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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and BLACKBAUD INC (BLKB). Click either name above to swap in a different company.

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $281.1M, roughly 1.0× BLACKBAUD INC). BLACKBAUD INC runs the higher net margin — 11.1% vs -1.2%, a 12.3% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs 4.2%). BLACKBAUD INC produced more free cash flow last quarter ($37.0M vs $30.6M). Over the past eight quarters, ADTRAN Holdings, Inc.'s revenue compounded faster (13.5% CAGR vs -1.1%).

Adtran, Inc. is an American fiber networking and telecommunications company headquartered in Huntsville, Alabama. It is a vendor of both residential and enterprise networking equipment, along with administrative software for network management and deployment. Its customers include communications service providers, governments, enterprises and utilities.

Blackbaud, Inc. is a cloud computing provider that supports nonprofits, foundations, corporations, education institutions, healthcare organizations, religious organizations, and individual change agents. Its products focus on fundraising, website management, CRM, analytics, financial management, ticketing, and education administration.

ADTN vs BLKB — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.0× larger
ADTN
$291.6M
$281.1M
BLKB
Growing faster (revenue YoY)
ADTN
ADTN
+15.9% gap
ADTN
20.1%
4.2%
BLKB
Higher net margin
BLKB
BLKB
12.3% more per $
BLKB
11.1%
-1.2%
ADTN
More free cash flow
BLKB
BLKB
$6.4M more FCF
BLKB
$37.0M
$30.6M
ADTN
Faster 2-yr revenue CAGR
ADTN
ADTN
Annualised
ADTN
13.5%
-1.1%
BLKB

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
ADTN
ADTN
BLKB
BLKB
Revenue
$291.6M
$281.1M
Net Profit
$-3.6M
$31.1M
Gross Margin
39.0%
59.2%
Operating Margin
1.5%
18.3%
Net Margin
-1.2%
11.1%
Revenue YoY
20.1%
4.2%
Net Profit YoY
92.2%
620.3%
EPS (diluted)
$-0.02
$0.67

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
ADTN
ADTN
BLKB
BLKB
Q1 26
$281.1M
Q4 25
$291.6M
$295.3M
Q3 25
$279.4M
$281.1M
Q2 25
$265.1M
$282.0M
Q1 25
$247.7M
$269.9M
Q4 24
$242.9M
$302.1M
Q3 24
$227.7M
$286.6M
Q2 24
$226.0M
$287.3M
Net Profit
ADTN
ADTN
BLKB
BLKB
Q1 26
$31.1M
Q4 25
$-3.6M
$36.7M
Q3 25
$-10.3M
$47.5M
Q2 25
$-20.5M
$26.5M
Q1 25
$-11.3M
$4.3M
Q4 24
$-46.1M
$-346.4M
Q3 24
$-33.3M
$18.3M
Q2 24
$-49.7M
$21.2M
Gross Margin
ADTN
ADTN
BLKB
BLKB
Q1 26
59.2%
Q4 25
39.0%
58.3%
Q3 25
38.3%
59.6%
Q2 25
37.3%
59.7%
Q1 25
38.4%
57.5%
Q4 24
36.9%
53.8%
Q3 24
36.5%
54.9%
Q2 24
36.0%
56.0%
Operating Margin
ADTN
ADTN
BLKB
BLKB
Q1 26
18.3%
Q4 25
1.5%
20.0%
Q3 25
-1.0%
19.4%
Q2 25
-5.0%
20.3%
Q1 25
-1.6%
7.3%
Q4 24
-6.9%
-121.5%
Q3 24
-11.5%
14.4%
Q2 24
-17.0%
14.4%
Net Margin
ADTN
ADTN
BLKB
BLKB
Q1 26
11.1%
Q4 25
-1.2%
12.4%
Q3 25
-3.7%
16.9%
Q2 25
-7.7%
9.4%
Q1 25
-4.5%
1.6%
Q4 24
-19.0%
-114.6%
Q3 24
-14.6%
6.4%
Q2 24
-22.0%
7.4%
EPS (diluted)
ADTN
ADTN
BLKB
BLKB
Q1 26
$0.67
Q4 25
$-0.02
$0.75
Q3 25
$-0.12
$0.98
Q2 25
$-0.24
$0.55
Q1 25
$-0.14
$0.09
Q4 24
$-0.58
$-6.82
Q3 24
$-0.38
$0.35
Q2 24
$-0.63
$0.41

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
BLKB
BLKB
Cash + ST InvestmentsLiquidity on hand
$95.7M
$34.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$145.8M
$34.6M
Total Assets
$1.2B
$2.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
BLKB
BLKB
Q1 26
$34.1M
Q4 25
$95.7M
$38.9M
Q3 25
$93.7M
$38.3M
Q2 25
$106.3M
$41.6M
Q1 25
$101.3M
$37.2M
Q4 24
$76.0M
$67.6M
Q3 24
$88.5M
$34.6M
Q2 24
$111.2M
$30.4M
Total Debt
ADTN
ADTN
BLKB
BLKB
Q1 26
Q4 25
$1.1B
Q3 25
Q2 25
Q1 25
Q4 24
$1.1B
Q3 24
$1.0B
Q2 24
$1.0B
Stockholders' Equity
ADTN
ADTN
BLKB
BLKB
Q1 26
$34.6M
Q4 25
$145.8M
$85.1M
Q3 25
$141.6M
$108.2M
Q2 25
$169.6M
$72.7M
Q1 25
$138.9M
$17.5M
Q4 24
$127.0M
$126.8M
Q3 24
$205.6M
$544.8M
Q2 24
$213.6M
$577.5M
Total Assets
ADTN
ADTN
BLKB
BLKB
Q1 26
$2.1B
Q4 25
$1.2B
$2.4B
Q3 25
$1.2B
$2.1B
Q2 25
$1.2B
$2.6B
Q1 25
$1.2B
$2.1B
Q4 24
$1.2B
$2.5B
Q3 24
$1.3B
$2.6B
Q2 24
$1.3B
$3.0B
Debt / Equity
ADTN
ADTN
BLKB
BLKB
Q1 26
Q4 25
13.06×
Q3 25
Q2 25
Q1 25
Q4 24
8.50×
Q3 24
1.84×
Q2 24
1.78×

Cash Flow & Capital Efficiency

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

Metric
ADTN
ADTN
BLKB
BLKB
Operating Cash FlowLast quarter
$42.2M
$51.5M
Free Cash FlowOCF − Capex
$30.6M
$37.0M
FCF MarginFCF / Revenue
10.5%
13.2%
Capex IntensityCapex / Revenue
4.0%
Cash ConversionOCF / Net Profit
1.65×
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$294.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
BLKB
BLKB
Q1 26
$51.5M
Q4 25
$42.2M
$58.0M
Q3 25
$12.2M
$139.2M
Q2 25
$32.2M
$66.9M
Q1 25
$43.2M
$1.4M
Q4 24
$2.4M
$73.6M
Q3 24
$43.3M
$104.0M
Q2 24
$19.9M
$53.1M
Free Cash Flow
ADTN
ADTN
BLKB
BLKB
Q1 26
$37.0M
Q4 25
$30.6M
$55.0M
Q3 25
$4.2M
$135.7M
Q2 25
$27.5M
$66.3M
Q1 25
$35.8M
$712.0K
Q4 24
$-895.0K
$73.4M
Q3 24
$37.1M
$102.9M
Q2 24
$8.4M
$48.0M
FCF Margin
ADTN
ADTN
BLKB
BLKB
Q1 26
13.2%
Q4 25
10.5%
18.6%
Q3 25
1.5%
48.3%
Q2 25
10.4%
23.5%
Q1 25
14.4%
0.3%
Q4 24
-0.4%
24.3%
Q3 24
16.3%
35.9%
Q2 24
3.7%
16.7%
Capex Intensity
ADTN
ADTN
BLKB
BLKB
Q1 26
Q4 25
4.0%
1.0%
Q3 25
2.9%
1.2%
Q2 25
1.8%
0.2%
Q1 25
3.0%
0.3%
Q4 24
1.4%
0.1%
Q3 24
2.7%
0.4%
Q2 24
5.1%
1.8%
Cash Conversion
ADTN
ADTN
BLKB
BLKB
Q1 26
1.65×
Q4 25
1.58×
Q3 25
2.93×
Q2 25
2.53×
Q1 25
0.32×
Q4 24
Q3 24
5.69×
Q2 24
2.50×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ADTN
ADTN

Subscriber Solutions$96.2M33%
Optical Networking Solutions$81.8M28%
Access Aggregation Solutions$64.6M22%
Services And Support$48.9M17%

BLKB
BLKB

Segment breakdown not available.

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