsystems.

Free Cash Flow Outflow and Cash Timing

Free cash flow was an outflow of $187 million in Q1, which management attributed primarily to working capital timing and typical early-year cash patterns. Executives reiterated full-year free cash flow guidance of $3.0 billion, emphasizing that cash generation will be weighted to the second half of the year as deliveries and milestone payments ramp.

EAC Adjustments and Margin Variability in Missile Solutions

In Missile Solutions, the company reported net unfavorable estimate-at-completion adjustments that offset some of the margin gains from volume and asset sales, introducing near-term variability in profitability. Management framed these EAC impacts as program-specific, noting that underlying demand and production levels remain strong across the missile portfolio.

Growth in Lower-Margin Areas and Investment-Driven Pressure

L3Harris acknowledged that higher growth in lower-average-margin businesses and stepped-up R&D and customer demonstration spending partially dampened overall margin expansion. The company characterized these investments as deliberate, aimed at securing future programs and reinforcing technology leadership even as they apply some near-term pressure on reported margins.

Conservative Full-Year Revenue Posture

Despite the 15% organic growth delivered in Q1, management chose to reaffirm rather than raise full-year revenue guidance, signaling a conservative stance. The CFO cited execution risk, calendar timing including extra productive days in Q1, and recognition that substantial work remains over the rest of the year as reasons to hold the 7% organic growth outlook at the midpoint.

Guidance Insulated from Pending Transactions

Management underscored that current guidance and the 2028 financial framework still treat Missile Solutions as structured today and do not factor in the planned IPO, the $1 billion strategic investment or the majority sale of the space propulsion business. As a result, investors may see guidance updates once these transactions close and the company can better quantify their earnings and cash impacts.

Forward-Looking Outlook and Guidance

The company reaffirmed 2026 revenue guidance of $23.0–$23.5 billion, implying roughly 7% organic growth at the midpoint, and maintained its low-16% segment operating margin target. L3Harris also raised GAAP EPS guidance to $11.40–$11.60, reiterated its $3.0 billion free cash flow goal with back-half weighting, and outlined modestly higher non-service and pension income, reinforcing a constructive medium-term earnings trajectory.

L3Harris’ earnings call painted a picture of a defense contractor benefiting from surging demand in space, missiles and secure communications while still wrestling with cash timing and program-level noise. For investors, the combination of record backlog, accelerating international orders and disciplined though conservative guidance suggests a company with growing long-term visibility and multiple levers for value creation as strategic transactions unfold.