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Side-by-side financial comparison of ESPEY MFG & ELECTRONICS CORP (ESP) and RAPID MICRO BIOSYSTEMS, INC. (RPID). Click either name above to swap in a different company.

ESPEY MFG & ELECTRONICS CORP is the larger business by last-quarter revenue ($12.1M vs $11.3M, roughly 1.1× RAPID MICRO BIOSYSTEMS, INC.). ESPEY MFG & ELECTRONICS CORP runs the higher net margin — 23.1% vs -110.8%, a 133.9% gap on every dollar of revenue. On growth, RAPID MICRO BIOSYSTEMS, INC. posted the faster year-over-year revenue change (37.3% vs -10.8%). RAPID MICRO BIOSYSTEMS, INC. produced more free cash flow last quarter ($-3.3M vs $-4.1M). Over the past eight quarters, RAPID MICRO BIOSYSTEMS, INC.'s revenue compounded faster (41.8% CAGR vs 21.3%).

ESPEY MFG & ELECTRONICS CORP is a US-based manufacturer specializing in high-reliability power supplies, power conversion systems and specialized electronic components. It serves aerospace, defense, industrial and transportation sectors, delivering custom solutions for harsh environments to OEMs and government contractors across North America and select global markets.

Rapid Micro Biosystems, Inc. develops and manufactures automated microbial detection and quality control solutions for the life sciences industry. Its core products serve biopharmaceutical manufacturers, contract development and manufacturing organizations, operating across key global markets including North America, Europe and Asia-Pacific, helping clients cut testing timelines and improve operational efficiency.

ESP vs RPID — Head-to-Head

Bigger by revenue
ESP
ESP
1.1× larger
ESP
$12.1M
$11.3M
RPID
Growing faster (revenue YoY)
RPID
RPID
+48.1% gap
RPID
37.3%
-10.8%
ESP
Higher net margin
ESP
ESP
133.9% more per $
ESP
23.1%
-110.8%
RPID
More free cash flow
RPID
RPID
$795.1K more FCF
RPID
$-3.3M
$-4.1M
ESP
Faster 2-yr revenue CAGR
RPID
RPID
Annualised
RPID
41.8%
21.3%
ESP

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
ESP
ESP
RPID
RPID
Revenue
$12.1M
$11.3M
Net Profit
$2.8M
$-12.5M
Gross Margin
34.7%
Operating Margin
25.3%
-108.2%
Net Margin
23.1%
-110.8%
Revenue YoY
-10.8%
37.3%
Net Profit YoY
47.0%
-29.3%
EPS (diluted)
$0.99
$-0.26

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
ESP
ESP
RPID
RPID
Q4 25
$12.1M
$11.3M
Q3 25
$9.1M
$7.8M
Q2 25
$9.6M
$7.3M
Q1 25
$10.3M
$7.2M
Q4 24
$13.6M
$8.2M
Q3 24
$10.4M
$7.6M
Q2 24
$11.6M
$6.6M
Q1 24
$8.3M
$5.6M
Net Profit
ESP
ESP
RPID
RPID
Q4 25
$2.8M
$-12.5M
Q3 25
$2.2M
$-11.5M
Q2 25
$2.9M
$-11.9M
Q1 25
$1.7M
$-11.3M
Q4 24
$1.9M
$-9.7M
Q3 24
$1.6M
$-11.3M
Q2 24
$1.9M
$-12.6M
Q1 24
$1.0M
$-13.3M
Gross Margin
ESP
ESP
RPID
RPID
Q4 25
34.7%
Q3 25
35.4%
Q2 25
39.3%
Q1 25
28.6%
Q4 24
23.2%
Q3 24
26.8%
Q2 24
27.6%
Q1 24
25.0%
Operating Margin
ESP
ESP
RPID
RPID
Q4 25
25.3%
-108.2%
Q3 25
22.7%
-145.1%
Q2 25
27.4%
-167.3%
Q1 25
17.0%
-161.8%
Q4 24
14.9%
-124.5%
Q3 24
16.5%
-158.3%
Q2 24
18.4%
-202.1%
Q1 24
13.2%
-254.4%
Net Margin
ESP
ESP
RPID
RPID
Q4 25
23.1%
-110.8%
Q3 25
23.9%
-146.8%
Q2 25
30.6%
-163.3%
Q1 25
16.5%
-156.3%
Q4 24
14.0%
-117.6%
Q3 24
15.3%
-148.9%
Q2 24
16.3%
-190.1%
Q1 24
12.5%
-237.4%
EPS (diluted)
ESP
ESP
RPID
RPID
Q4 25
$0.99
$-0.26
Q3 25
$0.76
$-0.26
Q2 25
$1.07
$-0.27
Q1 25
$0.63
$-0.26
Q4 24
$0.71
$-0.22
Q3 24
$0.61
$-0.26
Q2 24
$0.73
$-0.29
Q1 24
$0.40
$-0.31

Balance Sheet & Financial Strength

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

Metric
ESP
ESP
RPID
RPID
Cash + ST InvestmentsLiquidity on hand
$17.8M
$20.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$53.2M
$33.2M
Total Assets
$85.2M
$74.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESP
ESP
RPID
RPID
Q4 25
$17.8M
$20.0M
Q3 25
$22.2M
$18.9M
Q2 25
$18.9M
$18.3M
Q1 25
$13.9M
$18.9M
Q4 24
$8.0M
$16.9M
Q3 24
$4.8M
$22.0M
Q2 24
$4.4M
$37.1M
Q1 24
$5.6M
$22.4M
Stockholders' Equity
ESP
ESP
RPID
RPID
Q4 25
$53.2M
$33.2M
Q3 25
$51.0M
$44.3M
Q2 25
$50.8M
$54.5M
Q1 25
$46.3M
$65.5M
Q4 24
$44.8M
$75.4M
Q3 24
$42.5M
$84.4M
Q2 24
$41.3M
$94.6M
Q1 24
$39.3M
$105.9M
Total Assets
ESP
ESP
RPID
RPID
Q4 25
$85.2M
$74.9M
Q3 25
$84.8M
$84.4M
Q2 25
$79.1M
$75.6M
Q1 25
$72.8M
$85.4M
Q4 24
$60.2M
$98.2M
Q3 24
$57.6M
$105.8M
Q2 24
$56.5M
$117.1M
Q1 24
$53.1M
$127.7M

Cash Flow & Capital Efficiency

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

Metric
ESP
ESP
RPID
RPID
Operating Cash FlowLast quarter
$-2.8M
$-3.2M
Free Cash FlowOCF − Capex
$-4.1M
$-3.3M
FCF MarginFCF / Revenue
-34.1%
-29.6%
Capex IntensityCapex / Revenue
10.9%
0.8%
Cash ConversionOCF / Net Profit
-1.00×
TTM Free Cash FlowTrailing 4 quarters
$11.7M
$-31.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ESP
ESP
RPID
RPID
Q4 25
$-2.8M
$-3.2M
Q3 25
$5.7M
$-9.1M
Q2 25
$2.8M
$-9.7M
Q1 25
$11.5M
$-9.1M
Q4 24
$5.4M
$-9.9M
Q3 24
$1.4M
$-8.6M
Q2 24
$3.2M
$-10.1M
Q1 24
$1.4M
$-15.5M
Free Cash Flow
ESP
ESP
RPID
RPID
Q4 25
$-4.1M
$-3.3M
Q3 25
$4.4M
$-9.1M
Q2 25
$915.3K
$-10.1M
Q1 25
$10.5M
$-9.4M
Q4 24
$4.5M
$-10.0M
Q3 24
$724.8K
$-8.8M
Q2 24
$2.6M
$-10.6M
Q1 24
$379.1K
$-16.1M
FCF Margin
ESP
ESP
RPID
RPID
Q4 25
-34.1%
-29.6%
Q3 25
48.7%
-116.4%
Q2 25
9.5%
-138.6%
Q1 25
101.8%
-130.2%
Q4 24
33.0%
-121.8%
Q3 24
6.9%
-116.0%
Q2 24
22.2%
-159.8%
Q1 24
4.6%
-287.1%
Capex Intensity
ESP
ESP
RPID
RPID
Q4 25
10.9%
0.8%
Q3 25
14.2%
0.9%
Q2 25
19.3%
5.0%
Q1 25
9.3%
4.4%
Q4 24
6.5%
1.2%
Q3 24
6.4%
2.9%
Q2 24
5.7%
6.9%
Q1 24
12.5%
10.4%
Cash Conversion
ESP
ESP
RPID
RPID
Q4 25
-1.00×
Q3 25
2.64×
Q2 25
0.95×
Q1 25
6.72×
Q4 24
2.82×
Q3 24
0.87×
Q2 24
1.71×
Q1 24
1.37×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ESP
ESP

ASC606$11.3M93%
Other$855.0K7%

RPID
RPID

Products$9.3M83%
Services$2.0M17%

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