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Side-by-side financial comparison of Simulations Plus, Inc. (SLP) and WESTPORT FUEL SYSTEMS INC. (WPRT). Click either name above to swap in a different company.

Simulations Plus, Inc. is the larger business by last-quarter revenue ($18.4M vs $12.5M, roughly 1.5× WESTPORT FUEL SYSTEMS INC.). Simulations Plus, Inc. runs the higher net margin — 3.7% vs -274.8%, a 278.5% gap on every dollar of revenue. On growth, Simulations Plus, Inc. posted the faster year-over-year revenue change (-2.7% vs -11.4%).

Simulations Plus, Inc. develops absorption, distribution, metabolism, excretion, and toxicity (ADMET) modeling and simulation software for the pharmaceutical and biotechnology, industrial chemicals, cosmetics, food ingredients, and herbicide industries. In September 2014, the company acquired Cognigen Corporation, a provider of clinical trial data analysis and consulting services.

Westport Innovations is a company that develops alternative fuel, low-emissions technologies to allow engines to operate on clean-burning fuels such as compressed natural gas (CNG), liquefied natural gas (LNG), hydrogen and biofuels such as landfill gas. Headquartered in Vancouver, British Columbia, Canada, where the company was founded, Westport also has facilities in France, Sweden, Italy, China, Australia and the United States.

SLP vs WPRT — Head-to-Head

Bigger by revenue
SLP
SLP
1.5× larger
SLP
$18.4M
$12.5M
WPRT
Growing faster (revenue YoY)
SLP
SLP
+8.8% gap
SLP
-2.7%
-11.4%
WPRT
Higher net margin
SLP
SLP
278.5% more per $
SLP
3.7%
-274.8%
WPRT

Income Statement — Q1 FY2026 vs Q2 FY2025

Metric
SLP
SLP
WPRT
WPRT
Revenue
$18.4M
$12.5M
Net Profit
$676.0K
$-34.3M
Gross Margin
59.1%
6.7%
Operating Margin
3.9%
-8.1%
Net Margin
3.7%
-274.8%
Revenue YoY
-2.7%
-11.4%
Net Profit YoY
228.2%
-690.4%
EPS (diluted)
$0.03
$-1.98

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
SLP
SLP
WPRT
WPRT
Q4 25
$18.4M
Q3 25
$17.5M
Q2 25
$20.4M
$12.5M
Q1 25
$22.4M
Q4 24
$18.9M
Q3 24
$18.7M
$4.9M
Q2 24
$18.5M
$14.1M
Q1 24
$18.3M
Net Profit
SLP
SLP
WPRT
WPRT
Q4 25
$676.0K
Q3 25
$-681.0K
Q2 25
$-67.3M
$-34.3M
Q1 25
$3.1M
Q4 24
$206.0K
Q3 24
$843.0K
$-3.9M
Q2 24
$3.1M
$5.8M
Q1 24
$4.0M
Gross Margin
SLP
SLP
WPRT
WPRT
Q4 25
59.1%
Q3 25
56.4%
Q2 25
64.0%
6.7%
Q1 25
58.5%
Q4 24
54.0%
Q3 24
36.6%
13.6%
Q2 24
71.5%
16.7%
Q1 24
72.2%
Operating Margin
SLP
SLP
WPRT
WPRT
Q4 25
3.9%
Q3 25
3.8%
Q2 25
-364.5%
-8.1%
Q1 25
12.1%
Q4 24
0.7%
Q3 24
-6.2%
-43.9%
Q2 24
10.1%
-54.9%
Q1 24
24.3%
Net Margin
SLP
SLP
WPRT
WPRT
Q4 25
3.7%
Q3 25
-3.9%
Q2 25
-330.6%
-274.8%
Q1 25
13.7%
Q4 24
1.1%
Q3 24
4.5%
-79.3%
Q2 24
16.9%
41.2%
Q1 24
22.0%
EPS (diluted)
SLP
SLP
WPRT
WPRT
Q4 25
$0.03
Q3 25
$-0.03
Q2 25
$-3.35
$-1.98
Q1 25
$0.15
Q4 24
$0.01
Q3 24
$0.04
$-0.22
Q2 24
$0.15
$0.34
Q1 24
$0.20

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
SLP
SLP
WPRT
WPRT
Cash + ST InvestmentsLiquidity on hand
$35.7M
$6.1M
Total DebtLower is stronger
$977.0K
Stockholders' EquityBook value
$127.1M
$108.9M
Total Assets
$137.8M
$272.1M
Debt / EquityLower = less leverage
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SLP
SLP
WPRT
WPRT
Q4 25
$35.7M
Q3 25
$32.4M
Q2 25
$28.4M
$6.1M
Q1 25
$21.4M
Q4 24
$18.2M
Q3 24
$20.3M
Q2 24
$119.0M
Q1 24
$108.5M
Total Debt
SLP
SLP
WPRT
WPRT
Q4 25
Q3 25
Q2 25
$977.0K
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
SLP
SLP
WPRT
WPRT
Q4 25
$127.1M
Q3 25
$124.8M
Q2 25
$123.8M
$108.9M
Q1 25
$189.5M
Q4 24
$184.7M
Q3 24
$182.4M
$149.3M
Q2 24
$180.9M
$151.5M
Q1 24
$177.0M
Total Assets
SLP
SLP
WPRT
WPRT
Q4 25
$137.8M
Q3 25
$131.9M
Q2 25
$134.4M
$272.1M
Q1 25
$201.4M
Q4 24
$196.9M
Q3 24
$196.6M
Q2 24
$192.7M
Q1 24
$194.0M
Debt / Equity
SLP
SLP
WPRT
WPRT
Q4 25
Q3 25
Q2 25
0.01×
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
SLP
SLP
WPRT
WPRT
Operating Cash FlowLast quarter
$4.2M
$-5.6M
Free Cash FlowOCF − Capex
$-6.4M
FCF MarginFCF / Revenue
-51.6%
Capex IntensityCapex / Revenue
0.0%
6.6%
Cash ConversionOCF / Net Profit
6.26×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SLP
SLP
WPRT
WPRT
Q4 25
$4.2M
Q3 25
$5.6M
Q2 25
$8.1M
$-5.6M
Q1 25
$5.7M
Q4 24
$-1.3M
Q3 24
$1.7M
$-11.7M
Q2 24
$5.7M
$1.5M
Q1 24
$5.8M
Free Cash Flow
SLP
SLP
WPRT
WPRT
Q4 25
Q3 25
$5.3M
Q2 25
$7.8M
$-6.4M
Q1 25
$5.6M
Q4 24
$-1.4M
Q3 24
$1.6M
$-11.9M
Q2 24
$5.6M
$262.0K
Q1 24
$5.4M
FCF Margin
SLP
SLP
WPRT
WPRT
Q4 25
Q3 25
30.5%
Q2 25
38.5%
-51.6%
Q1 25
25.0%
Q4 24
-7.2%
Q3 24
8.8%
-243.4%
Q2 24
30.0%
1.9%
Q1 24
29.4%
Capex Intensity
SLP
SLP
WPRT
WPRT
Q4 25
0.0%
Q3 25
1.5%
Q2 25
1.5%
6.6%
Q1 25
0.3%
Q4 24
0.5%
Q3 24
0.1%
3.8%
Q2 24
0.6%
8.9%
Q1 24
2.4%
Cash Conversion
SLP
SLP
WPRT
WPRT
Q4 25
6.26×
Q3 25
Q2 25
Q1 25
1.84×
Q4 24
-6.18×
Q3 24
1.97×
Q2 24
1.81×
0.26×
Q1 24
1.44×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

SLP
SLP

Services Segment$9.5M52%
Development$7.2M39%
Discovery$1.3M7%

WPRT
WPRT

Segment breakdown not available.

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